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5305-00-021-5920

Hexagon Head Cap Screw

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Official Item Classification

Name
Hexagon Head Cap Screw
(NSN) National Stock Number
5305-00-021-5920
(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
01/01/1963 (63 years ago)

hexagon head style, 1.969 inches minimum and 2.031 inches maximum fastener length, 2a thread class, 1.500 inches minimum and 1.688 inches maximum thread length, right-hand thread direction

Specs & Compatibility

Thread Class

2a

Thread Direction

right-hand

Thread Length

1.500 inches minimum and 1.688 inches maximum

Fastener Length

1.969 inches minimum and 2.031 inches maximum

Head Style

hexagon

Head Height

0.456 inches minimum and 0.481 inches maximum

Width Between Flats

0.860 inches minimum and 0.875 inches maximum

Nominal Thread Diameter

0.625 inches

Thread Quantity Per Inch

18

Minimum Yield Strength

60000 pounds per square inch

Material

steel overall

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.

Source of Supply Code

S9I

Pseudo Item Name Code

0018257

Frequently Asked Questions

What is the FSCG of the NSN 5305-00-021-5920?
The FSCG of the NSN 5305-00-021-5920 is 5305
Does the NSN 5305-00-021-5920 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5305-00-021-5920 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 5305-00-021-5920 contain precious materials?
Precious metal content is unknown
Does NSN 5305-00-021-5920 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 5305-00-021-5920 was assigned to the Federal Catalog?
It was assigned 63 years ago, on Tue, Jan 1, 1963