The Valve,safety Relief, cataloged under National Stock Number 4820-01-153-1403, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Droitcour Co. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-153-1403 |
| Primary Part Number | 1703-14 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Droitcour Co |
| Status | ACTIVE |
| Material | STEEL CORROSION RESISTING BODY |
| Nominal Thread Size | 0.750 INCHES ALL ENDS IN |
| Material | STEEL CORROSION RESISTING FLOW CONTROL DEVICE |
| Opening Pressure Setting | 3250.0 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3B ALL ENDS |
| Flow Control Device | DISK |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Valve Operation Method | AUTOMATIC |
| Thread Series Designator | UNF ALL ENDS |
| Connection Type | THREADED INTERNAL BOSS ALL ENDS |
| Style Designator | STRAIGHT THRU NOTE: TO BE USED FOR VALVE BODIES OF SEPARABLE SECTIONS. |
| Connection Style | GASKET SEAL(BOSS) ALL ENDS |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 1703-14 | Droitcour Co (USA) |
| MIL-V-8813 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| MS28893-D8-3250 | Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M |
| 1200-5 | Pneudraulics, Inc. (USA) |
NSN 4820-01-153-1403 is a Valve,safety Relief, manufactured by Droitcour Co, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-153-1403 has 4 cross-referenced part numbers: 1703-14 (Droitcour Co), MIL-V-8813 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MS28893-D8-3250 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), 1200-5 (Pneudraulics, Inc.).
There are 12 known substitutes for 4820-01-153-1403: 5110-00-224-7911, 5815-00-537-7697, 1620-00-601-9930 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 1703-14: Material: STEEL CORROSION RESISTING BODY; Nominal Thread Size: 0.750 INCHES ALL ENDS IN; Material: STEEL CORROSION RESISTING FLOW CONTROL DEVICE; Opening Pressure Setting: 3250.0 POUNDS PER SQUARE INCH LBS. 12 total characteristics are documented in the Federal Logistics Information System.