The Valve,safety Relief, cataloged under National Stock Number 4820-01-310-4257, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 4820-01-310-4257 |
| Primary Part Number | PG-9002 ITEM 127 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division |
| Status | CANCELLED |
| Valve Operation Method | AUTOMATIC |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Connection Type | THREADED EXTERNAL PIPE ALL ENDS |
| Connection Style | PLAIN (PIPE) ALL ENDS |
| Thread Series Designator | NPT ALL ENDS |
| Media for Which Designed | FUEL/OIL, HYDROCARBON SINGLE RESPONSE |
| Nominal Thread Size | 0.250 INCHES ALL ENDS IN |
| Flow Control Device | DISK |
| Opening Pressure Setting | 1.0 POUNDS PER SQUARE INCH LBS |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| PG-9001 ITEM 127 | Reuland Electric Co (USA) |
| PG-9002 ITEM 12 | Reuland Electric Co (USA) |
| 94001 | Applied Industrial Technologies, Inc. Dba Applied Industrial Technologies (USA) |
| 94036 | Reuland Electric Co (USA) |
| PG-9002 ITEM 127 PRIMARY | Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division (USA) |
| PG-9002-IT 127 | Reuland Electric Co (USA) |
| PG-9002 ITEM 127 | Applied Industrial Technologies, Inc. Dba Applied Industrial Technologies (USA) |
| 94001 | Reuland Electric Co (USA) |
NSN 4820-01-310-4257 is a Valve,safety Relief, manufactured by Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division, classified under FSC 4820 (No Item Name Available). Status: cancelled.
NSN 4820-01-310-4257 has 8 cross-referenced part numbers: PG-9001 ITEM 127 (Reuland Electric Co), PG-9002 ITEM 12 (Reuland Electric Co), 94001 (Applied Industrial Technologies, Inc. Dba Applied Industrial Technologies), 94036 (Reuland Electric Co), PG-9002 ITEM 127 (Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division) and 3 more.
There are 12 known substitutes for 4820-01-310-4257: 5355-00-139-8215, 4820-00-152-1257, 5325-00-171-5950 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for PG-9002 ITEM 127: Valve Operation Method: AUTOMATIC; Thread Direction: RIGHT-HAND ALL ENDS; Connection Type: THREADED EXTERNAL PIPE ALL ENDS; Connection Style: PLAIN (PIPE) ALL ENDS. 9 total characteristics are documented in the Federal Logistics Information System.
NSN 4820-01-310-4257 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.