The Valve,safety Relief, cataloged under National Stock Number 4820-00-694-8051, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Huck International, Inc. Div Kingston Operations. Government technical data includes 22 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-694-8051 |
| Primary Part Number | 627-1 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Huck International, Inc. Div Kingston Operations |
| Status | ACTIVE |
| Thread Quantity Per Inch | 20 ALL ENDS |
| Connection Style | GASKET SEAL(BOSS) ALL ENDS |
| Adjustable Pressure Range | +1000.0 TO 2100.0 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3B ALL ENDS |
| Material | STEEL SEAT |
| Flow Control Device | POPPET |
| Style Designator | ANGLE |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Nominal Thread Size | 0.437 INCHES ALL ENDS IN |
| Bonnet Attachment Method | THREADED |
| Features Provided | BONNET PACKING AND PRESSURE TIGHT OUTLET SIDE |
| Seat Angle | 37.0 DEGREES ALL ENDS |
| Surface Treatment | ANODIZE LOCATION NOT OTHERWISE SPECIFIED |
| Disk Loading Method | SPRING |
| Nominal Outside Diameter Tube Accommodated | 0.250 INCHES ALL ENDS IN |
| Thread Series Designator | UNF ALL ENDS |
| Renewable Seat Ring Type | PRESSED-IN |
| Material | STEEL FLOW CONTROL DEVICE |
| Material | ALUMINUM ALLOY BODY |
| Bonnet Type | INSIDE SPRING |
| Connection Type | THREADED INTERNAL BOSS ALL ENDS |
| Valve Operation Method | AUTOMATIC |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 627-1 PRIMARY | Huck International, Inc. Div Kingston Operations (USA) |
NSN 4820-00-694-8051 is a Valve,safety Relief, manufactured by Huck International, Inc. Div Kingston Operations, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-694-8051 has 1 cross-referenced part number: 627-1 (Huck International, Inc. Div Kingston Operations).
There are 7 known substitutes for 4820-00-694-8051: 9390-00-300-1516, 5950-00-392-6569, 5940-00-441-4582 and 4 more. Verify interchangeability with system specifications before substitution.
Key specifications for 627-1: Thread Quantity Per Inch: 20 ALL ENDS; Connection Style: GASKET SEAL(BOSS) ALL ENDS; Adjustable Pressure Range: +1000.0 TO 2100.0 POUNDS PER SQUARE INCH LBS; Thread Class: 3B ALL ENDS. 22 total characteristics are documented in the Federal Logistics Information System.