NSN 4820-01-378-5943 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-378-5943. Manufacturer of record part number: 36801-40003-1.
Operating Pressure: 312.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Valve Operation Method: AUTOMATIC
2 manufacturer part numbers on file
Manufacturer of record: Aai Systems Management Inc
Identification
NSN: 4820-01-378-5943
NIIN: 013785943
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 36801-40003-1
Manufacturer: Aai Systems Management Inc
General Description
The Valve,safety Relief, cataloged under National Stock Number 4820-01-378-5943, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Aai Systems Management Inc. 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. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
4820-01-378-5943
Primary Part Number
36801-40003-1
Item Name
Valve,safety Relief
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Aai Systems Management Inc
Status
ACTIVE
Operating Pressure
312.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
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 4820-01-378-5943?
NSN 4820-01-378-5943 is a Valve,safety Relief, manufactured by Aai Systems Management Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-378-5943?
NSN 4820-01-378-5943 has 2 manufacturer part numbers on file: 6801-40003 (Aai Systems Management Inc), 36801-40003-1 (Aai Systems Management Inc).
What are the specifications of 36801-40003-1?
Key specifications for 36801-40003-1: Operating Pressure: 312.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Valve Operation Method: AUTOMATIC. 2 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-378-5943 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.
What is the DEMIL code for NSN 4820-01-378-5943?
NSN 4820-01-378-5943 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.