The Valve,safety Relief, cataloged under National Stock Number 4820-00-306-8103, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Pti Technologies Inc.. Government technical data includes 4 specifications, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 4820-00-306-8103 |
| Primary Part Number | 53-10401-7 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Pti Technologies Inc. |
| Status | ACTIVE |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Maximum Operating Temp | 275.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Media for Which Designed | HYDRAULIC FLUID, MINERAL BASE SINGLE RESPONSE |
| Material | STEEL CORROSION RESISTING BODY |
| 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 |
|---|---|
| 53-10401-7 | Pti Technologies Inc. (USA) |
| Reference | Meaning |
|---|---|
| P10-776 | 3/2 Design control — primary reference U.S. Government activity |
| 53-10401-7 | 5/2 Secondary reference U.S. Government activity |
NSN 4820-00-306-8103 is a Valve,safety Relief, manufactured by Pti Technologies Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-306-8103 has 1 manufacturer part number on file: 53-10401-7 (Pti Technologies Inc.).
Key specifications for 53-10401-7: Operating Pressure: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Maximum Operating Temp: 275.0 FAHRENHEIT SINGLE RESPONSE DEGF; Special Features: CARTRIDGE TYPE.; Media for Which Designed: HYDRAULIC FLUID, MINERAL BASE SINGLE RESPONSE. 4 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.