Ring, Valve Piston4820-01-644-5281

NSN 4820-01-644-5281 · NIIN 016445281 · Part number 11582981

Us Army Benet Laboratories Rdar-Wsb-O · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 1NUW7

Government record, cited

NSN 4820-01-644-5281 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-644-5281. Manufacturer of record part number: 11582981.

Also searched as 4820-01-644-5281 · 4820016445281 · NIIN 016445281 · 01-644-5281 · FSC 4820 Valves, Nonpowered · CAGE 1NUW7 · 11582981

Nearby stock numbers ← 4820-01-644-5269 Guide, Valve Stem · 4820-01-644-5464 Valve, Linear, Directional Control →

4820-01-644-5281 — Valves, Nonpowered

Features

Ring,valve Piston — FSC 4820
1 manufacturer part number on file
Manufacturer of record: Us Army Benet Laboratories Rdar-Wsb-O

Identification

NSN: 4820-01-644-5281
NIIN: 016445281
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 11582981
Manufacturer: Us Army Benet Laboratories Rdar-Wsb-O

General Description

The Ring,valve Piston, cataloged under National Stock Number 4820-01-644-5281, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Us Army Benet Laboratories Rdar-Wsb-O. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Catalog Facts

Item Name	Ring,valve Piston
FSC / FSG	4820 — Valves, Nonpowered (FSG 48)
Manufacturers	Us Army Benet Laboratories Rdar-Wsb-O (CAGE 1NUW7)

Technical Specifications

Parameter	Value
NSN	4820-01-644-5281
Primary Part Number	11582981
Item Name	Ring,valve Piston
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Us Army Benet Laboratories Rdar-Wsb-O
Status	ACTIVE

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	No hazard code in the DLA record (HMIC N)
Criticality Code	X

Cross-Reference Index

Part Number	Manufacturer
11582981 PRIMARY	Us Army Benet Laboratories Rdar-Wsb-O (USA)

No interchangeability data on file.

Other items in FSC 4820 — Valves, Nonpowered

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

4820-00-000-0097

4820-00-000-0097 · Item name not on file

4820-00-001-0010

VALVE,ROTARY,SELECTOR

4820-00-001-0020

4820-00-001-0020 · Item name not on file

4820-00-001-0021

4820-00-001-0021 · Item name not on file

4820-00-001-0032

4820-00-001-0032 · Item name not on file

4820-00-001-0037

VALVE,SAFETY RELIEF

4820-00-001-0042

4820-00-001-0042 · Item name not on file

4820-00-001-1230

4820-00-001-1230 · Item name not on file

Frequently Asked Questions

What is NSN 4820-01-644-5281?

NSN 4820-01-644-5281 is a Ring,valve Piston, manufactured by Us Army Benet Laboratories Rdar-Wsb-O, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-644-5281?

NSN 4820-01-644-5281 has 1 manufacturer part number on file: 11582981 (Us Army Benet Laboratories Rdar-Wsb-O).

Is NSN 4820-01-644-5281 hazardous material?

No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.

Sources

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.

✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.

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