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5305-00-271-4662

Socket Head Cap Screw

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Official Item Classification

Name
Socket Head Cap Screw
(NSN) National Stock Number
5305-00-271-4662
(FSG) Federal Supply Group
53 Hardware and Abrasives
(FSC) Federal Supply Classification
5305 Screws
(INC) Item Name Code
16282
(FIIG) Federal Item Identification Guide
A003B0
Date
01/01/1960 (66 years ago)

3a thread class, flat chamfer head style, right-hand thread direction, 0.625 inches maximum thread length, 0.625 inches nominal fastener length

Specs & Compatibility

Thread Class

3a

Thread Direction

right-hand

Thread Length

0.625 inches maximum

Fastener Length

0.625 inches nominal

Head Style

flat chamfer

Head Diameter

0.337 inches minimum and 0.343 inches maximum

Head Height

0.211 inches minimum and 0.216 inches maximum

Internal Drive Style

hexagon

Nominal Thread Diameter

0.216 inches

Width Across Flats

0.156 inches minimum and 0.158 inches maximum

Thread Quantity Per Inch

24

Hardness Rating

36.0 rockwell c nominal overall

Minimum Yield Strength

140000 pounds per square inch

Material

steel comp 4135 or steel comp 4137 or steel comp 8640 overall

Material Document And Classification

qq-s-624 fed spec all material responses overall

Thread Series Designator

unc

Nondefinitive Spec/Std Data

1 type and 11 style

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.

Pseudo Item Name Code

0016282

Related Hardware Products

Part Number Description
196368PC3 Socket Head Cap Screw
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417475PC41 Socket Head Cap Screw

Frequently Asked Questions

What is the FSCG of the NSN 5305-00-271-4662?
The FSCG of the NSN 5305-00-271-4662 is 5305
Does the NSN 5305-00-271-4662 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5305-00-271-4662 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 5305-00-271-4662 contain precious materials?
Precious metal content is unknown
Does NSN 5305-00-271-4662 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 5305-00-271-4662 was assigned to the Federal Catalog?
It was assigned 66 years ago, on Fri, Jan 1, 1960