The Valve,safety Relief, cataloged under National Stock Number 4820-01-465-4628, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Kidde Fire Fighting, Inc. Div National Foam. Government technical data includes 15 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-465-4628 |
| Primary Part Number | 1231-1306-6 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Kidde Fire Fighting, Inc. Div National Foam |
| Status | ACTIVE |
| Connection Style | GASKET SEAL (PIPE) FIRST END |
| Connection Type | THREADED EXTERNAL PIPE FIRST END |
| Style Designator | STRAIGHT THRU NOTE: TO BE USED FOR VALVE BODIES OF ONE SECTION ONLY. |
| Operating Pressure | 275.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM POWER DRIVE LBS |
| Bonnet Type | INSIDE SPRING |
| Thread Direction | RIGHT-HAND FIRST END |
| Nominal Thread Size | 1.500 INCHES FIRST END IN |
| Disk Loading Method | SPRING |
| Bonnet Attachment Method | PRESSURE SEAL, RING TYPE |
| Material | BRONZE BODY |
| Material | COPPER ALLOY FLOW CONTROL DEVICE |
| Material | STEEL CORROSION RESISTING SEAT |
| Material | COPPER ALLOY STEM |
| Thread Series Designator | NPTF FIRST END |
| Valve Operation Method | HYDRAULIC |
| 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 |
|---|---|
| 9325C16-1095-01 | The Entwistle Company Llc (USA) |
| 1231-1306-6 PRIMARY | Kidde Fire Fighting, Inc. Div National Foam (USA) |
| 20-G-MG0200 PRIMARY | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| Reference | Meaning |
|---|---|
| 9325C16-1095 | D/9 Drawing number reference only The Entwistle Company Llc |
NSN 4820-01-465-4628 is a Valve,safety Relief, manufactured by Kidde Fire Fighting, Inc. Div National Foam, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-465-4628 has 3 manufacturer part numbers on file: 9325C16-1095-01 (The Entwistle Company Llc), 1231-1306-6 (Kidde Fire Fighting, Inc. Div National Foam), 20-G-MG0200 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby).
Key specifications for 1231-1306-6: Connection Style: GASKET SEAL (PIPE) FIRST END; Connection Type: THREADED EXTERNAL PIPE FIRST END; Style Designator: STRAIGHT THRU NOTE: TO BE USED FOR VALVE BODIES OF ONE SECTION ONLY.; Operating Pressure: 275.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM POWER DRIVE LBS. 15 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.