PartsTable TECHNICAL DATA SHEET

NSN 4820-01-379-9081Government record, cited

Disk, Valve4820-01-379-9081

NSN 4820-01-379-9081 · NIIN 013799081 · Part number 803-6397304-1A-5

Naval Sea Systems Command · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 53711

Government record, cited

NSN 4820-01-379-9081 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-379-9081. Manufacturer of record part number: 803-6397304-1A-5.

Also searched as 4820-01-379-9081 · 4820013799081 · NIIN 013799081 · 01-379-9081 · FSC 4820 Valves, Nonpowered · CAGE 53711 · 803-6397304-1A-5 · 6397304 · 803-6397304-XX-05

Nearby stock numbers ← 4820-01-379-9079 Valve, Regulating, Temperature · 4820-01-379-9085 Valve, Check →

4820-01-379-9081 — Valves, Nonpowered

Features

Disk,valve — FSC 4820
Pressure Rating: 6000.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS
Material: PLASTIC
2 manufacturer part numbers on file
Manufacturer of record: Naval Sea Systems Command

Identification

NSN: 4820-01-379-9081
NIIN: 013799081
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 803-6397304-1A-5
Manufacturer: Naval Sea Systems Command

General Description

The Disk,valve, cataloged under National Stock Number 4820-01-379-9081, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 12 items share a part number with this NSN in the catalog (possible match — not a government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	4820-01-379-9081
Primary Part Number	803-6397304-1A-5
Item Name	Disk,valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Naval Sea Systems Command
Status	ACTIVE
Pressure Rating	6000.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS
Material	PLASTIC

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 12

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

4820-01-493-6938803-6397304-2X-21 POSSIBLE MATCH

STEM,FLUID VALVE

Possible match (shared part number)Naval Sea Systems Command

4820-01-519-0932 POSSIBLE MATCH

STEM,FLUID VALVE

Possible match (shared part number)

4820-01-519-0935 POSSIBLE MATCH

DISK,VALVE

Possible match (shared part number)

5310-01-522-1238803-6397304-XX-29 POSSIBLE MATCH

WASHER,LOCK

Possible match (shared part number)Naval Sea Systems Command

4820-01-523-9548803-6397304-2A-05,21 POSSIBLE MATCH

STEM,FLUID VALVE

Possible match (shared part number)Naval Sea Systems Command

4820-01-523-9662803-6397304-2B-05,21 POSSIBLE MATCH

DISK,VALVE

Possible match (shared part number)Naval Sea Systems Command

4820-01-546-9207 POSSIBLE MATCH

VALVE,GLOBE

Possible match (shared part number)

4820-01-546-9214 POSSIBLE MATCH

STEM,FLUID VALVE

Possible match (shared part number)

4820-01-547-6664 POSSIBLE MATCH

RETAINER,DISK,VALVE

Possible match (shared part number)

4820-01-618-6787803-6397304-XX-32 POSSIBLE MATCH

DISK,VALVE

Possible match (shared part number)Naval Sea Systems Command

Cross-Reference Index

Part Number	Manufacturer
803-6397304-1A-5 PRIMARY	Naval Sea Systems Command (USA)
803-6397304-XX-05	Naval Sea Systems Command (USA)

Reference documents

Reference	Meaning
6397304	D/9 Drawing number reference only Naval Sea Systems Command

Related Parts

4820-01-493-6938POSSIBLE MATCH

STEM,FLUID VALVE

803-6397304-2X-21

4820-01-519-0932POSSIBLE MATCH

STEM,FLUID VALVE

4820-01-519-0935POSSIBLE MATCH

DISK,VALVE

5310-01-522-1238POSSIBLE MATCH

WASHER,LOCK

803-6397304-XX-29

4820-01-523-9548POSSIBLE MATCH

STEM,FLUID VALVE

803-6397304-2A-05,21

4820-01-523-9662POSSIBLE MATCH

DISK,VALVE

803-6397304-2B-05,21

4820-01-546-9207POSSIBLE MATCH

VALVE,GLOBE

4820-01-546-9214POSSIBLE MATCH

STEM,FLUID VALVE

4820-01-547-6664POSSIBLE MATCH

RETAINER,DISK,VALVE

4820-01-618-6787POSSIBLE MATCH

DISK,VALVE

803-6397304-XX-32

5310-01-725-1767POSSIBLE MATCH

NUT,PLAIN,CAP

803-6397304-XX-06

5330-01-725-1852POSSIBLE MATCH

BACK-UP RING,PREFORMED PACKING

AS8791/1-009

Frequently Asked Questions

What is NSN 4820-01-379-9081?

NSN 4820-01-379-9081 is a Disk,valve, manufactured by Naval Sea Systems Command, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-379-9081?

NSN 4820-01-379-9081 has 2 manufacturer part numbers on file: 803-6397304-1A-5 (Naval Sea Systems Command), 803-6397304-XX-05 (Naval Sea Systems Command).

What NSN replaces 4820-01-379-9081?

12 possible matches (shared part number, not a government interchangeability claim): 4820-01-493-6938, 4820-01-519-0932, 4820-01-519-0935. Verify interchangeability with system specifications before substitution.

What are the specifications of 803-6397304-1A-5?

Key specifications for 803-6397304-1A-5: Pressure Rating: 6000.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS; Material: PLASTIC. 2 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-379-9081 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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