Valve, Check4820-01-124-3990

NSN 4820-01-124-3990 · NIIN 011243990 · Part number SP20745

Cadillac Gage Textron Inc. · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 10237

Government record, cited

NSN 4820-01-124-3990 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-124-3990. Manufacturer of record part number: SP20745.

Also searched as 4820-01-124-3990 · 4820011243990 · NIIN 011243990 · 01-124-3990 · FSC 4820 Valves, Nonpowered · CAGE 10237 · SP20745

Nearby stock numbers ← 4820-01-124-3962 Valve, Insert · 4820-01-124-4067 Disk, Valve →

4820-01-124-3990 — Valves, Nonpowered

Features

Valve,check — FSC 4820
1 manufacturer part number on file
Manufacturer of record: Cadillac Gage Textron Inc.

Identification

NSN: 4820-01-124-3990
NIIN: 011243990
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: SP20745
Manufacturer: Cadillac Gage Textron Inc.

General Description

The Valve,check, cataloged under National Stock Number 4820-01-124-3990, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Cadillac Gage Textron 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.

Catalog Facts

Item Name	Valve,check
FSC / FSG	4820 — Valves, Nonpowered (FSG 48)
Manufacturers	Cadillac Gage Textron Inc. (CAGE 10237)

Technical Specifications

Parameter	Value
NSN	4820-01-124-3990
Primary Part Number	SP20745
Item Name	Valve,check
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Cadillac Gage Textron 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)

Cross-Reference Index

Part Number	Manufacturer
SP20745 PRIMARY	Cadillac Gage Textron 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 4820-01-124-3990?

NSN 4820-01-124-3990 is a Valve,check, manufactured by Cadillac Gage Textron Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-124-3990?

NSN 4820-01-124-3990 has 1 manufacturer part number on file: SP20745 (Cadillac Gage Textron Inc.).

Is NSN 4820-01-124-3990 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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