4820-01-279-2987

Find complete technical information, availability, and procurement data for: 4820-01-279-2987
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-279-2987

Item Name Code

16991

Assigment Date

05/16/1988 (38 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.

manual valve operation method, four-way four port 90 degree plug turn flow style, plain, optional end (pipe) all ends connection style, right-hand all ends thread direction, threaded internal pipe all ends connection type

Product Characteristics

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

Thread Direction: right-hand all ends
Flow Style: four-way four port 90 degree plug turn
Connection Style: plain, optional end (pipe) all ends
Valve Operation Method: manual
Connection Type: threaded internal pipe all ends
Nominal Thread Size: 0.500 inches all ends
Material: copper alloy body
Media For Which Designed: oil, hydraulic single response
Thread Series Designator: npt all ends

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
916-342	Plug Cock
EX-156	Plug Cock
NH-7274 PIECE 323	Plug Cock

FAQs

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

What is the FSCG of the NSN 4820-01-279-2987?

The FSCG of the NSN 4820-01-279-2987 is 4820

Does the NSN 4820-01-279-2987 have a Schedule B code assigned?

Yes, the Schedule B code is 8481909090

Does NSN 4820-01-279-2987 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 4820-01-279-2987 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-279-2987 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 4820-01-279-2987 was assigned to the Federal Catalog?

It was assigned 38 years ago, on Mon, May 16, 1988