NSN 4820-01-378-5148 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-378-5148. Manufacturer of record part number: 401A.
Manufacturer of record: Airtech International Inc Dba Airtech International Inc
Identification
NSN: 4820-01-378-5148
NIIN: 013785148
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 401A
Manufacturer: Airtech International Inc Dba Airtech International Inc
General Description
The Valve,vacuum Regulating, cataloged under National Stock Number 4820-01-378-5148, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Airtech International Inc Dba Airtech International Inc. Government technical data includes 1 specification, 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
4820-01-378-5148
Primary Part Number
401A
Item Name
Valve,vacuum Regulating
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Airtech International Inc Dba Airtech International Inc
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 4820-01-378-5148?
NSN 4820-01-378-5148 is a Valve,vacuum Regulating, manufactured by Airtech International Inc Dba Airtech International Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-378-5148?
NSN 4820-01-378-5148 has 2 manufacturer part numbers on file: 401A (Airtech International Inc Dba Airtech International Inc), HK1401 (Hawkeye International, Llc).
What are the specifications of 401A?
Key specifications for 401A: Body Material: ALUMINUM. 1 specification is documented in the U.S. Government catalog.
Is NSN 4820-01-378-5148 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.