Retainer, Disk, Valve4820-01-121-8689

NSN 4820-01-121-8689 · NIIN 011218689

FSC 4820 — Valves, Nonpowered · FSG 48 — Valves

Government record, cited

Also searched as 4820-01-121-8689 · 4820011218689 · NIIN 011218689 · 01-121-8689 · FSC 4820 Valves, Nonpowered · 87941B · 82379 PIECE 7 5IN · 87941 · 82379PC7

Nearby stock numbers ← 4820-01-121-8688 Bumper, Valve · 4820-01-121-8705 →

4820-01-121-8689 — Valves, Nonpowered

Features

Retainer,disk,valve — FSC 4820
Outside Diameter: 6.190 INCHES NOMINAL IN
Material: COPPER ALLOY

Identification

NSN: 4820-01-121-8689
NIIN: 011218689
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves

General Description

The Retainer,disk,valve, cataloged under National Stock Number 4820-01-121-8689, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 2 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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	4820-01-121-8689
Item Name	Retainer,disk,valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Status	ACTIVE
Outside Diameter	6.190 INCHES NOMINAL IN
Material	COPPER ALLOY

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 2

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

5930-01-602-471523281009 POSSIBLE MATCH

SWITCH,PUSH-PULL

Possible match (shared part number)Clark Equipment Co Div Doosan Infracore Portable Power

5930-01-678-726087941 POSSIBLE MATCH

SWITCH,PUSH

Possible match (shared part number)Honeywell International Inc Dba Honeywell International Div Aerospace Golden Valley (advanced Technology)

Cross-Reference Index

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

Reference documents

Reference	Meaning
87941B	3/2 Design control — primary reference U.S. Government activity
82379 PIECE 7 5IN	5/9 Secondary reference U.S. Government activity
87941	5/9 Secondary reference U.S. Government activity
82379PC7	5/9 Secondary reference U.S. Government activity

Related Parts

5930-01-602-4715POSSIBLE MATCH

SWITCH,PUSH-PULL

23281009

5930-01-678-7260POSSIBLE MATCH

SWITCH,PUSH

87941

Frequently Asked Questions

What is NSN 4820-01-121-8689?

NSN 4820-01-121-8689 is a Retainer,disk,valve, classified under FSC 4820, Valves, Nonpowered. Status: active.

What NSN replaces 4820-01-121-8689?

2 possible matches (shared part number, not a government interchangeability claim): 5930-01-602-4715, 5930-01-678-7260. Verify interchangeability with system specifications before substitution.

What are the specifications of 4820-01-121-8689?

Key specifications for 4820-01-121-8689: Outside Diameter: 6.190 INCHES NOMINAL IN; Overall Length: 1.312 INCHES NOMINAL IN; Material: COPPER ALLOY. 2 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-121-8689 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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