Disk, Valve4820-01-559-8831

NSN 4820-01-559-8831 · NIIN 015598831

FSC 4820 — Valves, Nonpowered · FSG 48 — Valves

Government record, cited

Also searched as 4820-01-559-8831 · 4820015598831 · NIIN 015598831 · 01-559-8831 · FSC 4820 Valves, Nonpowered · 1385711 · 803-1385711-XX-23

Nearby stock numbers ← 4820-01-559-8781 Valve, Relief, Pressure and Temper · 4820-01-559-8834 Parts Kit, Linear Directional Con →

4820-01-559-8831 — Valves, Nonpowered

Features

Disk,valve — FSC 4820
Temp Rating: 200.0 FAHRENHEIT MAXIMUM DEGF
Outside Diameter: 2.000 INCHES NOMINAL IN
Style Designator: PLAIN
Material Document and Classification: MIL-R-6855, CL 1. GR 70 OR 80 MIL SPEC SINGLE MATERIAL RESPONSE
Inside Diameter: 0.968 INCHES NOMINAL IN
Material: RUBBER

Identification

NSN: 4820-01-559-8831
NIIN: 015598831
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves

General Description

The Disk,valve, cataloged under National Stock Number 4820-01-559-8831, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 6 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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	4820-01-559-8831
Item Name	Disk,valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Status	ACTIVE
Temp Rating	200.0 FAHRENHEIT MAXIMUM DEGF
Outside Diameter	2.000 INCHES NOMINAL IN
Style Designator	PLAIN
Material Document and Classification	MIL-R-6855, CL 1. GR 70 OR 80 MIL SPEC SINGLE MATERIAL RESPONSE
Inside Diameter	0.968 INCHES NOMINAL IN
Material	RUBBER

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.

5962-01-693-4906138571-1 POSSIBLE MATCH

DUAL CHANNEL

Possible match (shared part number)Lockheed Martin Corp

Cross-Reference Index

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

Reference documents

Reference	Meaning
1385711	D/9 Drawing number reference only U.S. Government activity
803-1385711-XX-23	3/2 Design control — primary reference U.S. Government activity

Related Parts

5962-01-693-4906POSSIBLE MATCH

DUAL CHANNEL

138571-1

Frequently Asked Questions

What is NSN 4820-01-559-8831?

NSN 4820-01-559-8831 is a Disk,valve, classified under FSC 4820, Valves, Nonpowered. Status: active.

What NSN replaces 4820-01-559-8831?

1 possible match (shared part number, not a government interchangeability claim): 5962-01-693-4906. Verify interchangeability with system specifications before substitution.

What are the specifications of 4820-01-559-8831?

Key specifications for 4820-01-559-8831: Overall Height: 0.375 INCHES NOMINAL IN; Temp Rating: 200.0 FAHRENHEIT MAXIMUM DEGF; Outside Diameter: 2.000 INCHES NOMINAL IN; Style Designator: PLAIN. 6 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-559-8831 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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