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5305-01-078-1189

Hexagon Head Cap Screw

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Official Item Classification

Name
Hexagon Head Cap Screw
(NSN) National Stock Number
5305-01-078-1189
(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
06/09/1979 (47 years ago)

left-hand thread direction, 2.690 inches nominal fastener length, 2.500 inches nominal thread length, 3a thread class, hexagon head style

Specs & Compatibility

Thread Class

3a

Thread Direction

left-hand

Thread Length

2.500 inches nominal

Fastener Length

2.690 inches nominal

Head Style

hexagon

Head Height

0.310 inches nominal

Width Between Flats

0.562 inches nominal

End Item Identification

m1

Nominal Thread Diameter

0.375 inches

Thread Quantity Per Inch

32

Special Features

right hand thread5/16-32unef-3a

Material

steel comp 4130 overall

Thread Series Designator

unef

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
12282046 Hexagon Head Cap Screw
5305010781189 Hexagon Head Cap Screw

Frequently Asked Questions

What is the FSCG of the NSN 5305-01-078-1189?
The FSCG of the NSN 5305-01-078-1189 is 5305
Does the NSN 5305-01-078-1189 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5305-01-078-1189 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 5305-01-078-1189 contain precious materials?
Item does not contain precious metal.
Does NSN 5305-01-078-1189 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 5305-01-078-1189 was assigned to the Federal Catalog?
It was assigned 47 years ago, on Sat, Jun 9, 1979