038-1140-00-0

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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-228-1028

Item Name Code

16988

Assigment Date

03/14/1986 (40 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.

plain (pipe) all ends connection style, threaded external pipe all ends connection type, right-hand all ends thread direction, manual valve operation method, stem flow control device

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 Control Device: stem
Connection Style: plain (pipe) all ends
Valve Operation Method: manual
Connection Type: threaded external pipe all ends
Nominal Thread Size: 0.125 inches all ends
Material: copper alloy overall
Style Designator: straight thru
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
038-1140-00-0	Drain Cock

FAQs

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

What is the FSCG of the NSN 4820-01-228-1028?

The FSCG of the NSN 4820-01-228-1028 is 4820

Does the NSN 4820-01-228-1028 have a Schedule B code assigned?

Yes, the Schedule B code is 8481909090

Does NSN 4820-01-228-1028 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 4820-01-228-1028 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-228-1028 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 4820-01-228-1028 was assigned to the Federal Catalog?

It was assigned 40 years ago, on Fri, Mar 14, 1986