The Valve,safety Relief, cataloged under National Stock Number 4820-00-431-6157, 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 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, 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 | 4820-00-431-6157 |
| Primary Part Number | 20174 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Anderson Greenwood Lp Dba Anderson Greenwood Crosby |
| Status | ACTIVE |
| Bonnet Attachment Method | BOLTED |
| Flange Face Design | PLAIN FIRST END |
| Adjustable Pressure Range | +156.0 TO 180.0 POUNDS PER SQUARE INCH LBS |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE AND NICKEL ALLOY 400 SEAT |
| Flow Control Device | DISK |
| Bonnet Type | EXPOSED SPRING |
| Disk Loading Method | SPRING |
| Valve Operation Method | AUTOMATIC |
| Connection Type | FLANGE FIRST END |
| Renewable Seat Ring Type | THREADED |
| Criticality Code Justification | ZZZY |
| Style Designator | ANGLE |
| Features Provided | PRESSURE TIGHT OUTLET SIDE |
| Reference Number Differentiating Characteristics | MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS |
| Flange Shape | ROUND FIRST END |
| Material | NICKEL ALLOY 400 FLOW CONTROL DEVICE |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 20174 | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| 2017ASSYRS41M | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| 20174RS41M | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
NSN 4820-00-431-6157 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 4820-00-431-6157 has 3 cross-referenced part numbers: 20174 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 2017ASSYRS41M (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 20174RS41M (Anderson Greenwood Lp Dba Anderson Greenwood Crosby).
There are 6 known substitutes for 4820-00-431-6157: 3110-00-156-7513, 5365-01-247-8038, 5315-01-313-8472 and 3 more. Verify interchangeability with system specifications before substitution.
Key specifications for 20174: Bonnet Attachment Method: BOLTED; Flange Face Design: PLAIN FIRST END; Adjustable Pressure Range: +156.0 TO 180.0 POUNDS PER SQUARE INCH LBS; Material: PLASTIC POLYTETRAFLUOROETHYLENE AND NICKEL ALLOY 400 SEAT. 16 total characteristics are documented in the Federal Logistics Information System.