PartsTable TECHNICAL DATA SHEET

NSN 4820-01-443-4815Government record, cited

Retainer, Seat, Valve4820-01-443-4815

NSN 4820-01-443-4815 · NIIN 014434815

FSC 4820 — Valves, Nonpowered · FSG 48 — Valves

Government record, cited

Also searched as 4820-01-443-4815 · 4820014434815 · NIIN 014434815 · 01-443-4815 · FSC 4820 Valves, Nonpowered · 284046-0002 · 284046-0002-21 · 195808-0016

Nearby stock numbers ← 4820-01-443-4737 Valve Water Dump · 4820-01-443-4817 Retainer, Seat, Valve →

4820-01-443-4815 — Valves, Nonpowered

Features

Retainer,seat,valve — FSC 4820

Identification

NSN: 4820-01-443-4815
NIIN: 014434815
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves

General Description

The Retainer,seat,valve, cataloged under National Stock Number 4820-01-443-4815, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.

Catalog Facts

Item Name	Retainer,seat,valve
FSC / FSG	4820 — Valves, Nonpowered (FSG 48)

Technical Specifications

Parameter	Value
NSN	4820-01-443-4815
Item Name	Retainer,seat,valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Status	ACTIVE

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 6

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

4820-01-443-4817195806-0063 POSSIBLE MATCH

RETAINER,SEAT,VALVE

Possible match (shared part number)Marotta Controls Inc

4820-01-443-4826195805-0063 POSSIBLE MATCH

STEM,FLUID VALVE

Possible match (shared part number)Marotta Controls Inc

4820-01-443-5020195809-0733 POSSIBLE MATCH

SEAT,VALVE

Possible match (shared part number)Marotta Controls Inc

4820-01-443-88764050101-0032 POSSIBLE MATCH

BALL,CHECK

Possible match (shared part number)Marotta Controls Inc

5305-01-467-60744201811-1102 POSSIBLE MATCH

SCREW,CAP,SOCKET HEAD

Possible match (shared part number)Marotta Controls Inc

4820-01-677-3091196762 POSSIBLE MATCH

CAP,VALVE

Possible match (shared part number)Marotta Controls Inc

Cross-Reference Index

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

Reference documents

Reference	Meaning
284046-0002	D/9 Drawing number reference only U.S. Government activity
284046-0002-21	5/2 Secondary reference U.S. Government activity
195808-0016	3/2 Design control — primary reference U.S. Government activity

Related Parts

4820-01-443-4817POSSIBLE MATCH

RETAINER,SEAT,VALVE

195806-0063

4820-01-443-4826POSSIBLE MATCH

STEM,FLUID VALVE

195805-0063

4820-01-443-5020POSSIBLE MATCH

SEAT,VALVE

195809-0733

4820-01-443-8876POSSIBLE MATCH

BALL,CHECK

4050101-0032

5305-01-467-6074POSSIBLE MATCH

SCREW,CAP,SOCKET HEAD

4201811-1102

4820-01-677-3091POSSIBLE MATCH

CAP,VALVE

196762

Frequently Asked Questions

What is NSN 4820-01-443-4815?

NSN 4820-01-443-4815 is a Retainer,seat,valve, classified under FSC 4820, Valves, Nonpowered. Status: active.

What NSN replaces 4820-01-443-4815?

6 possible matches (shared part number, not a government interchangeability claim): 4820-01-443-4817, 4820-01-443-4826, 4820-01-443-5020. Verify interchangeability with system specifications before substitution.

Is NSN 4820-01-443-4815 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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