Valve, Safety Relief 4820-01-291-1378 NSN 4820-01-291-1378 · NIIN 012911378 · Part number VAL-1489
Atlas Copco Holyoke Inc · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 59379
NSN 4820-01-291-1378 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-291-1378. Manufacturer of record part number: VAL-1489 .
Also searched as
4820-01-291-1378 ·
4820012911378 ·
NIIN 012911378 ·
01-291-1378 ·
FSC 4820 Valves, Nonpowered · CAGE 59379 · VAL-1489
Nearby stock numbers
← 4820-01-291-1377 Valve, Check
·
4820-01-291-1379 Valve, Safety Relief →
4820-01-291-1378 — Valves, Nonpowered
Features
Valve,safety Relief — FSC 4820 Valve Operation Method: AUTOMATIC 1 manufacturer part number on file Manufacturer of record: Atlas Copco Holyoke Inc
Identification
NSN: 4820-01-291-1378
NIIN: 012911378
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: VAL-1489
Manufacturer: Atlas Copco Holyoke Inc
General Description
The Valve,safety Relief, cataloged under National Stock Number 4820-01-291-1378, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Atlas Copco Holyoke Inc. Government technical data includes 1 specification, 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. Current acquisition status: Active.
Technical Specifications
Parameter Value NSN 4820-01-291-1378 Primary Part Number VAL-1489 Item Name Valve,safety Relief FSC / FSG 4820 / 48 — Valves, Nonpowered Manufacturer Atlas Copco Holyoke Inc Status ACTIVE Valve Operation Method AUTOMATIC
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
VAL-1489 PRIMARY Atlas Copco Holyoke 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.
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4820-00-000-0097 · Item name not on file
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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 4820-01-291-1378?
NSN 4820-01-291-1378 is a Valve,safety Relief, manufactured by Atlas Copco Holyoke Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-291-1378?
NSN 4820-01-291-1378 has 1 manufacturer part number on file: VAL-1489 (Atlas Copco Holyoke Inc).
What are the specifications of VAL-1489?
Key specifications for VAL-1489: Valve Operation Method: AUTOMATIC. 1 specification is documented in the U.S. Government catalog.
Is NSN 4820-01-291-1378 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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