The Valve,safety Relief, cataloged under National Stock Number 4820-01-184-9375, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Conbraco Industries Inc. Government technical data includes 12 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-184-9375 |
| Primary Part Number | 15-117-B150 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Conbraco Industries Inc |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Connection Style | PLAIN (PIPE) ALL ENDS |
| Connection Type | THREADED EXTERNAL PIPE ALL ENDS |
| Style Designator | STRAIGHT THRU |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Nominal Thread Size | 0.500 INCHES ALL ENDS IN |
| Media for Which Designed | AIR SINGLE RESPONSE |
| Material | COPPER ALLOY BODY |
| Material | SILICON FLOW CONTROL DEVICE |
| Thread Series Designator | NPT ALL ENDS |
| Opening Pressure Setting | 150.0 POUNDS PER SQUARE INCH LBS |
| Valve Operation Method | AUTOMATIC |
| 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 |
|---|---|
| 15-117-B150 PRIMARY | Conbraco Industries Inc (USA) |
| 949 1-2NPT 150PSI PRIMARY | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| Reference | Meaning |
|---|---|
| 15-177-B150 | 5/9 Secondary reference Conbraco Industries Inc |
| 15-117 1-2NPT 150PSI | 5/9 Secondary reference Conbraco Industries Inc |
| 6314533 | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
| 95404 | 5/9 Secondary reference Eaton Corporation Dba Air Controls Division Div Air Controls Division |
NSN 4820-01-184-9375 is a Valve,safety Relief, manufactured by Conbraco Industries Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-184-9375 has 2 manufacturer part numbers on file: 15-117-B150 (Conbraco Industries Inc), 949 1-2NPT 150PSI (Anderson Greenwood Lp Dba Anderson Greenwood Crosby).
Key specifications for 15-117-B150: Flow Control Device: DISK; Connection Style: PLAIN (PIPE) ALL ENDS; Connection Type: THREADED EXTERNAL PIPE ALL ENDS; Style Designator: STRAIGHT THRU. 12 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.