Part Details
When sourcing hardware for reciprocating internal combustion engines, understanding the physical specifications of an ENGINE POPPET VALVE is critical. Listed at https://part.sale/parts/nsn/2815010620855.html, this mushroom or tulip-shaped component features a circular head with a conical face and an extended stem. Its primary mechanical function is to regulate the intake of the incoming fuel-air mixture or air into the combustion chamber, as well as manage the exit of exhaust gases.
Technical Specifications
The engineering layout of this valve is built for heavy-duty reliability. Key physical dimensions and material compositions include:
- Materials: Steel stem with a corrosion-resisting steel head.
- Head Design: Flat head style with a nominal height of 0.1500 inches and an outside diameter of 1.3750 inches.
- Angles and Radii: A 45.0-degree seat angle, a 45.0-degree chamfer angle with a 0.3125-inch chamfer length, and a 0.2500-inch nominal neck radius.
- Stem Specifications: Grooved stem style with a stem length of 5.4062 inches and a stem diameter of 0.3125 inches.
- Groove Dimensions: Groove diameter measures 0.3125 inches nominal (with a groove diameter of 0.2560 inches nominal) and a groove width of 0.01875 inches. The distance from the groove to the stem end is 0.2812 inches nominal.
- Additional Features: Includes two valve keeper halves; carbon relief groove is not included.
Manufacturers and Cross-Reference Data
This engine poppet valve is tied to several manufacturing entities and alternative part numbers across the defense and heavy equipment sectors:
- E.C.A Etablissement Central Des Approvisionnements Des Forces (CAGE: A00AM) – Part Number: 2815010620855
- Military Vehicles Opn General Motors Truck And Bus Group (CAGE: 23862) – Part Number: 5149041
- MTU America Inc. (CAGE: 72582) – Part Numbers: 5149771, 5149041, 5106136
- Oshkosh Corporation (CAGE: 45152) – Part Numbers: 20TN590, 2GH545
- Oshkosh Defense, LLC (CAGE: 75Q65) – Part Number: 20TN590
- Terex Equipment Limited DBA Construction Equipment (CAGE: K4285) – Part Number: 5149041
Applications and End Item Identification
This specific valve is utilized in rugged, heavy-duty logistics and transport vehicles. Its end item applications include:
- HEMTT (Heavy Expanded Mobility Tactical Truck) – NSN 2320-01-097-0260
- PLS (Palletized Loading System) – NSNs 2320-01-304-2277 and 2320-01-304-2278