NMP-1181 OPTION-

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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-270-6429

Item Name Code

05488

Assigment Date

01/11/1988 (38 years ago)

A part basically circular in shape, designed to cover or seal the filler-neck or inlet opening of a fuel tank, radiator, oil reservoir, liquid storage tank or the like. It may be either permanently attached to the object for which it is designed or provided with a means of removal and replacement. Excludes:cap, vent, fuel storage tank; and cover (1), (as modified).

socket (tube) all ends connection style, union bonnet attachment method, inside spring bonnet type, spring disk loading method, disk 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.

Flow Control Device: disk
Bonnet Type: inside spring
Bonnet Attachment Method: union
Disk Loading Method: spring
Connection Style: socket (tube) all ends
Valve Operation Method: automatic
Connection Type: unthreaded internal tube all ends
Adjustable Pressure Range: +92.0 to 107.0 pounds per square inch
Material: copper alloy body
Material: steel corrosion resisting flow control device
Material: steel corrosion resisting seat
Material: steel corrosion resisting stem
Media For Which Designed: water-oil-gas single response
Style Designator: angle

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
DA-40D 92T107PS	Safety Relief Valve
DA-40D 92T107PSI	Safety Relief Valve
DA-40D 92T107PSI, NMP1181DPT-1	Safety Relief Valve
NMP-1181	Safety Relief Valve
NMP-1181 OPTION-	Safety Relief Valve
NMP-1181 OPTION-1 92T107PSI	Safety Relief Valve
NMP118103G0100	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-01-270-6429?

The FSCG of the NSN 4820-01-270-6429 is 4820

Does the NSN 4820-01-270-6429 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-01-270-6429 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 4820-01-270-6429 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-270-6429 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 4820-01-270-6429 was assigned to the Federal Catalog?

It was assigned 38 years ago, on Mon, Jan 11, 1988