Hexagon Head Cap Screw

18257-003

18257-003
(NSN) National Stock Number
5305-00-068-0508
Federal Supply Classification
5305 Screws
Item Name Code
18257
Schedule B Code
7318152000
Summary

2a thread class, right-hand thread direction, 0.594 inches minimum and 0.750 inches maximum thread length, 0.719 inches minimum and 0.750 inches maximum fastener length, hexagon head style, 0.150 inches minimum and 0.163 inches maximum head height

DAC HCC DMIL RNCC
5 - - 5
RNVC SADC MSDS RNAAC
2 - - ZG
Identification

An externally threaded fastener designed for insertion into holes in assembled parts, for mating with a preformed internal thread and for tightening or releasing by torquing the head. The threaded and unthreaded portions are both of the same nominal diameter of 0.190 inch (5 mm) or larger. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. The thread length being the controlled dimension, the grip length is not specified. A locking feature may be incorporated in the design of the head or threads. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. Excludes:bolt,machine; bolt,externally relieved body; bolt,internal wrenching; and screw,cap,socket head.

INC FIIG Concept Condition
18257 A003B0 - 1
Specifications
Thread Class
2a
Details A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.
Thread Direction
right-hand
Details The direction of the thread when viewed axially. a right-hand thread winds in a clockwise direction while a left-hand thread winds in a counterclockwise direction.
Thread Length
0.594 inches minimum and 0.750 inches maximum
Details A measurement of the extent of threads,including incomplete threads,along a line parallel to the longitudinal axis.
Fastener Length
0.719 inches minimum and 0.750 inches maximum
Details The dimension,measured along a line parallel to the longitudinal axis,from the largest bearing surface of the fastener head to the extreme opposite end,or as specifically designated for other type fasteners.
Head Style
hexagon
Details The style designation indicating the configuration that most nearly corresponds to the appearance of the head.
Head Height
0.150 inches minimum and 0.163 inches maximum
Details A measurement from the bottom to the top of the head,in distinction from depth.
Width Between Flats
0.428 inches minimum and 0.438 inches maximum
Details None.
End Item Identification
mrap - buffalo mk2a2;mrap - m-atv with cs13 pop and sne; mrap - m-atv ui; mrap - cougar tow - medium mine protected vehicle - mmpv; multiple launch rocket system (mlrs); armored multi-purpose vehicle (ampv); a4 bradley fighting vehicle; a3 bradley fighting vehicle; high-mobility artillery rocket system (himars)
Details The national stock number or the identification information of the end equipment for which the item is a part.
Nominal Thread Diameter
0.250 inches
Details The nominal length of a straight line which passes through the center of the threaded portion,and terminates at the circumference.
Thread Quantity Per Inch
20
Details The number of threads on the item per linear inch measured on a line parallel to the thread axis.
Minimum Tensile Strength
150000 pounds per square inch
Details The maximum rated load in tension applied in a longitudinal direction,per unit of cross-sectional area,that the material can withstand without rupture.
Criticality Code Justification
feat
Details The master requirement codes of those requirements which are technically critical by reason of tolerance,fit,performance,or other characteristics which affect identification of the item.
Surface Finish
63.0 microinches threads
Details Designates the specific surface roughness rating,representing the arithmetic average deviation of the surface from the meanline in profile.
Special Features
weapon system essential
Details Those unusual or unique characteristics or qualities of an item not covered in the other requirements and which are determined to be essential for identification on one or more other functions.
Material
steel comp 1013 or steel comp 1015 or steel comp 1016 or steel comp 1017 or steel comp 1018 or steel comp 1019 or steel comp 1020 or steel comp 1021 or steel comp 1022 or steel comp 1023 or steel comp 1524 or steel comp 1025 or steel comp 1026 or steel comp 1527 or steel comp 1029 or steel comp 1030 or steel comp 1033 or steel comp 1034 or steel comp 1035 or steel comp 1536 or steel comp 1037 or steel comp 1038 or steel comp 1039 or steel comp 1040 or steel comp 1541 overall
Details The chemical compound or mechanical mixture properties of which the item is fabricated.
Material Document And Classification
66 fed std all material responses overall
Details The specification, standard, or manufacturer's reference and the classification designation, such as class, condition, temper, and the like, that identifies the material.
Surface Treatment
zinc and chromate overall
Details The metallic,nonmetallic,and/or chemical properties with which the item is plated,dipped,and/or coated.the treatment is designed to protect the surface(s) and cannot be wiped off.
Surface Treatment Document And Classification
astm b633 ty 2 sc 3 assn std single treatment response overall
Details The specification,standard,or manufacturers reference,and the classification designation,such as type,class,grade,and the like,that identifies the surface treatment material.
Thread Series Designator
unc
Details A designation distinguishing one group of thread diameter-pitch combinations from another by the number of threads per measurement scale for a specific diameter.
Master-Cross Reference List
Part CAGE DAC HCC RNCC RNVC MSDS RNAAC
10082360 A486G 9 - 6 9 - WF
443603 D9182 6 - C 1 - ZZ
803-5959276-06 D9182 6 - C 1 - ZZ
MS90728-6 A9271 5 - 5 2 - ZR
5305000680508 A00AM 9 - 6 9 - YP
303842 H0G87 4 - 5 2 - ZN
5305PL0655495 9009H 9 - 6 9 - WP
907079 A274N 3 - 5 2 - ZG
000-8006-992 94756 5 - C 1 - KZ
22489R1 66195 5 - 5 2 - KZ
03-2-1333 15652 5 - 5 9 - KZ
803-5959276PC6 53711 6 - C 1 - ZZ
B1821BH025C075N 80204 E - 5 9 - KZ
S210NA38CAD14354BNCG1 80204 E - 5 9 - ZZ
22489R1 55820 A - 5 9 - KZ
91247A540 39428 E - C 1 - KZ
920073 07524 A - C 1 - HD
018945075 5N978 5 - C 1 - ZZ
12569621-6 19207 5 - 5 2 - ZZ
800-0533 44940 6 - 5 2 - CT
AES01C250750AW9A91 05047 E - 3 2 - ZZ
B18.24 05047 E - 5 1 - ZZ
1C817P63 07482 4 - 5 2 - ZY
306-40025 9F512 5 - C 1 - ZZ
M19-20873 PC NO 124 9F512 5 - C 1 - ZZ
M29-00288 PC NO 94 9F512 5 - C 1 - ZZ
803-007 08081 5 - C 1 - KZ
18257-003 21439 5 - 5 9 - KZ
803-007 72741 E - C 1 - KZ
903-007 72741 E - C 1 - KZ
418307-6 96214 5 - 5 2 - KE
73032 4C8A9 5 - C 1 - ZZ
2109HX1 45152 5 - 5 9 - KZ
2109HX1 75Q65 5 - 5 2 - ZZ
26-412 10988 2 - 5 2 - KZ
108940 40608 A - C 1 - AJ
60194 40608 A - C 1 - AJ
15A00404-0000 ITEM NO 83 01425 5 - C 1 - ZZ
15A00406-0000 I 01425 6 - C 1 - ZZ
50P01005-2011 01425 5 - C 1 - ZZ
MS90728-6 96906 4 - 5 9 - KZ
73032 63079 5 - 5 9 - ZZ
Material and Special Handling
Hazardous material, precious metals, criticality, and electrostatic discharge indicators.
HMIC PMIC ESD/EMI Criticality
N A - -
Freight
Universal / National Freight and Handling Information
UFC HMC LTL LCL
48950 - W -
RVC WCC TCC SHC
- 713 Z 9

Certified Supplier

Order with confidence. We are a valued certified supplier serving customers in the military and aerospace industries.

  • ISO9001 / AS9100 Quality Standards
  • HAZMAT Certified
  • On Time Delivery
  • Qualified sales team
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Manufacturer
EME ELEKTRO-METALL EXPORT GMBH
CAGE: D2638
INGOLSTADT , 85003
GERMANY
View Products
FAQs
Frequently asked questions for NSN 5305-00-068-0508
What is the NIIN of the NSN 5305-00-068-0508?
The National Item Identification Number (NIIN) of the NSN 5305-00-068-0508 is 00-068-0508
When the NSN 5305-00-068-0508 was assigned to the Federal Catalog?
It was assigned 61 years ago, on Tue, Jan 1, 1963
Does the NSN 5305-00-068-0508 contain any precious metals?
Does not contain precious metal
Does the NSN 5305-00-068-0508 contain any hazardous material?
No data in HMIRS

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