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5305-01-508-0854

Hexagon Head Cap Screw

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Official Item Classification

Name
Hexagon Head Cap Screw
(NSN) National Stock Number
5305-01-508-0854
(FSG) Federal Supply Group
53 Hardware and Abrasives
(FSC) Federal Supply Classification
5305 Screws
(INC) Item Name Code
18257
(FIIG) Federal Item Identification Guide
A003B0
Date
05/12/2003 (23 years ago)

right-hand thread direction, 2a thread class, 1.880 inches nominal fastener length, hexagon head style, 1.250 inches nominal thread length

Specs & Compatibility

Thread Class

2a

Thread Direction

right-hand

Thread Length

1.250 inches nominal

Fastener Length

1.880 inches nominal

Head Style

hexagon

Head Height

0.302 inches minimum and 0.323 inches maximum

Width Between Flats

0.736 inches minimum and 0.750 inches maximum

End Item Identification

2350-01-087-1095

Nominal Thread Diameter

0.500 inches

Thread Quantity Per Inch

13

Color

bronze or olive drab or yellow overall

Material

steel overall

Material Document And Classification

astma 354, sae gr 8 assn std single material response overall

Surface Treatment

zinc and chromate overall

Surface Treatment Document And Classification

astm b633, fe/zn5 or fe/zn8 assn std single treatment response 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

0018257

Related Hardware Products

Part Number Description
B1821BH050C188N Hexagon Head Cap Screw

Frequently Asked Questions

What is the FSCG of the NSN 5305-01-508-0854?
The FSCG of the NSN 5305-01-508-0854 is 5305
Does the NSN 5305-01-508-0854 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5305-01-508-0854 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 5305-01-508-0854 contain precious materials?
Item does not contain precious metal.
Does NSN 5305-01-508-0854 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 5305-01-508-0854 was assigned to the Federal Catalog?
It was assigned 23 years ago, on Mon, May 12, 2003