The Valve,safety Relief, cataloged under National Stock Number 4820-01-170-6808, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Naval Inventory Control Point Mechanicsburg. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-170-6808 |
| Primary Part Number | 20167 PART 20167 JM51MC1 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Connection Type | UNTHREADED INTERNAL PIPE FIRST END |
| Material | NICKEL ALLOY 400 OR NICKEL ALLOY R-405 FLOW CONTROL DEVICE |
| Connection Type | UNTHREADED INTERNAL PIPE SECOND END |
| Connection Style | STREAMLINED WITH ONE BRAZING RING SECOND END |
| Valve Operation Method | AUTOMATIC |
| Flow Control Device | DISK |
| Nominal Pipe Size Accommodated | 0.500 INCHES SECOND END IN |
| Reference Number Differentiating Characteristics | QUALITY CONTROL IAW NAVSHIPS LEVEL 1 ITEMS,CLEANING IN ACCORDANCE WITH MIL-C-52211 |
| Adjustable Pressure Range | +56.0 TO 65.0 POUNDS PER SQUARE INCH LBS |
| Nominal Pipe Size Accommodated | 0.750 INCHES FIRST END IN |
| Material | COPPER ALLOY 922 BODY |
| Material | COPPER ALLOY 922 SEAT |
| Criticality Code Justification | ZZZY |
| Bonnet Attachment Method | BOLTED |
| Connection Style | STREAMLINED WITH ONE BRAZING RING FIRST END |
| Style Designator | ANGLE |
| Material | NICKEL ALLOY 400 OR NICKEL ALLOY R-405 STEM |
| Bonnet Type | INSIDE SPRING |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 20167 PART 20167 JM51MC1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 20167JM51MC1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 20167 PART 20167 JM51M | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| 20167JM51M | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
NSN 4820-01-170-6808 is a Valve,safety Relief, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-170-6808 has 4 cross-referenced part numbers: 20167 PART 20167 JM51MC1 (Naval Inventory Control Point Mechanicsburg), 20167JM51MC1 (Naval Inventory Control Point Mechanicsburg), 20167 PART 20167 JM51M (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 20167JM51M (Anderson Greenwood Lp Dba Anderson Greenwood Crosby).
There is 1 known substitute for 4820-01-170-6808: 4820-01-539-3343. Verify interchangeability with system specifications before substitution.
Key specifications for 20167 PART 20167 JM51MC1: Connection Type: UNTHREADED INTERNAL PIPE FIRST END; Material: NICKEL ALLOY 400 OR NICKEL ALLOY R-405 FLOW CONTROL DEVICE; Connection Type: UNTHREADED INTERNAL PIPE SECOND END; Connection Style: STREAMLINED WITH ONE BRAZING RING SECOND END. 18 total characteristics are documented in the Federal Logistics Information System.