4820-00-142-1321

Find complete technical information, availability, and procurement data for: 4820-00-142-1321
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-142-1321

Item Name Code

35935

Assigment Date

01/01/1963 (63 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 1st end thread direction, threaded external pipe 1st end connection type, plain (pipe) 1st end connection style, 0.250 inches 1st end nominal pipe size accommodated, 0.250 inches 1st end nominal thread size

Product Characteristics

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

Nominal Pipe Size Accommodated: 0.250 inches 1st end
Thread Direction: right-hand 1st end
Connection Style: plain (pipe) 1st end
Connection Type: threaded external pipe 1st end
Nominal Thread Size: 0.250 inches 1st end
Special Features: valve closed above 6.856 psi pressure
Material: steel overall
Style Designator: angle
Thread Series Designator: npt 1st end

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
1543111	Vent Valve

FAQs

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

What is the FSCG of the NSN 4820-00-142-1321?

The FSCG of the NSN 4820-00-142-1321 is 4820

Does the NSN 4820-00-142-1321 have a Schedule B code assigned?

Yes, the Schedule B code is 8481809050

Does NSN 4820-00-142-1321 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 4820-00-142-1321 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-142-1321 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 4820-00-142-1321 was assigned to the Federal Catalog?

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