PartsTable TECHNICAL DATA SHEET

NSN 4820-01-296-2491Government record, cited

Piston, Valve4820-01-296-2491

NSN 4820-01-296-2491 · NIIN 012962491

FSC 4820 — Valves, Nonpowered · FSG 48 — Valves

Government record, cited

Also searched as 4820-01-296-2491 · 4820012962491 · NIIN 012962491 · 01-296-2491 · FSC 4820 Valves, Nonpowered · 33854 · X87600 ITEM 68-27-A · 033817 · X87600 ITEM 64-8-B

Nearby stock numbers ← 4820-01-296-2489 Cap, Valve · 4820-01-296-2511 →

4820-01-296-2491 — Valves, Nonpowered

Features

Piston,valve — FSC 4820
Material: STEEL COMP 303

Identification

NSN: 4820-01-296-2491
NIIN: 012962491
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves

General Description

The Piston,valve, cataloged under National Stock Number 4820-01-296-2491, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4820-01-296-2491
Item Name	Piston,valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Status	ACTIVE
Material	STEEL COMP 303

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

⇄ Related Items 3

Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.

5360-01-312-0154 POSSIBLE MATCH

SPRING,HELICAL,COMPRESSION

Possible match (shared part number)

4140-01-398-1631033817 POSSIBLE MATCH

BLOWER,EXHAUST

Possible match (shared part number)Rotron Incorporated

1005-01-664-640133854 POSSIBLE MATCH

HOUSING,TRIGGER

Possible match (shared part number)Glock, Inc.

Cross-Reference Index

No manufacturer part numbers on file in the U.S. Government catalog.

Reference documents

Reference	Meaning
33854	5/9 Secondary reference U.S. Government activity
X87600 ITEM 68-27-A	5/9 Secondary reference U.S. Government activity
033817	3/9 Design control — primary reference U.S. Government activity
X87600 ITEM 64-8-B	5/9 Secondary reference U.S. Government activity

Related Parts

5360-01-312-0154POSSIBLE MATCH

SPRING,HELICAL,COMPRESSION

4140-01-398-1631POSSIBLE MATCH

BLOWER,EXHAUST

033817

1005-01-664-6401POSSIBLE MATCH

HOUSING,TRIGGER

33854

Frequently Asked Questions

What is NSN 4820-01-296-2491?

NSN 4820-01-296-2491 is a Piston,valve, classified under FSC 4820, Valves, Nonpowered. Status: active.

What NSN replaces 4820-01-296-2491?

3 possible matches (shared part number, not a government interchangeability claim): 5360-01-312-0154, 4140-01-398-1631, 1005-01-664-6401. Verify interchangeability with system specifications before substitution.

What are the specifications of 4820-01-296-2491?

Key specifications for 4820-01-296-2491: End Item Identification: COPES-VULCAN INC MODEL NO. TN30, MARK 1A RETRACTOR SOOT BLOWER A; Material: STEEL COMP 303. 1 specification is documented in the U.S. Government catalog.

Is NSN 4820-01-296-2491 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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