The Valve,safety Relief, cataloged under National Stock Number 4820-00-768-6349, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Lockheed Martin Corp. Government technical data includes 21 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-768-6349 |
| Primary Part Number | 1030-20 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Lockheed Martin Corp |
| Status | ACTIVE |
| Features Provided | PRESSURE TIGHT OUTLET SIDE |
| Flow Control Device | PISTON |
| Material | STEEL FLOW CONTROL DEVICE |
| Operating Pressure | 1760.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Style Designator | ANGLE W/OFFSET |
| Material | ALUMINUM ALLOY BODY |
| Media for Which Designed | HYDRAULIC FLUID, PHOSPHATE-ESTER BASE SINGLE RESPONSE |
| Thread Series Designator | UNF ALL ENDS |
| Opening Pressure Setting | 1580.0 POUNDS PER SQUARE INCH LBS |
| Nominal Thread Size | 0.562 INCHES ALL ENDS IN |
| Mounting Facility | THREADED FASTENER |
| Material | STEEL STEM |
| Valve Operation Method | AUTOMATIC |
| Thread Class | 3B ALL ENDS |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Connection Type | THREADED INTERNAL BOSS ALL ENDS |
| Material | STEEL SEAT |
| Disk Loading Method | SPRING |
| Maximum Operating Temp | 160.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Connection Style | GASKET SEAL(BOSS) ALL ENDS |
| Valve Discharge Flow Rate | 3.5 GALLONS PER MINUTE |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 4820PL0816865 | Jednolity Indeks Materialowy - Uniform Material Index (POL) |
| 695862-1 | Lockheed Martin Corp (USA) |
| 1030-20-1580 | Droitcour Co (USA) |
| 1030-20 | Droitcour Co (USA) |
| 1030-20 PRIMARY | Lockheed Martin Corp (USA) |
| 695862 | Lockheed Martin Corp (USA) |
NSN 4820-00-768-6349 is a Valve,safety Relief, manufactured by Lockheed Martin Corp, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-768-6349 has 6 cross-referenced part numbers: 4820PL0816865 (Jednolity Indeks Materialowy - Uniform Material Index), 695862-1 (Lockheed Martin Corp), 1030-20-1580 (Droitcour Co), 1030-20 (Droitcour Co), 1030-20 (Lockheed Martin Corp) and 1 more.
There are 5 known substitutes for 4820-00-768-6349: 5330-00-840-6932, 5905-01-145-3124, 5905-01-194-1433 and 2 more. Verify interchangeability with system specifications before substitution.
Key specifications for 1030-20: Features Provided: PRESSURE TIGHT OUTLET SIDE; Flow Control Device: PISTON; Material: STEEL FLOW CONTROL DEVICE; Operating Pressure: 1760.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS. 21 total characteristics are documented in the Federal Logistics Information System.