Piston, Valve4820-00-977-2934

NSN 4820-00-977-2934 · NIIN 009772934 · Part number BUWEPSDWG2526593

Alliant Techsystems Inc Marine Systems East · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 61923

Government record, cited

NSN 4820-00-977-2934 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-977-2934. Manufacturer of record part number: BUWEPSDWG2526593.

Also searched as 4820-00-977-2934 · 4820009772934 · NIIN 009772934 · 00-977-2934 · FSC 4820 Valves, Nonpowered · CAGE 61923 · BUWEPSDWG2526593 · 2526593

Nearby stock numbers ← 4820-00-977-2867 Valve, Torpedo · 4820-00-977-3004 →

4820-00-977-2934 — Valves, Nonpowered

Features

Piston,valve — FSC 4820
2 manufacturer part numbers on file
Manufacturer of record: Alliant Techsystems Inc Marine Systems East

Identification

NSN: 4820-00-977-2934
NIIN: 009772934
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: BUWEPSDWG2526593
Manufacturer: Alliant Techsystems Inc Marine Systems East

General Description

The Piston,valve, cataloged under National Stock Number 4820-00-977-2934, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Alliant Techsystems Inc Marine Systems East. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Catalog Facts

Item Name	Piston,valve
FSC / FSG	4820 — Valves, Nonpowered (FSG 48)
Manufacturers	Alliant Techsystems Inc Marine Systems East (CAGE 61923); Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (CAGE 10001)

Technical Specifications

Parameter	Value
NSN	4820-00-977-2934
Primary Part Number	BUWEPSDWG2526593
Item Name	Piston,valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Alliant Techsystems Inc Marine Systems East
Status	ACTIVE

Lifecycle & Compliance

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

Cross-Reference Index

Part Number	Manufacturer
BUWEPSDWG2526593 PRIMARY	Alliant Techsystems Inc Marine Systems East (USA)
2526593 PRIMARY	Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (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 4820-00-977-2934?

NSN 4820-00-977-2934 is a Piston,valve, manufactured by Alliant Techsystems Inc Marine Systems East, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-00-977-2934?

NSN 4820-00-977-2934 has 2 manufacturer part numbers on file: BUWEPSDWG2526593 (Alliant Techsystems Inc Marine Systems East), 2526593 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).

Is NSN 4820-00-977-2934 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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