AC 43.13-1B

Historical

Advisory circular · Acceptable Methods, Techniques, and Practices—Aircraft Inspection and Repair

A newer version is currentThis is a historical version. AC 43.13-1B CHG 1 Ed Update is the version in force, approved September 27, 2001.
Approved
September 8, 1998
Last reviewed
June 11, 2024
Cancelled by
AC43.13-1B CHG 1
Family
AC 43.13-1 · 7 versions
Revision
B
14 CFR parts
43, 65, 145, 21, 105, 23, 91, 121, 25
Cited by
95 ADs

Guidance, not mandatory unless a rule or AD requires it. DRS record last changed November 21, 2025.

Show pages 404–415
Page 416Open in PDF

Par 7-196 Page 7-352 TABLE 7-12. (CONTINUED) Bolt Number Description NAS2406-2412

Bolt, lock, shear protruding head, ti.

alloy NAS2506-2512

Bolt, lock, 100°head, ti. alloy NAS2606-2612

Bolt, lock, shear protruding head, ti. alloy NAS2706-2712

Bolt, lock, shear 100° head, ti. alloy NAS2803-2810

Bolt, lock, 100° hd., torq-set 180,000 psi NAS2903-2920

Bolt, hex. head, .

0156 O.S. shank, 160,000 psi NAS3003-3020

Bolt, hex. head, .

0312 O.S. shank, 160,000 psi NAS3103-3110

Bolt, U type NAS3203-3210

Bolt, hook NAS3303-3305

Bolt, U strap type NAS4104-4116

Bolt, 100° head, tri-wing recess, long thr., alloy stl.

TABLE 7-12. (CONTINUED) Bolt Number Description NAS4204-4216

Bolt, 100°head, tri-wing recess, long thr., cres.

NAS4304-4316

Bolt, 100° head, tri-wing recess, long thr., titanium NAS4400-4416

Bolt, 100° head, tri-wing recess, short thr., alloy stl.

NAS4500-4516

Bolt, 100° head, tri-wing recess, short thr., cres.

NAS4600-4616

Bolt, 100° head, tri-wing recess, short thr., titanium NAS4703-4716

Bolt, 100° reduced, tri-wing recess, short thr., alloy stl.

NAS4803-4816

Bolt, 100° reduced, tri-wing recess, short thr., cres.

NAS4903-4916

Bolt, 100° reduced, tri-wing recess, short thr., titanium NAS6203-6220

Bolt, hex. head, short thread, alloy steel NAS6303-6320

Bolt, hex. head, short thread, cres.

NAS6403-6420

Bolt, hex. head, short thread, titanium

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Par 7-196 Page 7-353 TABLE 7-12. (CONTINUED) Bolt Number Description NAS6604-6620

Bolt, hex head, long thread, alloy steel NAS6704-6720

Bolt, hex. head, long thread, cres.

TABLE 7-13. TABLE OF NUTS.

Nut Part Number Description AN256 Nut, self-lock right angle plate AN310 Nuts, castellated AN315 Nut, plain AN316 Nut, check AN320 Nut, castle shear AN335 Nut, plain, hex, nonstructural AN340 Nut, plain, hex., n-s, course thread AN341 Nut, plain, hex.

TABLE 7-13. (CONTINUED) N u tP a r tN u m b e r Description AN345 Nut, plain, hex., n-s, fine thread AN350 Nut, plain, wing AN355 Nut, engine, slotted AN356 Nut, stamped AN360 Nut, plain, engine AN361 Self-locking nut plate, countersunk 100°, 550 °F.

AN362 Nut, plate, self-locking, noncounters., 550°F.

AN363 Nut, self-locking, 550 °F.

AN364 Nut, self-locking, thin, 250 °F.

AN365 Nut, self-locking 250°F.

AN366 Nut, plate, noncounters., 250°F.

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Par 7-196 Page 7-354 TABLE 7-13. (CONTINUED) N u tP a r tN u m b e r Description AN373 Countersunk nut, plate 100°, 250°F.

AN805 Nut, union AN817 Nut, coupling AN818 Nut, coupling AN924 Nut, flared tube AN3054 Nut, coupling, elec. conduit AN3066 Nut, plain, hex.

conduit coupling AN6289 Nut, flared tube universal fitting AN121501-121550 Nut, plain or cres.

steel AN121551-121600 Nut, castel., hex.

MS9099-9100 Nut, hex., boss connection, aluminum & cres.

TABLE 7-13. (CONTINUED) N u tP a r tN u m b e r Description MS9197-9199 Nut, tube coupling MS9200-9201 Nut, plain, hex., boss connection MS9356-9357 Nut, plain hex., A-286 MS9358-9359 Nut, castellated hex., A-286 MS9360 Nut, plain hex.

Drilled, A-286 MS9361-9362 Nut, plain hex.

Check, A-286 MS9363-9364 Nut, slotted hex.

Shear hd., A-286 MS9553 Nut, hex. Boss connection, cres.

MS9766-9767 Nut, dbl. Hex.

Cup washer locked, AMS 5737 cres. And AMS 6322 cad.

MS9881 Nut, plain, hex.

AMS 6322, cad. Plate MS9882 Nut, plain, hex., drilled, AMS 6322, cad. Plate

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Par 7-196 Page 7-355 TABLE 7-13. (CONTINUED) N u tP a r tN u m b e r Description MS9951 Nut, spanner, end slots, cup washer locked, AMS 6322 MS16203 Nut, plain, hex.

Nonmagnetic MS17825-17826 Nut, self-locking, castle, hex. Regular and thin MS17828 Nut, self-locking, nylon insert, 250°, regular ht., monel MS17829-17830 Nut, self-locking, nylon insert, 250°, regular ht., cres. Steel, steel MS19067-19068 Nut, plain, round, retaining MS20341 Nut, electrical, plain, hex.

MS20364 Nut, self-locking, 250 °F, thin MS20365 Nut, self-locking, 250° F, regular MS20501 Nut, plate, self-locking, two lug MS21025 Nut, castellated bearing, retaining

TABLE 7-13. (CONTINUED) N u tP a r tN u m b e r Description MS21047-21048 Nut, self-locking, plate, two lug, low ht.

MS21049-21050 Nut, self-locking, plate, two lug, 100° csk., low ht.

MS21051-21052 Nut, self-locking, plate, one lug, low ht.

MS21053-21054 Nut, self-locking, plate, one lug, 100° csk.

MS21055-21056 Nut, self-locking, plate, corner, low ht.

MS21057-21058 Nut, self-locking, plate, corner, 100° csk.

MS21059-21060 Nut, self-locking, plate, two lug, floating, low ht.

MS21061-21062 Nut, self-locking, plate, floating low ht., one lug MS21069-21070 Nut, self-locking, plate, two lug, low ht., reduced rivet spacing MS21071-21072 Nut, self-locking, plate, one lug, low ht., reduced rivet spacing MS21073-21074 Nut, self-locking, plate, corner, reduced rivet spacing

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Par 7-196 Page 7-356 TABLE 7-13. (CONTINUED) N u tP a r tN u m b e r Description MS21078 Nut, self-locking, plate, two lug, nylon insert MS21080 Nut, self-locking, plate, one lug, nylon insert MS21081 Nut, self-locking, plate, corner, nylon insert MS21083 Nut, self-locking, hex., nylon insert MS21340 Nut, plain, hex., electrical, thin, wire holes MS21917 Nut, sleeve coupling, flareless MS21921 Nut, sleeve coupling, flareless MS24679-24680 Nut, plain cap, low & high crown MS25082 Nut, plain, thin, hex., electrical MS27040 Nut, plain square MS27128 Nut, plain, welding

TABLE 7-13. (CONTINUED) N u tP a r tN u m b e r Description MS27130-27131 Nut, blind, rivet, flathead., open and closed end MS27151 Nut, stamped MS27955 Nut, spanner, plain, round MS35425-35426 Nut, wing, plain & drilled MS35649-35650 Nut, plain hex.

MS35690-35691 Nut, plain hex.

MS35692 Nut, slotted hex.

MS51967-51972 Nut, plain, hex.

MS90415 Nut, self-locking, 12 point captive washer MS172236-172270 Nut, spanner, bearing, retaining MS172321-172370 Nut, spanner

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Par 7-196 Page 7-357 TABLE 7-13. (CONTINUED) N u tP a r tN u m b e r Description NAS395-396 Nut, U type NAS443 Nut, self-locking, int. wrenching NAS444-445 Nut, double lug, anchor type, offset NAS446 Nut, flat type NAS447-448 Nut, plate, self-locking NAS449 Nut, anchor type NAS450 Nut, plate, self-locking NAS463 Shim, plain anchor nut NAS487 Nut, instrument mount NAS500 Shim, anchor nut, csk.

NAS509 Nut, drilled

TABLE 7-13. (CONTINUED) N u tP a r tN u m b e r Description NAS577-578 Nut, self-locking floating barrel retainer NAS671 Nut, plain hex., small pattern NAS680-681 Nut, plate, self-locking, two lug NAS682-683 Nut, plate, self-locking, one lug NAS684-685 Nut, plate, corner, self-locking NAS686 Nut, plate, self-locking, two lug, floating NAS687 Nut, plate, self-locking, one lug NAS688-695 Nut Assembly, self-locking, gang channel NAS696 Nut, plate self-locking, one lug, miniature NAS697 Nut, plate, self-locking, two lug, miniature NAS698 Nut, plate, corner, self-locking, miniature

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Par 7-196 Page 7-358 TABLE 7-13. (CONTINUED) N u tP a r tN u m b e r Description NAS1021-1022 Self-locking Nut, hex., regular and low ht.

NAS1023-1024 Nut, plate, self-locking, two lug NAS1025-1026 Nut, plate, self-locking, one lug NAS1027-1028 Nut, plate, corner, self-locking NAS1029-1030 Nut, plate, self-locking, one lug, two lug NAS1031 Nut, plate, self-locking, two lug, floating NAS1032 Nut, plate, self-locking, one lug, floating NAS1033 Nut, plate, right angle, floating, self-locking NAS1034-1041 Nut Assembly, self-locking, gang channel NAS1067 Nut, plate, self-locking, one lug, miniature NAS1068 Nut, plate, floating, self-locking, two lug, miniature

TABLE 7-13. (CONTINUED) N u tP a r tN u m b e r Description NAS1098 Nut, tube fitting NAS1287-1288 Nut, hexagonal, self-locking, nut and washer shear pin NAS1291 Nut, hexagonal, self-locking, low height NAS1329 Nut, blind rivet, flathead, internal thread NAS1330 Nut, blind rivet, csk. Head, internal thread NAS1408-1409 Nut, hexagonal, self-locking, regular height, coarse and fine thr.

NAS1410 Nut, tube fitting NAS1423 Nut, plain, thin hex., drilled jamnut NAS1473 Nut, plate, self-locking, two lug, cap floating NAS1474 Nut, plate, self-locking, two lug, cap floating, reduced rivet spacing NAS1512-1513 Nut, plate, self-locking gang channel

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Par 7-196 Page 7-359 TABLE 7-13. (CONTINUED) N u tP a r tN u m b e r Description NAS8679 Nut, self-locking, low height 550 °F, 800 °F

TABLE 7-14. TABLE OF WASHERS.

Washer Number Description AN935 Washer, lock, spring AN936 Washer, tooth lock AN950 and 955 Washer, ball socket, ball seat AN960 Washer, flat AN961 Washer, flat electrical (Brass, silver or tin-plated) AN970 Washer, flat, wood AN975 Washer, flat AN8013 Washer, insulator AN122576-122600 Washer, plain steel TABLE 7-14. (CONTINUED) Washer Number Description MS9081 Washer, key dbl.

Bearing retaining MS9274 Washer, key, dbl.

Bearing ret. Cres.

MS9276 Washer, key, cres.

AMS 5510 180° locking MS9320-9321 Washer, flat AMS 6350 and 5510 MS9482 Washer, flat, steel AMS 6437 or AMS 6485 diffused nickel cad.

Csk MS9549 Washer, flat, AMS 5510 MS9581 Washer, key, cres.

AMS 5510 90° locking MS9582 Washer, key, cres. AMS 5510 270° locking MS9684 Washer, cup, lock cres. AMS 5510 MS9768 Washer, flat, cres. AMS 5525 and AMS 5737 csk.

MS9880 Washer, cup, lock cres.

AMS 5510

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Par 7-196 Page 7-360 TABLE 7-14. (CONTINUED) Washer Number Description MS9952 Washer, cup, lock, spanner nut, cres.

AMS 5646 MS15795 Washer, flat, metal MS17811 Washer, thrust, steel MS19069-19070 Washer, key, retaining MS20002 Washer, plain, csk., hi-strength MS21258 Washer, key, retaining, steel MS25081 Washer, key MS27051 Washer, slotted MS27111 Washer, finishing, countersunk MS27129 Washer, finishing, csk., 80°, 82° MS27183 Washer, flat, round

TABLE 7-14. (CONTINUED) Washer Number Description MS28777 Washer, hydraulic, packing backup MS35333-35334 Washer, lock, flat internal tooth, light and heavy MS35335-35336 Washer, lock, flat and csk., external tooth MS35337-35340 Washer, lock, med., light, heavy MS35790 Washer, lock, 100° csk., ext. tooth MS122026-122075 Washer, lock spring MS172201-172235 Washer, key, single bearing, retaining MS172271-172320 Washer, key, single NAS70 Washer, plain NAS143 Washer, csk. and plain NAS390-391 Washer, finishing

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Par 7-196 Page 7-361 TABLE 7-14. (CONTINUED) Washer Number Description NAS460 Washer, tab type NAS513 Washer, rod end locking, steel NAS549 Washer, flat, resin fiber NAS620 Washer, flat, reduced O.D.

NAS1061 Washer, hi-temp, lock, spring NAS1099 Washer, bevel 9 1/2° NAS1169 Washer, dimpled 100° NAS1197 Washer, flat, 5052 aluminum NAS1252 Washer, flat NAS1401 Washer, radius, al.

Alloy, steel, cres. Steel NAS1515 Washer, plastic and rubber

TABLE 7-14. (CONTINUED) Washer Number Description NAS1587 Washer, 1200 °F, plain and csk.

NAS1598 Washer, sealing NAS1636 Washer, key dual tab NAS1640 Washer, lock, spring, nonmagnetic

TABLE 7-15. TABLE OF PINS.

Pin Number Description AN253

Pin, hinge AN380 & 381 Pin, cotter AN385 Pin, plain taper AN386 Threaded taper pin AN392-406 Pin, flathead AN415 Pin, lock

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Par 7-196 Page 7-362 TABLE 7-15. (CONTINUED) Pin Number Description AN416

Pin, retaining safety AN122676-122775

Pin, dowel steel AN121601-121925 Pin, flathead clevis .125 -.500 drilled shank AN150201-150400 Pin, lock, steel, brass MS9047 Pin, spring, steel, phoshated finish

MS9048 Pin, spring, steel, cadmium plate MS9105 Pin, lock MS9164 Pin, straight, steel, headless, oversize MS9245 Pin, cotter, cres. AMS 7211 MS9389 Pin, straight, headless, lock, AMS 5735 MS9390 Pin, straight, headless, cres. AMS 5735, dowel std. & O.S.

TABLE 7-15. (CONTINUED) Pin Number Description MS9462-9468 Pin, straight hd. AMS 5735 MS9486 Pin, straight, headless, lock, AMS 5132 MS9842-9848 Pin, straight, headed, AMS 5616 MS16555 Pin, straight, headless .0002 over nominal size MS16556 Pin, straight, headless .001 over nominal size MS16562 Pin, spring, tubular, slotted MS17984-17990 Pin, quick release, positive lock MS20253

Pin, hinge MS20392 Pin, straight, headed, drilled MS24665 Pin, cotter MS35671-35679 Pin, grooved, headless, tapered groove

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Par 7-196 Page 7-363 TABLE 7-15. (CONTINUED) Pin Number Description MS35810 Pin, clevis, headed MS39086 Pin, spring, tubular coiled MS51923 Pin, spring, tubular coiled MS51987 Pin, tubular coiled MS171401-171900 Pin, spring, SS, steel NAS427 Pin, pulley guard, steel, al. Alloy NAS561 Pin, spring slotted and coiled, heavy duty NAS574 Pin, rear mounting NAS607 Pin, headless, dowel, steel NAS1292-1296 Pin, shear thread 100° flush head NAS1322 Pin, shear thread, protruding head

TABLE 7-15. (CONTINUED) Pin Number Description NAS1332-1346 Pin, quick release NAS1353-1366 Pin, quick release, positive locking, double acting NAS1407 Pin, spring, coiled NAS1436-1442 Pin, swage lock, 100° shear head, pull type, steel NAS1446-1452 Pin, swage lock, protruding head, pull type, steel NAS1456-1462

Pin, swage lock, 100° head, pull type, steel NAS1465-1472

Pin, swage lock, protruding head, pull type, steel NAS1475-1482

Pin, swage lock, 100° head, pull type, steel NAS1486-1492 Pin, swage lock, 100° head, stump type, steel NAS1496-1502 Pin, swage lock, protruding head, stump type, steel NAS1525-1532 Pin, swage lock, protruding head, al. alloy