The Valve,bleeder,hydraulic System, cataloged under National Stock Number 4820-01-030-1657, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Mission Systems Orchard Park Inc. Government technical data includes 14 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-030-1657 |
| Primary Part Number | 1838-015-01 |
| Item Name | Valve,bleeder,hydraulic System |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Mission Systems Orchard Park Inc |
| Status | ACTIVE |
| Thread Class | 3A ALL ENDS A |
| Connection Type | THREADED EXTERNAL TUBE ALL ENDS |
| Style Designator | STRAIGHT THRU |
| Seat Angle | 60.0 DEGREES SECOND END |
| Nominal Thread Size | 0.500 INCHES FIRST END IN |
| Material | STEEL CORROSION RESISTING OVERALL |
| Operating Pressure | 5000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Thread Series Designator | UNF ALL ENDS |
| Valve Operation Method | MANUAL |
| Nominal Thread Size | 0.313 INCHES SECOND END IN |
| Connection Style | FLARED (TUBE) SECOND END |
| Flow Control Device | DISK |
| Connection Style | PLAIN (TUBE) FIRST END |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 1819 | Rockwell Collins Inc (USA) |
| 1838-015-01 | Conax Florida Corporation (USA) |
| 1838-015-01 PRIMARY | Mission Systems Orchard Park Inc (USA) |
| 1819 | Conax Florida Corporation (USA) |
NSN 4820-01-030-1657 is a Valve,bleeder,hydraulic System, manufactured by Mission Systems Orchard Park Inc, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-030-1657 has 4 cross-referenced part numbers: 1819 (Rockwell Collins Inc), 1838-015-01 (Conax Florida Corporation), 1838-015-01 (Mission Systems Orchard Park Inc), 1819 (Conax Florida Corporation).
There are 12 known substitutes for 4820-01-030-1657: 4820-00-036-1750, 6240-00-155-8707, 5905-00-158-4615 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 1838-015-01: Thread Class: 3A ALL ENDS A; Connection Type: THREADED EXTERNAL TUBE ALL ENDS; Style Designator: STRAIGHT THRU; Seat Angle: 60.0 DEGREES SECOND END. 14 total characteristics are documented in the Federal Logistics Information System.