Valve, Exhaust Control4820-01-633-8771

NSN 4820-01-633-8771 · NIIN 016338771 · Part number NP-2201-0004A

Lawrence Factor, Inc. Dba Lawrence Factor Inc · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 0R763

Government record, cited

NSN 4820-01-633-8771 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-633-8771. Manufacturer of record part number: NP-2201-0004A.

Also searched as 4820-01-633-8771 · 4820016338771 · NIIN 016338771 · 01-633-8771 · FSC 4820 Valves, Nonpowered · CAGE 0R763 · NP-2201-0004A

Nearby stock numbers ← 4820-01-633-8754 Stem, Fluid Valve · 4820-01-633-8775 Retainer, Seat, Valve →

4820-01-633-8771 — Valves, Nonpowered

Features

Valve,exhaust Control — FSC 4820
1 manufacturer part number on file
Manufacturer of record: Lawrence Factor, Inc. Dba Lawrence Factor Inc

Identification

NSN: 4820-01-633-8771
NIIN: 016338771
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: NP-2201-0004A
Manufacturer: Lawrence Factor, Inc. Dba Lawrence Factor Inc

General Description

The Valve,exhaust Control, cataloged under National Stock Number 4820-01-633-8771, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Lawrence Factor, Inc. Dba Lawrence Factor Inc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4820-01-633-8771
Primary Part Number	NP-2201-0004A
Item Name	Valve,exhaust Control
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Lawrence Factor, Inc. Dba Lawrence Factor Inc
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

Cross-Reference Index

Part Number	Manufacturer
NP-2201-0004A PRIMARY	Lawrence Factor, Inc. Dba Lawrence Factor Inc (USA)

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 4820-01-633-8771?

NSN 4820-01-633-8771 is a Valve,exhaust Control, manufactured by Lawrence Factor, Inc. Dba Lawrence Factor Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-633-8771?

NSN 4820-01-633-8771 has 1 manufacturer part number on file: NP-2201-0004A (Lawrence Factor, Inc. Dba Lawrence Factor Inc).

What are the specifications of NP-2201-0004A?

Key specifications for NP-2201-0004A: Part Name Assigned by Controlling Agency: NAVY: VALVE,EXHAUST, 2ND; CAGE: VALVE INSERT, DISCHARGE; End Item Identification: FITS 012835; EBAC CONFIGURATION 3; EBAC CONFIGURATION 4. 0 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-633-8771 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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