The Valve,safety Relief, cataloged under National Stock Number 4820-01-177-3886, 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 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, 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 | 4820-01-177-3886 |
| Primary Part Number | 20321216691SST |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Anderson Greenwood Lp Dba Anderson Greenwood Crosby |
| Status | ACTIVE |
| Flow Control Device | DISK |
| First Connection Face to Centerline Distance | 4.750 INCHES IN |
| Opening Pressure Setting | 1400.0 POUNDS PER SQUARE INCH LBS |
| Reference Number Differentiating Characteristics | MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS |
| Valve Operation Method | AUTOMATIC |
| Criticality Code Justification | ZZZY |
| Valve Size | 1.000 INCHES IN |
| Operating Pressure | 1500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Media for Which Designed | WATER, FRESH SINGLE RESPONSE |
| Second Connection Face to Centerline Distance | 4.750 INCHES IN |
| Mounting Facility | BRACKET(S) |
| Disk Loading Method | SPRING |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 20321216691SST | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| 20321 | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
NSN 4820-01-177-3886 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 4820-01-177-3886 has 2 cross-referenced part numbers: 20321216691SST (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 20321 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby).
There are 12 known substitutes for 4820-01-177-3886: 5935-00-097-3172, 3110-00-156-1916, 3040-00-180-5458 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 20321216691SST: Flow Control Device: DISK; First Connection Face to Centerline Distance: 4.750 INCHES IN; Opening Pressure Setting: 1400.0 POUNDS PER SQUARE INCH LBS; Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS. 12 total characteristics are documented in the Federal Logistics Information System.