AC 43.13-1B

Change 1, editorial update

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

Approved
September 27, 2001
Last reviewed
May 10, 2024
This change
Editorial Update to AC 43.13-1B CHG 1.
Family
AC 43.13-1 · 7 versions
Revision
B, change 1
14 CFR parts
43, 65, 23, 105, 25, 91
Cited by
95 ADs

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

Show pages 403–414
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TABLE 7-11. TABLE OF SCREWS (CONTINUED) Screw MS, AH, or Description Screw MS, AN, or Description NAS Number NAS Humber NAS220-237 Screw, brazier hd. phil- NAS1 081 Setscrew, hex. socket, lips recessed self-locking NAS384-385 Screw, oval head, phil- NAS1096 Screw, hex. head, relips recessed 100°, cess, full thr.

82°, steel NAS387-388 hd., 100°, 82°, steel Screw machine, oval NAS1100 Screw, machine, panhead, tull thread, torq.-set NAS514 Screw, machine, 1009 flathead., fully NAS1101 Screw, machine, flat fill hd. full thread threaded, al. steel NAS517 Screw, 100° flathead, close tol. 160,000 psi NAS1102 Screw, machine, 100° flathead. fullthr. torq.- set NAS548 Screw, 100° flathead, type B tapping NAS1121-1128 Screw, machine, flat fill hd., short thread, torq.-set NAS560 Screw, machine, 100° structural, hi-tem p NAS1131-1138 Screw, machine, pan hd., short thread, tord.-set NAS600-606 Screw, machine, aircraft, panhead phillips NAS1141-1148 Screw, machine, recessed, fullthr., steel panhead. modified, short thread torq.-set NAS608-609 Screw, hex. socket 10 locking, drilled head cap, plain & self- NAS1151-1158 100° flathead., Screw, machine, sort thread, torq. -set NAS623 Screw, panhead. thr.

short, 160,000 psi NAS1161-1168 Screw, machine, 100° flathead., shear, torq. set NAS720 Screw, panhead, assem bled NAS1171-1178 Screw, panhead., shear, self-ock., torq.-set Par 7-195 Page 7-60

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TABLE 7-11. TABLE OF SCREWS (CONTINUED) Screw MS, AN, or Description Screw MS, AH, or Description NAS Number NAS Number NAS1181-1188 Screw, flat fill hd., NAS1299 Screw, shoulder, self-locking, 100° fathead torq.-set NAS1189 Screw, flat 100° hd., NAS1300 Thumbscrew;

+ full thread, self locking drilled/undrilled NAS1190 Screw, panhead., NAS1301 Screw, panhead, as self-locking, full thread sembled washers phillips recess NAS1191 Screw, flat fill. hd., tull thread, selflocking NAS1351-1352 hex. head, Socket Capscrew, arled/undred NAS1216 hi-torque, full thread Screw, panhead NAS1393 Screw, 82° fathead, torq-set NAS1217 Screw, panhead, hi-torque, short thread NAS1402-1406 Screw, panhead, phillips recess NAS1218 Screw, panhead, hi-torque, short thread NAS1579 Screw panhead., full thread, 1200° P NAS1219 Screw, 100° csk. hd., hi-torque, full thread NAS1603-1610 Screw, flush head, 0312 O.S.

10+ NAST20 10 Screw, 100° cak. hd., hi-torque, short thread NAS1620-1628 Screw, machine, 100° flat short thread, tora-set NAS1221 Screw; 100° clk. hd., hi-torque, long thread NAS1630-1634 Screw, machine, panhead., short thread, torq.-set NAS1298 Screw, shoulder, brazier head NAS1635 Screw, panhead cross recessed, full thread Par 7-195 Page 7-61

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TABLE 7-11. TABLE OF SCREWS (CONTINUED) Screw MS, AH, or Description Screw MS, AN, or Description HAS Number NAS Number NAS1299 Screw, shoulder, NAS5000-5006 Screw, panhead, 100° flathead tri-wing recess, short thr., alloy stl.

NAS1300 Thumbscrew, NAS5100-5106 Screw, panhead, drilled/undrilled tri-wing recess, short thr., cres.

NAS1301 Screw, panhead, as- NAS5200-5206 Screw, panhead, sembled washers phil- tri-wing recess, lips recess short thr., cres.

NAS1351-1352 hex. head, Socket Capscrew, NAS5300-5306 tri-wing recess, Screw, fillister head, arled/undned full thr., alloy stl.

NAS1393 Screw, 82° flathead, NAS5400-5406 Screw, fillister hd., tri-wing recess, tullthr., torq-set cres.

NAS5500-5506 Screw, fillister hd., tri- NAS1402-1406 Screw, panhead, phil- wing recess, full thr., lips recess titanium NAS5600-5606 Screw, 100° head, NAS1579 Screw, panhead., tri-wing recess, full thr., full thread, 1200° F alloy sti.

NAS5700-5706 Screw, 100° head, NAS1603-1610 Screw, flush head, tri-wing recess, fullthr., 0312 O.S. cres NAS5800-5806 Screw, 100° head, NAS1620-1628 Screw, machine, tri-wing recess, full thr., 100° flat short thread, titanium torq-set NAS5900-5903 Screw, hex. Head, NAS1630-1634 Screw, machine, tri-wing recess, fullthr., panhead., short thread, alloy sti.

torq.-set NAS6000-6003 Screw, hex. Head, NAS1635 Screw panhead cross tri-wing recess, full thr., recessed, full thread cres.

Par 7-195 Page 7-62

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Par 7-195 Page 7-63 TABLE 7-11. TABLE OF SCREWS (CONTINUED)

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TABLE 7-12. TABLE OF BOLTS Bolt Number Description Bolt Number Description AN 3-20 Bolt, machine AN148551-149350 Dolt, socket head, 6-hole drilled, .190-.625 AN 21-36 Bolt, clevis AN101001-101900 Bolt, hex, steel, head AN 42-49 Bolt, eye AN101901-102800 Bolt, hex., drilled shank, steel AN 73-81 Bolt, machine, drilled AN1 02801-103700 Bolt. Drilled hex. Head, (one hole), steel AN173-186 Bolt, aircraft AN103701-104600 Bolt, drilled hex. Head, Close tolerance steel, (ax holes) AN 774 Bolt, flared tube AN104601-105500 Bolt, hex. Head, corrosion-resistant steel AN 775 Bolt, universal fitting AN105501-106400 Bolt, hex. Head, drilled shank, corrosion-resistant ste el AN106401-107500 Bolt, hex., drilled head, (one holes), corrosion-resistant steel AN107301-108200 Bolt, hex., drilled head, (sixholes), corrosion-resistant ste el M S9033-9039 Bolt, machine 12pt.

Head, 130,000 psi min.

T.S.

M S9060-9066 Bolt, machine 12pt.

Double hex. 130,000 psi min. T.S. ext.

washer head, drilled Par 7-195 Page 7-64

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TABLE 7-12. TABLE OF BOLTS (CONTINUED) Bolt Number Description Bolt Number Description MS9088-9094 Bolt, machine, steel, MS9498-9508 Bolt, mach. hex. ho., drilled 12 pt. head 1 hole, full shank MS9110-9113 Bolt, machine, double MS9516-9526 Bolt, mach., stee hex., ext. washer head, AMS 6322 cad.

close tolerance 1 hole hex. hd.

MS9146-9152 Bolt, steel, 12 pt. hd. MS9527-9537 Bolt, mach., steel black oxide 125,000 psi AMS 6322 cad.

min. T.S. 1 hole hex. hd.

M S9157-9163 Bolt, steel, 12pt. hd. MS9554-9562 Bolt, mach., dbl. hex.

black oxide 125,000 psi ext. wash. hd., PD min. T.S shank, AMS 5731 MS9169-9175 hd., black oxide 125,000 psi min. T.S. Bolt, steel, 12 pt. drilled MS9563-9571 Bolt, mach., dol. hex AMS 5731 ext. wash. ho. drilled, M S9224 Bolt, 12 pt. head, heat MS9572-9580 Bolt, mach., dbl. hex resistant ext. wash. hd., drilled, PD shank AMS 5731 silver plated M S9397-9402 Bolt, tee head, cham fered cad. pl. AMS 6322, MS9583 -9591 6 holes full shank, Bolt, mach., hex. ho.

AMS 5731 MS9432-9437 Bolt, tee head AMS 5735 cham fered MS 9622-9630 Bolt, mach., hex. hd. 1 hole, Fo shank, ttanIum AMS 4967 — jo Bolt, mach. steel. AMS 6304 dittused MS9641-9648 Bolt, mach., hex. hd., 1 nickel cad. hex. hd., 3 holes hole, full shank titanium AMS 4967 M S9449-9459 Bolt, mach. steel, AMS 6304 diffused MS9649-9652 Bolt, mach., hex. hd.

nickel cad., hex. head full shank, titanium AMS 4967 M S9487-9497 Bolt, mach. hex. hd. full —¡C shank, AMS 5731 MS9676-9679 Bolt, mach., obl. hex.

ext. wash. hd., cup washer locked, cres.

AMS 5731 Par 7-195 Page 7-65

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TABLE 7-12. TABLE OF BOLTS (CONTINUED) Bolt Humber Description Bolt Number Description MS9680-9683 Bolt, mach., dbl. hex. M S9803-981 3 Bolt, mach., hex. Hd.

ext. wash. hd., cup 1 hole, full shank, washer locked, steel AMS 5643 AMS 6322 cad.

MS9685-9693 Bolt, mach., hex. hd. 1 M S9814-9824 Bolt, mach., hex. Hd.

hole, PD shank, steel 1 hole, PD shank, AMS 6304 diffused AMS 5643 nickel cad.

MS9694-9702 Bolt mach. dbl. hex M S9883-9891 Bolt, mach., dbl. Hex.

ext. wash. hd. AMS Ext. wash. Hd., 5708 AMS 5616 MS9703-9711 Bolt, mach., dbl. hex. M S9892-9900 Bolt mach., dbl. Hex.

ext. wash. hd., drilled, AMS 5708 —|O Ext wash. Hd., AMS 5616 drilled MS9712-9720 Bolt, mach. dbl. hex. M S9912-9920 Bolt, mach., dbl. Hex.

ext. wash. hd. drilled, Ext. wash. Hd., AMS 5708 silver plate PD shank, steel AMS 6322 cad MS97 30-97:38 Bolt, mach., dbl. hex. M S9921 - 9929 Bolt, mach., dbl. Hex.

ext. wash. hd. Ext. wash hd. PD PD shank, shank, steel AMS 6322 cres. AMS 5643 cad. Drilled MS97 39-9747 Bolt, mach. dbl. hex M S9930-9938 Bolt, mach., dbl. Hex.

est. wash, ho. onled, Ext. wash. Hd., PD shank, full shank, cres. AMS 5643 steel AM S 6322 cad.

MS9748-97 56 Bolt, mach. dbl. hex. M S9939-9946 Bolt, mach., dbl. Hex.

ext. wash. hd. PD Ext. wash. Ho., drilled, shank, titanium full shank, steel AMS 4967 AMS 6322 cad MS9757-9765 Bolt, mach., dbl. hex. M S20004-20024 Bolt, int. wrench, ext. wash. ho., PD 160 KSI shank, drilled, ttanium AMS 4967 MS9781-9791 Bolt, hex. ho., mach. M S20033-20046 Bolt, machine, full shank, AMS 5643 hex. Head, 1200 °F MS9792-9802 Bolt, mach., hex. hd. M S20073-20074 Bolt, machine, 1 hole, full shank, aircraft, drilled hd., AMS 5643 fine & coarse thr.

Par 7-195 Page 7-66

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TABLE 7-12. TABLE OF BOLTS (CONTINUED) Bolt Number Description Bolt Number Description MS21091-21093 Bolt, self-lock., 100° NAS563-572 Bolt, full thread, flush head, cross re- fully identified head cessed M S21094-21095 Bolt, self-lock., hex. NAS583-590 Bolt, 100° head, he ad hi torque, close tol.

160,000 psi MS21096-21097 Bolt, self-lock., pan- NAS624-644 Bolt, twelve point exhead, crass recessed ternal wrench, 180000 psi MS21098-21099 Bolt, self-lock., 12 pt. NAS653-658 Bolt, hex. head, ext. wrenching dose tolerance, ti. alloy M S21250 Bolt, NAS663-668 Bolt, full thread, 12 pt., ext. wrenching fully identified head NAS144-158 Bolt, internal wrench- NAS673-678 Bolt, hex head, close ing, steel, tolerance, ti. alloy 1/4-28 thru 1-1/8-12 NAS333-340 Bolt, 100°, NAS1003-1020 Bolt, machine, close tolerance, hex. head hi-strength NAS428 Bolt, adjusting, NAS1053 Eye Bolt Assembly, crowned hex. hd. Shoulder nut NAS464 Bolt, shear, close tolerance NAS1083 tanium alloy Bolt, 100° flathead, ti- NAS501 Bolt, hex. head, NAS1103-1120 Bolt, machine, drilled & undrilled hex. head NAS551 Bolt, universal fitting NAS1202-1210 Bolt, 100° phil. recessed, dose tolerance, 16,000 psi Par 7-195 Page 7-67

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TABLE 7-12. TABLE OF BOLTS (CONTINUED) Bolt Number Description Bolt Number Description NAS1223-1235 Bolt, self-locking, NAS1516-1522 Lock Bolt, 100° head, hex. head 250 °F pull type, al. Alloy NAS1236 Bolt, universal, NAS1578 Bolt, shear panhead, Tube-end, flareless 1200 + NAS1243-1250 Bolt, 100° head, NAS1580 Bolt, tension, flush hd., hi torq. 1600 psi 1200 °F NAS 1253-1260 Bolt, 100° head, flush NAS1581 Bolt, shear reduced hd., .03120.S. 100 °F flush head, hi -torque 1200 NAS1261-1270 Bolt, hex. head, NAS1586 Bolt-tension, 1200 °F, short thread 12 point, external wrenching NAS1271-1280 Bolt, 12 point ho., ex- NAS1588 Bolt, tension, flush hd., ternal wrenching 1200 F NAS1297 Bolt, shoulder, NAS1703-1710 Bolt, 100° head, hex. head 10€ .0156 O.S. shank, NAS1303-1 320 Bolt, hex. head, close NAS2005-2012 Bolt lock, protruding tolerance, 160,000 psi head, ti. Aloy NAS1414-1422 Lock bolt, NAS2105-2112 Bolt, lock, 100° head, shear 100° head, ti. Alloy all. ste el NAS1424-1432 Lock bot, NAS2206-2210 Bolt, lock, stump type, shear protruding head, protruding head, ti. AI- steel loy NAS1503-1510 Bolt, 100° flush head, NAS2306-2310 Bolt, lack, stump type, hitorg. 100° head, ti. Alloy Par 7-195 Page 7-68

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TABLE 7-12. TABLE OF BOLTS (CONTINUED) Bolt Number Description Bolt Number Description NAS2406-2412 Bolt, lock, shear pro- NAS4204-4216 Bolt, 100°head, tri-wing truding head, ti. alloy recess, long thr., cres.

NAS2506-2512 Bolt, lock, 100%head, NAS4304-4316 Bolt, 100° head, ti. alloy tri-wing recess, long thr., titanium NAS2606-2612 Bolt, lock, NAS4400-4416 Bolt, 100° head, shear protruding head, tri-wing recess, ti. alloy short thr., alloy stl.

NAS2706-2712 Bolt, lock, NAS4500-4516 Bott, 100° head, shear 100° head, tri-wing recess, ti. alloy short thr., cres.

NAS2803-2810 Bolt, lock, 100° hd., NAS4600-4616 Bolt, 100° head, torq-set 180,000 ps -10 tri-wing recess, short thr., titanium NAS2903-2920 Bolt, hex. head, NAS4703-4716 Bolt, 100° reduced, 0156 O.S. shank, 10 tri-wing recess, 160,000 psi short thr., alloy stl.

NAS3003-3020 Bolt, hex. head, NAS4803-4816 Bolt, 100° reduced, 0312 O.S. shank, tri-wing recess, 160,000 psi short thr., cres.

NAS3103-3110 Bolt, U type NAS4903-4916 Bott, 100° reduced, 10 tri-wing recess, short thr., titanium NAS6203-6220 Bolt, hex. head, NAS3203-3210 Bolt, hook short thread, alloy steel NAS6303-6320 Bolt, hex. head, NAS3303-3305 Bolt, U strap type -¡O short thread, cres.

NAS6403-6420 Bolt, hex. head, NAS4104-4116 Bolt, 100° head, short thread, titanium tri-wing recess, long thr., alloy atl.

Par 7-195 Page 7-69

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Par 7-195 Page 7-70 TABLE 7-12. TABLE OF BOLTS (CONTINUED)

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TABLE 7-13. TABLE OF NUTS Nut Part Number Description Nut Part Number Description AN256 Nut, self-lock AN345 Nut, plain, hex., n-s, right angle plate fine thread AN310 Nuts, castellated AN350 Nut, plain, wing AN315 Nut, plain AN355 Nut, engine, slotted AN316 Nut, check AN356 Nut, stamped Я AN320 Nut, castle shear AN360 Nut, plain, engine AN335 Nut, plain, hex, AN361 Self-locking nut plate, nonstructural countersunk 100°, 550 °F.

AN340 Nut, plain, hex., AN362 Nut, plate, self-locking, n-s, course thread noncounters., 550°F.

AN363 Nut, self-locking.

AN341 Nut, plain, hex. 550 °F.

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

AN365 Nut, self-locking 250°F.

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

Par 7-195 Page 7-71