5305-01-249-7631

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Machine Screw

Specifications, compliance details, and sourcing options for this NSN. Request a quote to confirm availability, pricing, and lead time.

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Official Item Classification

Name: Machine Screw
(NSN) National Stock Number: 5305-01-249-7631
(FSG) Federal Supply Group: 53 Hardware and Abrasives
(FSC) Federal Supply Classification: 5305 Screws
(INC) Item Name Code: 06657
(FIIG) Federal Item Identification Guide: A500D0
Date: 02/16/1987 (39 years ago)

2a thread class, right-hand thread direction, 1.190 inches minimum and 1.250 inches maximum fastener length, 1.015 inches minimum and 1.175 inches maximum thread length, flat countersunk head style

Specs & Compatibility

Thread Class

Thread Direction

right-hand

Thread Length

1.015 inches minimum and 1.175 inches maximum

Fastener Length

1.190 inches minimum and 1.250 inches maximum

Head Style

flat countersunk

Head Diameter

0.452 inches minimum and 0.507 inches maximum

Internal Drive Style

slot

Nominal Thread Diameter

0.250 inches

Thread Quantity Per Inch

Minimum Tensile Strength

80000 pounds per square inch

Countersink Angle

80.0 degrees minimum and 82.0 degrees maximum

Screw Material

nickel alloy 400

Screw Material Document And Classification

qq-n-281,cl a fed spec single material response

Thread Series Designator

unc

Regulatory Compliance

Precious Metals Indicator

Item does not contain precious metal.

Criticality Code

The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.

Hazardous Metals Indicator

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

0006657

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Frequently Asked Questions

What is the FSCG of the NSN 5305-01-249-7631?

The FSCG of the NSN 5305-01-249-7631 is 5305

Does the NSN 5305-01-249-7631 have a Schedule B code assigned?

Yes, the Schedule B code is 7508900000

Does NSN 5305-01-249-7631 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 5305-01-249-7631 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-249-7631 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 5305-01-249-7631 was assigned to the Federal Catalog?

It was assigned 39 years ago, on Mon, Feb 16, 1987