2176735

View detailed technical data, stock status, and sourcing information for: 2176735
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-521-3447

Item Name Code

06657

Assigment Date

01/01/1963 (63 years ago)

2a thread class, flat chamfer head style, 0.329 inches minimum thread length, right-hand thread direction, 0.375 inches nominal fastener length

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Thread Class: 2a
Thread Direction: right-hand
Thread Length: 0.329 inches minimum
Fastener Length: 0.375 inches nominal
Head Style: flat chamfer
Head Diameter: 0.203 inches nominal
Head Height: 0.125 inches nominal
Internal Drive Style: slot
Nominal Thread Diameter: 0.312 inches
Thread Quantity Per Inch: 24
Screw Material Document And Classification: qq-s-630 fed spec 1st material response or qq-s-631 fed spec 1st material response or qq-s-634 fed spec 1st material response or qq-s-630 fed spec 2nd material response or qq-s-631 fed spec 2nd material response or qq-s-634 fed spec 2nd material response or qq-s-633 fed spec 3rd material response or qq-s-633 fed spec 4th material response
Screw Surface Treatment: cadmium or zinc
Thread Series Designator: unf

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number	Name
2176735	Machine Screw
B85046	Machine Screw

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 5305-00-521-3447?

The FSCG of the NSN 5305-00-521-3447 is 5305

Does NSN 5305-00-521-3447 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 5305-00-521-3447 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-521-3447 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 5305-00-521-3447 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963