6634436-001

View detailed technical data, stock status, and sourcing information for: 6634436-001
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-817-6139

Item Name Code

06672

Assigment Date

01/01/1962 (64 years ago)

3a thread class, headless (setscrew) head style, right-hand thread direction, 0.250 inches maximum thread length, 0.250 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: 3a
Thread Direction: right-hand
Thread Length: 0.250 inches maximum
Fastener Length: 0.250 inches nominal
Head Style: headless (setscrew)
Point Style: cup
Internal Drive Style: hexagon
Nominal Thread Diameter: 0.250 inches
Width Across Flats: 0.125 inches nominal
Thread Quantity Per Inch: 20
Material: steel comp 302 or steel comp 303 or steel comp 304 or steel comp 316 overall
Material Document And Classification: 66 fed std all material responses overall
Surface Treatment: passivate overall
Surface Treatment Document And Classification: qq-p-35 fed spec single treatment response overall
Thread Series Designator: unc
Nondefinitive Spec/Std Data: 1 type and 4 style

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5305-00-619-6427	No Name Available	12/01/1982
5305-00-838-7466	No Name Available	04/20/1967
5305-00-885-9811	No Name Available	11/01/1982

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
003-07941-056	Setscrew
01-435-0403-4 ITEM 143	Setscrew
20-140C4	Setscrew
5305PL1336637	Setscrew
6634436-001	Setscrew
83-44	Setscrew
H81-1/4-20 X 4	Setscrew
MS51021-56	Setscrew

FAQs

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

What is the FSCG of the NSN 5305-00-817-6139?

The FSCG of the NSN 5305-00-817-6139 is 5305

Does the NSN 5305-00-817-6139 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-817-6139 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 5305-00-817-6139 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-00-817-6139 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 5305-00-817-6139 was assigned to the Federal Catalog?

It was assigned 64 years ago, on Mon, Jan 1, 1962