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91255A108 Socket Head Cap Screw

5305-01-252-9159

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Official Item Classification

Name
Socket Head Cap Screw
Part Number
91255A108
(NSN) National Stock Number
5305-01-252-9159
(FSG) Federal Supply Group
53 Hardware and Abrasives
(FSC) Federal Supply Classification
5305 Screws
(INC) Item Name Code
16282
(FIIG) Federal Item Identification Guide
A003B0
Date
04/10/1987 (39 years ago)

right-hand thread direction, 2a thread class, 0.345 inches minimum and 0.375 inches maximum fastener length, button head style, 0.295 inches minimum and 0.375 inches maximum thread length

Specs & Compatibility

Thread Class

2a

Thread Direction

right-hand

Thread Length

0.295 inches minimum and 0.375 inches maximum

Fastener Length

0.345 inches minimum and 0.375 inches maximum

Head Style

button

Head Diameter

0.201 inches minimum and 0.213 inches maximum

Head Height

0.051 inches minimum and 0.059 inches maximum

Internal Drive Style

hexagon

Nominal Thread Diameter

0.112 inches

Width Across Flats

0.062 inches nominal

Thread Quantity Per Inch

40

Minimum Tensile Strength

170000 pounds per square inch

Hardness Rating

36.0 rockwell c minimum and 45.0 rockwell c maximum overall

Special Features

color black

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

Surface Treatment

oxide overall

Thread Series Designator

unc

Regulatory Compliance

Precious Metals Indicator
A

Item does not contain precious metal.

Criticality Code
X

The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.

Hazardous Metals Indicator
N

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

Pseudo Item Name Code

0016282

Related Hardware Products

Part Number Description
91255A108 Socket Head Cap Screw

Frequently Asked Questions

What is the FSCG of the NSN 5305-01-252-9159?
The FSCG of the NSN 5305-01-252-9159 is 5305
Does the NSN 5305-01-252-9159 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5305-01-252-9159 require demilitarization?
Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.
Does NSN 5305-01-252-9159 contain precious materials?
Item does not contain precious metal.
Does NSN 5305-01-252-9159 contain hazardous materials?
Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
When the NSN 5305-01-252-9159 was assigned to the Federal Catalog?
It was assigned 39 years ago, on Fri, Apr 10, 1987