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259B3PP Check Valve

4820-00-974-0804

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Official Item Classification

Name
Check Valve
Part Number
259B3PP
(NSN) National Stock Number
4820-00-974-0804
(FSG) Federal Supply Group
48 Valves
(FSC) Federal Supply Classification
4820 Nonpowered Valves
(INC) Item Name Code
05487
(FIIG) Federal Item Identification Guide
A530B0
Date
01/01/1962 (64 years ago)

right-hand all ends thread direction, 300.0 fahrenheit single response maximum operating temp, poppet flow control device, plain, optional end (pipe) all ends connection style, spring disk loading method

Specs & Compatibility

Thread Direction

right-hand all ends

Flow Control Device

poppet

Disk Loading Method

spring

Maximum Operating Temp

300.0 fahrenheit single response

Connection Style

plain, optional end (pipe) all ends

Valve Operation Method

automatic

Connection Type

threaded internal pipe all ends

Mounting Position

horizontal or vertical

Maximum Operating Pressure

3000.0 pounds per square inch single response

Nominal Thread Size

0.375 inches all ends

Material

copper alloy overall

Media For Which Designed

water-oil-gas single response

Surface Treatment

copper alloy

Style Designator

straight thru

Thread Series Designator

nptf all ends

Regulatory Compliance

Precious Metals Indicator
U

Precious metal content is unknown

Criticality Code
X

The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.

Hazardous Metals Indicator
N

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

Pseudo Item Name Code

0005487

Related Hardware Products

Part Number Description
259B3PP Check Valve
A5402-6 Check Valve

Frequently Asked Questions

What is the FSCG of the NSN 4820-00-974-0804?
The FSCG of the NSN 4820-00-974-0804 is 4820
Does the NSN 4820-00-974-0804 have a Schedule B code assigned?
Yes, the Schedule B code is 8481301090
Does NSN 4820-00-974-0804 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 4820-00-974-0804 contain precious materials?
Precious metal content is unknown
Does NSN 4820-00-974-0804 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 4820-00-974-0804 was assigned to the Federal Catalog?
It was assigned 64 years ago, on Mon, Jan 1, 1962