Valve, Safety Relief 4820-01-181-9739 NSN 4820-01-181-9739 · NIIN 011819739 · Part number 508-0108-3PSI50
Rockwood Swendeman · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 0D4Y1
NSN 4820-01-181-9739 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-181-9739. Manufacturer of record part number: 508-0108-3PSI50 .
Also searched as
4820-01-181-9739 ·
4820011819739 ·
NIIN 011819739 ·
01-181-9739 ·
FSC 4820 Valves, Nonpowered · CAGE 0D4Y1 · 508-0108-3PSI50 · RXSO1/2X1/2 · 4-4-5917-01
Nearby stock numbers
← 4820-01-181-9551 Valve, Globe
·
4820-01-181-9740 Valve, Plug →
4820-01-181-9739 — Valves, Nonpowered
Features
Valve,safety Relief — FSC 4820 Flow Control Device: POPPET 1 manufacturer part number on file Manufacturer of record: Rockwood Swendeman
Identification
NSN: 4820-01-181-9739
NIIN: 011819739
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 508-0108-3PSI50
Manufacturer: Rockwood Swendeman
General Description
The Valve,safety Relief, cataloged under National Stock Number 4820-01-181-9739, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Rockwood Swendeman. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
Technical Specifications
Parameter Value NSN 4820-01-181-9739 Primary Part Number 508-0108-3PSI50 Item Name Valve,safety Relief FSC / FSG 4820 / 48 — Valves, Nonpowered Manufacturer Rockwood Swendeman Status ACTIVE Flow Control Device POPPET
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
Reference documents
Reference Meaning
RXSO1/2X1/2
5/9 Secondary reference Tyco Fire Products Lp
4-4-5917-01
5/9 Secondary reference Gibson Cryogenics Inc
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 4820-01-181-9739?
NSN 4820-01-181-9739 is a Valve,safety Relief, manufactured by Rockwood Swendeman, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-181-9739?
NSN 4820-01-181-9739 has 1 manufacturer part number on file: 508-0108-3PSI50 (Rockwood Swendeman).
What are the specifications of 508-0108-3PSI50?
Key specifications for 508-0108-3PSI50: Flow Control Device: POPPET. 1 specification is documented in the U.S. Government catalog.
Is NSN 4820-01-181-9739 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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