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5305-01-727-8426

Hexagon Head Cap Screw

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Official Item Classification

Name
Hexagon Head Cap Screw
(NSN) National Stock Number
5305-01-727-8426
(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
03/20/2025 (1 year ago)

2a thread class, 1.500 inches nominal thread length, hexagon head style, right-hand thread direction, 2.250 inches nominal fastener length

Specs & Compatibility

Thread Class

2a

Thread Direction

right-hand

Thread Length

1.500 inches nominal

Fastener Length

2.250 inches nominal

Head Style

hexagon

Head Height

0.378 inches minimum and 0.403 inches maximum

Width Between Flats

0.922 inches minimum and 0.938 inches maximum

Locking Feature

self-locking locking feature

Nominal Thread Diameter

0.625 inches

Thread Quantity Per Inch

11

Minimum Tensile Strength

150000 pounds per square inch

Hardness Rating

32.0 rockwell c minimum and 39.0 rockwell c maximum fastener

Part Name Assigned By Controlling Agency

hex cap screw

Special Features

locking feature in accordance with mil-f-8961 or mil-dtl-18240

Material

steel fastener

Material Document And Classification

astm a354,grade 8/grade bd american society for testing and materials (astm) single material response fastener

Thread Series Designator

unc

Specification/Standard Data

81349-mil-dtl-1222j government specification

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

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Frequently Asked Questions

What is the FSCG of the NSN 5305-01-727-8426?
The FSCG of the NSN 5305-01-727-8426 is 5305
Does the NSN 5305-01-727-8426 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5305-01-727-8426 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 5305-01-727-8426 contain precious materials?
Item does not contain precious metal.
Does NSN 5305-01-727-8426 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 5305-01-727-8426 was assigned to the Federal Catalog?
It was assigned 1 year ago, on Thu, Mar 20, 2025