Valve, Diaphragm, Stop4820-01-146-7922

NSN 4820-01-146-7922 · NIIN 011467922

FSC 4820 — Valves, Nonpowered · FSG 48 — Valves

Government record, cited

Also searched as 4820-01-146-7922 · 4820011467922 · NIIN 011467922 · 01-146-7922 · FSC 4820 Valves, Nonpowered · 88841 · 79777K · 79777 · 88841C

Nearby stock numbers ← 4820-01-146-7921 Valve, Safety Relief · 4820-01-146-7923 Valve, Ball →

4820-01-146-7922 — Valves, Nonpowered

Features

Valve,diaphragm,stop — FSC 4820
Connection Type: FLANGE ALL ENDS
Valve Size: 2.000 INCHES IN
Material: COPPER ALLOY BODY
Material: NICKEL ALLOY STEM

Identification

NSN: 4820-01-146-7922
NIIN: 011467922
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves

General Description

The Valve,diaphragm,stop, cataloged under National Stock Number 4820-01-146-7922, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 4 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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	4820-01-146-7922
Item Name	Valve,diaphragm,stop
FSC / FSG	4820 / 48 — Valves, Nonpowered
Status	ACTIVE
Connection Type	FLANGE ALL ENDS
Valve Size	2.000 INCHES IN
Material	COPPER ALLOY BODY
Material	NICKEL ALLOY STEM

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 1

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

6645-01-671-163688841 POSSIBLE MATCH

DASHPOT

Possible match (shared part number)Maney Aircraft, Inc. Dba Maney Aircraft

Cross-Reference Index

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

Reference documents

Reference	Meaning
88841	5/9 Secondary reference U.S. Government activity
79777K	D/9 Drawing number reference only U.S. Government activity
79777	5/9 Secondary reference U.S. Government activity
88841C	3/2 Design control — primary reference U.S. Government activity

Related Parts

6645-01-671-1636POSSIBLE MATCH

DASHPOT

88841

Frequently Asked Questions

What is NSN 4820-01-146-7922?

NSN 4820-01-146-7922 is a Valve,diaphragm,stop, classified under FSC 4820, Valves, Nonpowered. Status: active.

What NSN replaces 4820-01-146-7922?

1 possible match (shared part number, not a government interchangeability claim): 6645-01-671-1636. Verify interchangeability with system specifications before substitution.

What are the specifications of 4820-01-146-7922?

Key specifications for 4820-01-146-7922: Connection Type: FLANGE ALL ENDS; Valve Size: 2.000 INCHES IN; Material: COPPER ALLOY BODY; Material: NICKEL ALLOY STEM. 4 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-146-7922 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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