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NSN 4820-01-497-3367Government record, cited

Cock, Drain4820-01-497-3367

NSN 4820-01-497-3367 · NIIN 014973367 · Part number 900-21541

L3harris Maritime Power & Energy Solutions, Inc · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 04801

Government record, cited

NSN 4820-01-497-3367 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-497-3367. Manufacturer of record part number: 900-21541.

Also searched as 4820-01-497-3367 · 4820014973367 · NIIN 014973367 · 01-497-3367 · FSC 4820 Valves, Nonpowered · CAGE 04801 · 900-21541 · 900-21700

Nearby stock numbers ← 4820-01-497-3236 Valve, Regulating, Fluid Pressure · 4820-01-497-3415 Cartridge, Check Valve →

4820-01-497-3367 — Valves, Nonpowered

Features

Cock,drain — FSC 4820
Style Designator: ANGLE
Valve Operation Method: MANUAL
1 manufacturer part number on file
Manufacturer of record: L3harris Maritime Power & Energy Solutions, Inc

Identification

NSN: 4820-01-497-3367
NIIN: 014973367
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 900-21541
Manufacturer: L3harris Maritime Power & Energy Solutions, Inc

General Description

The Cock,drain, cataloged under National Stock Number 4820-01-497-3367, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is L3harris Maritime Power & Energy Solutions, Inc. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4820-01-497-3367
Primary Part Number	900-21541
Item Name	Cock,drain
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	L3harris Maritime Power & Energy Solutions, Inc
Status	ACTIVE
Style Designator	ANGLE
Valve Operation Method	MANUAL

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

Cross-Reference Index

Part Number	Manufacturer
900-21541 PRIMARY	L3harris Maritime Power & Energy Solutions, Inc (USA)

Reference documents

Reference	Meaning
900-21700	D/9 Drawing number reference only L3harris Maritime Power & Energy Solutions, Inc

No interchangeability data on file.

Other items in FSC 4820 — Valves, Nonpowered

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

4820-00-000-0097

4820-00-000-0097 · Item name not on file

4820-00-001-0010

VALVE,ROTARY,SELECTOR

4820-00-001-0020

4820-00-001-0020 · Item name not on file

4820-00-001-0021

4820-00-001-0021 · Item name not on file

4820-00-001-0032

4820-00-001-0032 · Item name not on file

4820-00-001-0037

VALVE,SAFETY RELIEF

4820-00-001-0042

4820-00-001-0042 · Item name not on file

4820-00-001-1230

4820-00-001-1230 · Item name not on file

Frequently Asked Questions

What is NSN 4820-01-497-3367?

NSN 4820-01-497-3367 is a Cock,drain, manufactured by L3harris Maritime Power & Energy Solutions, Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-497-3367?

NSN 4820-01-497-3367 has 1 manufacturer part number on file: 900-21541 (L3harris Maritime Power & Energy Solutions, Inc).

What are the specifications of 900-21541?

Key specifications for 900-21541: Style Designator: ANGLE; Special Features: NHA 900-21700 REC; Part Name Assigned by Controlling Agency: DRAIN ASSY,RECTIF; End Item Identification: MISSILE SYSTEM, AEGIS SURFACE (SMS) MK7. 2 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-497-3367 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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