The Valve,safety Relief, cataloged under National Stock Number 4820-01-391-0728, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Engineered Air Systems, Inc. Dba Drs Sustainment Systems. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 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 | 4820-01-391-0728 |
| Primary Part Number | 25000-1 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Engineered Air Systems, Inc. Dba Drs Sustainment Systems |
| Status | ACTIVE |
| Connection Type | THREADED INTERNAL PIPE SECOND END |
| Connection Style | PLAIN,OPTIONAL END(PIPE) SECOND END |
| Connection Type | THREADED EXTERNAL PIPE FIRST END |
| Material | BRONZE BODY |
| Style Designator | ANGLE |
| Operating Pressure | 200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Thread Series Designator | NPT ALL ENDS |
| Connection Style | PLAIN (PIPE) FIRST END |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Valve Operation Method | AUTOMATIC |
| Nominal Thread Size | 0.750 INCHES ALL ENDS IN |
| Flow Control Device | DISK |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 25000-1 | Engineered Air Systems, Inc. Dba Drs Sustainment Systems (USA) |
| 25000-1 | Drs Environmental Systems Inc (USA) |
| 25000 | Engineered Air Systems, Inc. Dba Drs Sustainment Systems (USA) |
| 912BDD-19 | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| 25000-1 | Hdt Expeditionary Systems Inc (USA) |
NSN 4820-01-391-0728 is a Valve,safety Relief, manufactured by Engineered Air Systems, Inc. Dba Drs Sustainment Systems, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-391-0728 has 5 cross-referenced part numbers: 25000-1 (Engineered Air Systems, Inc. Dba Drs Sustainment Systems), 25000-1 (Drs Environmental Systems Inc), 25000 (Engineered Air Systems, Inc. Dba Drs Sustainment Systems), 912BDD-19 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 25000-1 (Hdt Expeditionary Systems Inc).
There are 12 known substitutes for 4820-01-391-0728: 5340-00-072-3756, 4820-00-305-4237, 5340-00-424-8235 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 25000-1: Connection Type: THREADED INTERNAL PIPE SECOND END; Connection Style: PLAIN,OPTIONAL END(PIPE) SECOND END; Connection Type: THREADED EXTERNAL PIPE FIRST END; Material: BRONZE BODY. 12 total characteristics are documented in the Federal Logistics Information System.