The Valve,bleeder,hydraulic System, cataloged under National Stock Number 4820-01-104-5169, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-104-5169 |
| Primary Part Number | MIL-V-81940/1B |
| Item Name | Valve,bleeder,hydraulic System |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| Status | ACTIVE |
| Valve Operation Method | MANUAL |
| Flow Control Device | POPPET |
| Connection Style | PLAIN (TUBE) SECOND END |
| Maximum Operating Temp | 275.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Nominal Thread Size | 0.312 INCHES SECOND END IN |
| Thread Series Designator | UNIFIED NATIONAL JOINT (UNJ) FIRST END |
| Material | ALUMINUM ALLOY BODY |
| Media for Which Designed | HYDRAULIC FLUID, MINERAL BASE SINGLE RESPONSE |
| Nominal Thread Size | 0.438 INCHES FIRST END IN |
| Seat Angle | 37.0 DEGREES FIRST END |
| Specification/standard Data | 81349-MIL-V-81940/1 GOVERNMENT SPECIFICATION |
| Thread Quantity Per Inch | 20 FIRST END |
| Style Designator | ANGLE |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Thread Series Designator | UNF SECOND END |
| Connection Style | EXTERNAL SEAT FOR GASKET SEAL (BOSS) FIRST END |
| Connection Type | THREADED EXTERNAL TUBE SECOND END |
| Connection Type | THREADED EXTERNAL BOSS FIRST END |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Thread Class | 3A ALL ENDS A |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| MIL-V-81940/1B | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| P15-500 | Hanwha Defense Australia Pty Ltd (AUS) |
| P15-500 | Circor Aerospace, Inc. Dba Circor Aerospace Inc (USA) |
| MIL-V-81940/1 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| M81940/1 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| MIL-V-81940 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| MIL-DTL-81940/1 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| QPL-81940 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
NSN 4820-01-104-5169 is a Valve,bleeder,hydraulic System, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-104-5169 has 8 cross-referenced part numbers: MIL-V-81940/1B (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), P15-500 (Hanwha Defense Australia Pty Ltd), P15-500 (Circor Aerospace, Inc. Dba Circor Aerospace Inc), MIL-V-81940/1 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), M81940/1 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 3 more.
There are 6 known substitutes for 4820-01-104-5169: 6130-00-004-1742, 4820-01-087-2221, 4820-01-298-8416 and 3 more. Verify interchangeability with system specifications before substitution.
Key specifications for MIL-V-81940/1B: Valve Operation Method: MANUAL; Flow Control Device: POPPET; Connection Style: PLAIN (TUBE) SECOND END; Maximum Operating Temp: 275.0 FAHRENHEIT SINGLE RESPONSE DEGF. 20 total characteristics are documented in the Federal Logistics Information System.