The Valve,check, cataloged under National Stock Number 4820-01-050-0514, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Bell Textron Inc. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-050-0514 |
| Primary Part Number | 209-063-505-1 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Bell Textron Inc |
| Status | ACTIVE |
| Flow Control Device | POPPET |
| Valve Operation Method | AUTOMATIC |
| Thread Direction | RIGHT-HAND SECOND END |
| Style Designator | STRAIGHT THRU |
| Thread Class | 3B SECOND END |
| Mounting Position | HORIZONTAL OR VERTICAL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) SECOND END |
| Connection Type | THREADED EXTERNAL TUBE FIRST END |
| Nominal Thread Size | 0.875 INCHES SECOND END IN |
| Nominal Thread Size | 0.875 INCHES FIRST END IN |
| Connection Type | THREADED INTERNAL BOSS SECOND END |
| Connection Style | GASKET SEAL (BOSS) SECOND END |
| Thread Class | 3A FIRST END A |
| Thread Series Designator | UNF FIRST END |
| Connection Style | FLARED (TUBE) FIRST END |
| Thread Direction | RIGHT-HAND FIRST END |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 3449 | Hawker Pacific Aerospace Landing Gear and Components Mfg and Repair (USA) |
| 3449 | Kaiser Fluid Technologies Inc. (USA) |
| 209-063-505-1 PRIMARY | Bell Textron Inc (USA) |
NSN 4820-01-050-0514 is a Valve,check, manufactured by Bell Textron Inc, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-050-0514 has 3 cross-referenced part numbers: 3449 (Hawker Pacific Aerospace Landing Gear and Components Mfg and Repair), 3449 (Kaiser Fluid Technologies Inc.), 209-063-505-1 (Bell Textron Inc).
There are 8 known substitutes for 4820-01-050-0514: 6695-00-187-3747, 2825-00-388-6907, 4710-00-440-1910 and 5 more. Verify interchangeability with system specifications before substitution.
Key specifications for 209-063-505-1: Flow Control Device: POPPET; Valve Operation Method: AUTOMATIC; Thread Direction: RIGHT-HAND SECOND END; Style Designator: STRAIGHT THRU. 16 total characteristics are documented in the Federal Logistics Information System.