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5305-01-413-8540

Hexagon Head Cap Screw

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Official Item Classification

Name
Hexagon Head Cap Screw
(NSN) National Stock Number
5305-01-413-8540
(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
05/24/1995 (31 years ago)

0.500 inches nominal thread length, right-hand thread direction, hexagon head style, 0.500 inches nominal fastener length, 2a thread class

Specs & Compatibility

Thread Class

2a

Thread Direction

right-hand

Thread Length

0.500 inches nominal

Fastener Length

0.500 inches nominal

Head Style

hexagon

Head Height

0.150 inches minimum and 0.163 inches maximum

Width Between Flats

0.428 inches minimum and 0.438 inches maximum

Hole Diameter

0.0605 inches minimum and 0.0685 inches maximum

Nominal Thread Diameter

0.250 inches

Hole Quantity

1

Hole Type

drilled

Thread Quantity Per Inch

20

Material

steel uns k04100 overall

Material Document And Classification

astm a354 assn std single material response overall

Surface Treatment

cadmium and chromate overall

Surface Treatment Document And Classification

qq-p-416, ty2 cl3 fed spec 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
B1821AH025C050D Hexagon Head Cap Screw

Frequently Asked Questions

What is the FSCG of the NSN 5305-01-413-8540?
The FSCG of the NSN 5305-01-413-8540 is 5305
Does the NSN 5305-01-413-8540 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5305-01-413-8540 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 5305-01-413-8540 contain precious materials?
Item does not contain precious metal.
Does NSN 5305-01-413-8540 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 5305-01-413-8540 was assigned to the Federal Catalog?
It was assigned 31 years ago, on Wed, May 24, 1995