The Valve,safety Relief, cataloged under National Stock Number 4820-01-465-9625, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Amron International Inc. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 4820-01-465-9625 |
| Primary Part Number | SS-4R3A-1509-H |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Amron International Inc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| SS-4R3A-1509-H | Atlantic Diving Supply, Inc. Dba Ads (USA) |
| SS-4R3A-1509-H PRIMARY | Amron International Inc (USA) |
| Reference | Meaning |
|---|---|
| 177-R3A-K1-H | 5/9 Secondary reference Swagelok Co |
| SS-4R3A-1509-H | 5/9 Secondary reference Swagelok Co |
NSN 4820-01-465-9625 is a Valve,safety Relief, manufactured by Amron International Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-465-9625 has 2 manufacturer part numbers on file: SS-4R3A-1509-H (Atlantic Diving Supply, Inc. Dba Ads), SS-4R3A-1509-H (Amron International Inc).
Key specifications for SS-4R3A-1509-H: Special Features: NEXT HIGHER ASSY; HELIOX SUPP.R; End Item Identification: W/S SPECIAL FORCES EQUIPMENT/EQUIPAGE. 0 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
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.