i a d u e o z tr o tsoil e=i..i o6< ==>- uiaz d=5 az v9n it=- f u< g9 !!tr z.h NAS1351 sheet 1 of 5
national aerospace standard o copyrtght 2oo9 aerospace industries association of america" inc, all rights reserved = d a u e o z o tr u o q:n =v,-, a6z >=9 *=6 a_z frx; u< st uf fo or 6t zt =e 5x oo oz edu e p ?.1.4'l[0tital at*''544*t *iar{ea{$, table ii nominal size dash no. minxmum basic thread i fngth fc) safet wire hiole when specified iviinimum breaking strength (pounds) drilled hole location ab drilled hole (d) alloy steel corrosion resistant steel heat resistant steel max. min. max. min. 00 .500 (d) (d) (d) (d) 324 l40 28b ui .625 500 220 445 02 7r0 310 oji 03 940 420 836 04 .750 .040 .026 .039 n?? 1.190 530 1,058 06 .050 .035 1.820 810 r.620 ob .060 .040 .050 .044 2.650 1,180 2.360 .065 .045 3,600 1,600 3.200 4 1.000 .085 .065 6,20s 6.550(h) 2,970 s.820 5 i.izj .104 .084 +ssg 10.400(h) 4,640 9.280 6 1.250 . rz5 .103 .067 ,uol +4*?0 15,800(h) 7,020 14.080 7 r.375 ,l4l ,lzt 2w0 21,400(h) 9,500 19.000 d 1.500 .160 .140 e.$gs 28,800(h) 12,800 25.600 10 1.750 .198 .l78 43,500 20,500 41.000 i2 2.000 .235 .2l5 .097 .091 63,400 26,100 ca 7nn 14 2^2s0 .273 .253 86,500 3s.600 81.400 io 2,500 .310 .290 1 13,000 46.400 106,200 (a) ''m'' min, (5 thread pitches) = riegion of minimum engagement with full female thread required t^o ]vieet mil-dtl-i8240 requirements. @ locking element within ''m" region must develop required torque when tested in accordance with mil-dtl-lb24o. dd) length or diameter of locking element may be more or less than ''m'' providing all other v requirements are met. (b) "n', = one (1) complete thread pt-us unthreaded portion of end. for ease of starting, locking element shall not be effective within this area, (c) screws which have a length leijs than the minimum basic thread length, shali." be threaded as close to head as pmcticable, ficr screws which have a length greater than the minimum basic ^ thread length, the body and gfi.ip length shall be in accordance with asme 818,3. \t9 (d) drilled hole data in accordance with procurement spec ff-s-86. parts si-iall have drilled heads if specified by code h. screw sizes 04 and 06 shall have two (2) drilled holes spaced 1800. screw sizes 08 thru 16 shall have six (6) drilled holes spaced 600. (drilled holes not appltcable to screw sizes below 04). (e) identification letter "n" impreiised on the top or side of the head, for screw sizes 04 and larger only, to denote heat-resistant steel, (f) the intersection of the top anid side of the head may be chamfered or mdiushd at the manufacturer's option per asme 818.3. @ (g) the fillet shall be in accordance with asme 818.3, @ (h) minimum breaking strength values are based on 180 ksi heat treatment. lined through strength values were based on 170 ksi, revision 10 NAS1351 tntret z use of or reliance upon this document or any national aerospace standard is entirely voluntary. aia does not qualify suppliers or certify conformance of iten4s produced under national aerospace standards, aia makes no representation or claim respecting (1) the suitabiuty of items for any particular application or (2) the existence of or applicability thereto of patent or tmdei4arks rights. *-
o z i e u e z tr i o g=n 29s p{tr, < *ee a^z e:a l^ u< sh uf fo or z< =v >x oo oz d< idu national aerospace sta]\idard use of or reliance upon this document or any nanonal aerospace standard is entirely voluntary. aia does not quaufi si]'ppliers or certify conformance of items produced under national aerospace standards. aia makes no*epresentation or claim respecting (1) the suitabil1ty of itei'1s for any particular application or (2) the existence of or applicability thereto.of patent or tmdemarks rights. = e o copyright 2009 aerospace industries association of americia. inc. all rights reserved note: see code for ,ength toleriqnce shall be as nominal length jiztr o thru .375 over.37i; thru .750 over .750 thru i.ooo toleriinces up to and incl. 1,000 +.000 -,030 +.000 -.030 +.000 -,050 over 1.000 & incl. 2,500 +.000 - n40 +.000 -.060 +.000 -.100 over 2.500 & incl. 6.000 +.000 -.uou +,000 -.080 +.000 -.140 threads: un[{f-3a in accordance with procurement specification. material: alloy steel in accordance with procurement spec ff-s-86. corrosion-resistant steel in accordance with procurement spec ff-s-86. heat-resistant steel conformtng to the chemtstry of ams5731 (uns 566286) or ams5737 (uns s66286) cold worked and age hardened to meet thie fastener requirements of ff-s-86 and this standard. finish: all'y sree' -'ffiu'lk'#li,ltt8iblrt!'',i#'i1i'h?,?p;il;1i?,ll'i1ll' class 2 @ /in) corrosion resistant steel - cadmium plate in accordance with ams-qq-p-4l6, type r, v /i-d\ class 2. v - silver flash in accordance with ams2411. 1ml - passivate in accordance witi-i ams27oo, method 1, rype 6 or type 7, \]/ class 1. revision 10 nasrssl sheet 3 table iii scnlw screw size 1 00 01 uz 03 04 06 08 j 4 5 6 7 i 10 12 l4 16 .l25 -00-2 -01-2 .1bb -00-3 -01-3 -02-3 .250 -00-4 -0l-4 -02-4 -03-4 -04-4 -06-4 -08-4 .375 -00-6 -01-6 -02-6 -03-6 -04-6 -06-6 -08-6 - <-6 -4-6 -f,-o .s00 -02-b -03-b -04-8 -06-8 -08-b - l-x -4-b -5'8 -6-8 .625 -03-10 -04-10 -06-10 -08-10 -3-10 -4-70 -s-10 -6-10 .750 -04-12 -06-l2 -08-12 -4-l2 -5- rz -o- rl -8-12 .875 -06-14 -08-14 -3-14 -4-l4 -5-14 -b--t{ -7-r4 -b-14 1.000 -06-16 -08-16 -j--tb -4-l6 -s-16 -6-16 -7-16 -8-16 -10-16 1.250 -08-20 -3-20 -a-zv -s-20 -6-20 -7-20 -8-20 -10-20 1.500 -08-24 -3-24 -4-24 -5-24 -6-24 -7-24 -b-24 r0-24 . ll-l1 t.75ij -3-28 -4-28 -5-28 -6-28 -7-28 -b-28 10-28 rl2-28 2.000 -3-32 -4-32 -5-32 -6-32 -7-32 -8-32 10-32 i12-32 -14-32 2.250 -4-36 -5--l b -6-36 - /--16 -b-36 10-36 rt2-36 l4-36 2.500 -5-40 -6-40 - / -4il -8-40 1 (l-4(l r12-40 -14-+fj -i6-40 2.750 -6-44 -7-44 -8-44 -10-44 ,12-44 -1 4-44 3 000 -6-48 -7-48 -8-48 10-48 -l2-48 -14-48 -f 0-46 3.250 t12-52 -l4-52 -ro-f,2 3.500 -12-56 14-56 16-56 4.000 l4-64 i o-n+ 4.500 -14-72 -16- / ) 5.000 -16-80
natio,nal aerospace standard o copyright 2oo9 aerospacii industries association of america/ inc, all rights reserved ; = ; a = z tr o q:n ==>- ulnz a=6 d^z 6 u< sh u- fo ol oe z= e= 1x oo oz NAS1351-02-8 = .0i360-64 unrf-3a screw, cap, socket head, alloy steel, undrilled head, plain, .5oo inch long. black oxide finish. NAS1351c04h12 = .ll20-48 unrf-3a screw, cap, socket head, corrosion-resistant steel, drilled head, plain, ,750 inch long, passivated, NAS1351-081e16p = ,1t540-36 unrf-3a screw, cap, socket head, alloy steel, self-locking, optional type locking element. l,ooo inch long, cadmium plate, undrilled head. NAS1351c4ll24p = ,21500-28 unrf-3a screw, cap, socket head, corrosion-resistant steel, self-locking, longitudinal strip locking element, 1,500inches long, cadmium plate:, undrilled head. NAS1351n10ln32 = .6250-18 unrf-3a screw, cap, socket head, heat-re:sistant steel, self- locking, pellet locking element, 2.000 inches long, passivated, undrilled head, rev]sion 10 NAS1351 sheet 4 use of or reliance upon this document or any national aerospace standard is entirely voluntary. aia does not qualif/ suppliers or certify conformance of items produced under national aerospace standards, aia makes no representation or claim respecting (1) the suitabtuty of items for any parttcular application or (2) the existence of or appl]cability thereto of patent or tmdemarks rights.
a = a: e u e l o z o f o egn unz d>t; a-z u< sh uf i: or >2 =: 5x oo az d< -da national aerospace stanidard o copyright 2oo9 aerospace industries association of americ/\, inc. all rights reserved f,ral|f,n t*,t,q*ft{}5t$if; $lai4brns5 use of or reliance upon this document or any national aerospace standard is entirely voluntary. aia does not quaufy si'ppuers or certify conformance of items produced under national aerospace standards. aia makes no representation or claim respecting (1} the suitabil]ty of items for any particular application or (2) the existence of or applicability thereto of patent or tmdemarks rights. z NAS1351n12lb365 = NAS1351n4lb16b = ,7500-16 unrf-3a screw, cap, socket head, heat-resistant steel, self- locking, pa]-ch type locking element, 2,250 inches long, s]lver. flash, undrilled head. .2500-28 unrf-3a screw, cap, socket head, heat-resistant steel, self- locking, pa']-ch type locking elemen:r, 1.000 inch long, black oxide coating, undrilled head. ff-s-86: unless otherwise specified, cap screws furnished under this standard shall be sub]ect to in.process contr.ol and/or end product inspection which will insure mechanical, metallurgical, chemical and coating or treatment chamcteristics when sampled in accordance with asq 21.4, inspection level s-1, 1% aql. revision 10 NAS1351 sheet 5 notes: (i) locking element: exceptas noted herein, the locking element when specified shall be in accordance with mil-dtl.l8z4o and shall be fully engaged when used. @ (2) identification: manufacturerto identifyall minimum packages by package marking ofapplicable complete nas standard part no. in accordance with mil-std-13o. (3) dimensions in inches. unless otherwise specified dimensiicns and tolemnces shall be in accordance with ff-s-86, rype vi and asme 818,3. @ (4) referenced documents shall be of the issue in effect on he date of invitation for bid. (5) this standard takes precedence over documents specified herein. (6) addtttonal part marking shall be in accordance with ff-s;-86. (7) unless otherwise specified, part inventory manufactured to previous revisions of the applicable r'^\ dmwing or specification may be procured and used untii- stock is depleted, \t!2 (8) remove all burrs and sharp edges. @ procurement specification : @
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