The Valve,safety Relief, cataloged under National Stock Number 4820-00-173-1834, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Norgren C a Co. Government technical data includes 30 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 4820-00-173-1834 |
| Primary Part Number | V06-221-NNEA |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Norgren C a Co |
| Status | CANCELLED |
| Adjustable Pressure Range | +1.0 TO 50.0 POUNDS PER SQUARE INCH LBS |
| Features Provided | PRESSURE TIGHT OUTLET SIDE |
| Connection Style | PLAIN,OPTIONAL END(PIPE) ALL ENDS |
| Features Provided | PRESSURE TIGHT OUTLET SIDE |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR FLOW CONTROL DEVICE |
| Nominal Thread Size | 0.250 INCHES ALL ENDS IN |
| Flow Control Device | DIAPHRAGM |
| Connection Type | THREADED INTERNAL PIPE ALL ENDS |
| Valve Operation Method | AUTOMATIC |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Bonnet Type | INSIDE SPRING |
| Disk Loading Method | SPRING |
| Adjustable Pressure Range | +1.0 TO 50.0 POUNDS PER SQUARE INCH LBS |
| Media for Which Designed | AIR FIRST RESPONSE |
| Operating Pressure | 50.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Style Designator | ANGLE |
| Media for Which Designed | WATER, FRESH SECOND RESPONSE |
| Thread Series Designator | NPT ALL ENDS |
| Nominal Thread Size | 0.250 INCHES ALL ENDS IN |
| Material | COPPER ALLOY SEAT |
| Operating Pressure | 50.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Bonnet Attachment Method | THREADED |
| Renewable Seat Ring Type | THREADED |
| Mounting Facility | BULKHEAD |
| Material | COPPER ALLOY BODY |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR FLOW CONTROL DEVICE |
| Media for Which Designed | WATER, FRESH SECOND RESPONSE |
| Mounting Facility | BULKHEAD |
| Maximum Operating Temp | 150.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Style Designator | ANGLE |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 35510 | Rosco Mfg Co (USA) |
| V06-221-NNEA | John Henry Foster Company of St. Louis, Inc. (USA) |
| V06-221NNEAU | Norgren C a Co (USA) |
| 142C687H01 | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA) |
| V06-221-NNEA PRIMARY | Norgren C a Co (USA) |
NSN 4820-00-173-1834 is a Valve,safety Relief, manufactured by Norgren C a Co, classified under FSC 4820 (No Item Name Available). Status: cancelled.
NSN 4820-00-173-1834 has 5 cross-referenced part numbers: 35510 (Rosco Mfg Co), V06-221-NNEA (John Henry Foster Company of St. Louis, Inc.), V06-221NNEAU (Norgren C a Co), 142C687H01 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp), V06-221-NNEA (Norgren C a Co).
There are 3 known substitutes for 4820-00-173-1834: 5935-00-259-0204, 2920-00-928-6144, 6540-01-165-4987. Verify interchangeability with system specifications before substitution.
Key specifications for V06-221-NNEA: Adjustable Pressure Range: +1.0 TO 50.0 POUNDS PER SQUARE INCH LBS; Features Provided: PRESSURE TIGHT OUTLET SIDE; Connection Style: PLAIN,OPTIONAL END(PIPE) ALL ENDS; Features Provided: PRESSURE TIGHT OUTLET SIDE. 30 total characteristics are documented in the Federal Logistics Information System.
NSN 4820-00-173-1834 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.