The Valve,safety Relief, cataloged under National Stock Number 4820-01-052-3975, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Anderson Greenwood Lp Dba Anderson Greenwood Crosby. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-052-3975 |
| Primary Part Number | 87-CS-165 31T50 MODML-185 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Anderson Greenwood Lp Dba Anderson Greenwood Crosby |
| Status | ACTIVE |
| Material Document and Classification | QQ-C-390,ALLOY D4/D/ FED SPEC SINGLE MATERIAL RESPONSE BODY |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Connection Style | PLAIN (PIPE) FIRST END |
| Media for Which Designed | AIR SINGLE RESPONSE |
| Operating Pressure | 50.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Thread Series Designator | NPT ALL ENDS |
| Connection Type | THREADED EXTERNAL PIPE ALL ENDS |
| Flow Control Device | DISK |
| Nominal Thread Size | 0.500 INCHES SECOND END IN |
| Valve Operation Method | AUTOMATIC |
| Style Designator | ANGLE |
| Material | COPPER ALLOY BODY |
| Nominal Thread Size | 0.750 INCHES FIRST END IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| D42UU-03 1/2 X 3/4 IN. | Danco Valve Company (USA) |
| D42UU-03H-1/2-3/4 | Dante Valve Company (USA) |
| 200137 | Dresser-Rand Co Worthington Compressor Opn a Joint Venture (USA) |
| 87-CS-165 31T50 MODML-185 PRIMARY | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| 9521 AND ML185 | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| D42UU-03 1/2 X 3/4 IN. | Dante Valve Company (USA) |
| 9521-31T50-ML-185 | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| 87CS165MOD31T50PSI | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| 87CS165M0D31T50 | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
NSN 4820-01-052-3975 is a Valve,safety Relief, manufactured by Anderson Greenwood Lp Dba Anderson Greenwood Crosby, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-052-3975 has 9 cross-referenced part numbers: D42UU-03 1/2 X 3/4 IN. (Danco Valve Company), D42UU-03H-1/2-3/4 (Dante Valve Company), 200137 (Dresser-Rand Co Worthington Compressor Opn a Joint Venture), 87-CS-165 31T50 MODML-185 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 9521 AND ML185 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby) and 4 more.
There are 6 known substitutes for 4820-01-052-3975: 5315-00-148-8962, 5133-00-189-9282, 5330-01-023-6198 and 3 more. Verify interchangeability with system specifications before substitution.
Key specifications for 87-CS-165 31T50 MODML-185: Material Document and Classification: QQ-C-390,ALLOY D4/D/ FED SPEC SINGLE MATERIAL RESPONSE BODY; Thread Direction: RIGHT-HAND ALL ENDS; Connection Style: PLAIN (PIPE) FIRST END; End Item Identification: LOS ANGELES CLASS SSN(688). 14 total characteristics are documented in the Federal Logistics Information System.