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5305-01-423-4735

Hexagon Head Cap Screw

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Official Item Classification

Name
Hexagon Head Cap Screw
(NSN) National Stock Number
5305-01-423-4735
(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
12/28/1995 (30 years ago)

0.594 inches minimum and 0.625 inches maximum fastener length, right-hand thread direction, 2a thread class, hexagon head style, 0.398 inches maximum thread length

Specs & Compatibility

Thread Class

2a

Thread Direction

right-hand

Thread Length

0.398 inches maximum

Fastener Length

0.594 inches minimum and 0.625 inches maximum

Head Style

hexagon

Head Height

0.378 inches minimum and 0.403 inches maximum

Width Between Flats

0.922 inches minimum and 0.937 inches maximum

Nominal Thread Diameter

0.625 inches

Thread Quantity Per Inch

11

Special Features

cres comp 316 only

Material

steel comp 316 overall

Material Document And Classification

ff-s-85 fed spec single material response overall

Surface Treatment

passivate overall

Surface Treatment Document And Classification

ff-s-85 fed spec single treatment response overall

Thread Series Designator

unc

Departure From Cited Document

as modified by material

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
MS35307-455 Hexagon Head Cap Screw
MS35307-455 CRE S 316 ONLY Hexagon Head Cap Screw
MS35307-455S316 Hexagon Head Cap Screw

Frequently Asked Questions

What is the FSCG of the NSN 5305-01-423-4735?
The FSCG of the NSN 5305-01-423-4735 is 5305
Does the NSN 5305-01-423-4735 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5305-01-423-4735 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 5305-01-423-4735 contain precious materials?
Item does not contain precious metal.
Does NSN 5305-01-423-4735 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 5305-01-423-4735 was assigned to the Federal Catalog?
It was assigned 30 years ago, on Thu, Dec 28, 1995