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12998 Socket Head Cap Screw

5305-01-007-1321

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Official Item Classification

Name
Socket Head Cap Screw
Part Number
12998
(NSN) National Stock Number
5305-01-007-1321
(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
07/31/1975 (51 years ago)

0.303 inches minimum and 0.312 inches maximum head diameter, flat chamfer head style, 0.375 inches nominal fastener length, 2a thread class, 0.313 inches minimum and 0.375 inches maximum thread length

Specs & Compatibility

Thread Class

2a

Thread Length

0.313 inches minimum and 0.375 inches maximum

Fastener Length

0.375 inches nominal

Head Style

flat chamfer

Head Diameter

0.303 inches minimum and 0.312 inches maximum

Head Height

0.185 inches minimum and 0.190 inches maximum

Internal Drive Style

hexagon

Nominal Thread Diameter

0.190 inches

Width Across Flats

0.156 inches nominal

Thread Quantity Per Inch

32

Thread Series Designator

unf

Regulatory Compliance

Precious Metals Indicator
U

Precious metal content is unknown

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
12998 Socket Head Cap Screw

Frequently Asked Questions

What is the FSCG of the NSN 5305-01-007-1321?
The FSCG of the NSN 5305-01-007-1321 is 5305
Does NSN 5305-01-007-1321 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 5305-01-007-1321 contain precious materials?
Precious metal content is unknown
Does NSN 5305-01-007-1321 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 5305-01-007-1321 was assigned to the Federal Catalog?
It was assigned 51 years ago, on Thu, Jul 31, 1975