5305-01-439-8121

Find complete technical information, availability, and procurement data for: 5305-01-439-8121
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-439-8121

Item Name Code

06657

Assigment Date

12/19/1996 (29 years ago)

A valve designed to relieve internal pressure from gear housings, automotive axles, differentials, transmissions and the like. May or may not be threaded on one end. For items with relief pressure ratings see valve (1), safety relief.

right-hand thread direction, pan no. 2 head style, patch or pellet locking feature, 0.500 inches nominal fastener length, 2a thread class

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
Fastener Length: 0.500 inches nominal
Head Style: pan no. 2
Locking Feature: patch or pellet
Internal Drive Style: cross recess type 1
Nominal Thread Diameter: 0.190 inches
Thread Quantity Per Inch: 24
Screw Material: steel corrosion resisting
Thread Series Designator: unc

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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:

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6406593-MTPD-B25	Machine Screw
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FAQs

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

What is the FSCG of the NSN 5305-01-439-8121?

The FSCG of the NSN 5305-01-439-8121 is 5305

Does the NSN 5305-01-439-8121 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-439-8121 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 5305-01-439-8121 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-439-8121 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 5305-01-439-8121 was assigned to the Federal Catalog?

It was assigned 29 years ago, on Thu, Dec 19, 1996