The Valve,poppet,engine, cataloged under National Stock Number 2815-00-607-2981, is classified within Federal Supply Class 2815 (No Item Name Available) of the Engines, Turbines, and Components group. The primary manufacturer of record is Cummins Inc.. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2815-00-607-2981 |
| Primary Part Number | 43187 |
| Item Name | Valve,poppet,engine |
| FSC / FSG | 2815 / 28 — No Item Name Available |
| Manufacturer | Cummins Inc. |
| Status | ACTIVE |
| Stem Length | 10.4750 INCHES MINIMUM AND 10.4890 INCHES MAXIMUM IN |
| Head Height | 0.3050 INCHES MINIMUM AND 0.3200 INCHES MAXIMUM IN |
| Neck Radius | 1.1150 INCHES MINIMUM AND 1.1350 INCHES MAXIMUM IN |
| Metallic Hardness Rating and Location | 40.0 ROCKWELL C MINIMUM TIP AND 50.0 ROCKWELL C MAXIMUM TIP |
| Chamfer Angle in Deg | 45.0 |
| Distance From Second Groove to Stem End | 0.8090 INCHES MINIMUM AND 0.8130 INCHES MAXIMUM IN |
| Outside Diameter | 2.7450 INCHES MINIMUM AND 2.7550 INCHES MAXIMUM IN |
| Second Groove Width | 0.1875 INCHES MINIMUM AND 0.1930 INCHES MAXIMUM IN |
| Carbon Relief Groove | NOT INCLUDED |
| Stem Diameter | 0.7450 INCHES NOMINAL IN |
| Chamfer Length | 0.0200 INCHES MINIMUM AND 0.0400 INCHES MAXIMUM IN |
| Head Style | MUSHROOM |
| Seat Angle in Deg | 30.0 |
| Stem Style | DOUBLE GROOVED |
| Second Groove Diameter | 0.6260 INCHES MINIMUM IN |
| First Groove Diameter | 0.6210 INCHES MINIMUM AND 0.6260 INCHES MAXIMUM IN |
| First Groove Width | 0.1875 INCHES MINIMUM AND 0.1930 INCHES MAXIMUM IN |
| Distance From First Groove to Stem End | 0.4340 INCHES MINIMUM AND 0.4400 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 2815-00-607-2981 is a Valve,poppet,engine, manufactured by Cummins Inc., classified under FSC 2815 (No Item Name Available). Status: active.
NSN 2815-00-607-2981 has 2 cross-referenced part numbers: 43187 (Cummins Inc.), CV615 (Eaton Corp Spring Div).
There are 4 known substitutes for 2815-00-607-2981: 5895-00-320-8970, 5950-00-649-8349, 5950-01-169-0025 and 1 more. Verify interchangeability with system specifications before substitution.
Key specifications for 43187: Stem Length: 10.4750 INCHES MINIMUM AND 10.4890 INCHES MAXIMUM IN; Head Height: 0.3050 INCHES MINIMUM AND 0.3200 INCHES MAXIMUM IN; Neck Radius: 1.1150 INCHES MINIMUM AND 1.1350 INCHES MAXIMUM IN; Metallic Hardness Rating and Location: 40.0 ROCKWELL C MINIMUM TIP AND 50.0 ROCKWELL C MAXIMUM TIP. 18 total characteristics are documented in the Federal Logistics Information System.