The Valve,check, cataloged under National Stock Number 4820-01-170-9139, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Bird-Johnson Propeller Company, Llc. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-170-9139 |
| Primary Part Number | P-1-10-19 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Bird-Johnson Propeller Company, Llc |
| Status | ACTIVE |
| Thread Series Designator | NPT FIRST END |
| Mounting Position | HORIZONTAL |
| Connection Type | THREADED INTERNAL PIPE ALL ENDS |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Disk Loading Method | SPRING |
| Nominal Thread Size | 2.000 INCHES ALL ENDS IN |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Valve Operation Method | AUTOMATIC |
| Flow Control Device | POPPET |
| Connection Style | PLAIN, OPTIONAL END (PIPE) ALL ENDS |
| Style Designator | STRAIGHT THRU |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| P-1-10-19 PRIMARY | Bird-Johnson Propeller Company, Llc (USA) |
| QD-16-D-10A1 | Eaton Aerospace, Llc Dba Jackson South (USA) |
| QD-16-D-10A1 | Vickers Inc (USA) |
| QD-16-D-10A1 | Bird-Johnson Propeller Company, Llc (USA) |
NSN 4820-01-170-9139 is a Valve,check, manufactured by Bird-Johnson Propeller Company, Llc, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-170-9139 has 4 cross-referenced part numbers: P-1-10-19 (Bird-Johnson Propeller Company, Llc), QD-16-D-10A1 (Eaton Aerospace, Llc Dba Jackson South), QD-16-D-10A1 (Vickers Inc), QD-16-D-10A1 (Bird-Johnson Propeller Company, Llc).
There is 1 known substitute for 4820-01-170-9139: 3110-00-156-5328. Verify interchangeability with system specifications before substitution.
Key specifications for P-1-10-19: Thread Series Designator: NPT FIRST END; Mounting Position: HORIZONTAL; Connection Type: THREADED INTERNAL PIPE ALL ENDS; Special Features: SET AT 15 PSI CRACKING PRESSURE. 12 total characteristics are documented in the Federal Logistics Information System.