The Valve,poppet,engine, cataloged under National Stock Number 2815-00-528-6392, is classified within Federal Supply Class 2815 (Diesel Engines and Components) of the Engines, Turbines, and Components group. The manufacturer of record is Brinkley Technology Group Llc Dba Hercules Manufacturing. Government technical data includes 21 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2815-00-528-6392 |
| Primary Part Number | 125026B |
| Item Name | Valve,poppet,engine |
| FSC / FSG | 2815 / 28 — Diesel Engines and Components |
| Manufacturer | Brinkley Technology Group Llc Dba Hercules Manufacturing |
| Status | ACTIVE |
| Stem Diameter | 0.3725 INCHES MINIMUM AND 0.3735 INCHES MAXIMUM IN |
| FSC Application Data | DIESEL ENGINE |
| Head Height | 0.1870 INCHES MINIMUM AND 0.1970 INCHES MAXIMUM IN |
| Second Groove Width | 0.0937 INCHES NOMINAL IN |
| Stem Length | 4.6089 INCHES MINIMUM AND 4.6189 INCHES MAXIMUM IN |
| Seat Angle in Deg | 45.0 |
| Chamfer Length | 0.0312 INCHES NOMINAL IN |
| Neck Radius | 0.5000 INCHES NOMINAL IN |
| Metallic Hardness Rating and Location | 40.0 ROCKWELL C MINIMUM STEM |
| Metallic Hardness Rating and Location | 45.0 ROCKWELL C MAXIMUM STEM |
| Metallic Hardness Rating and Location | 65.0 SHORE SCLEROSCOPE NOMINAL TIP |
| Outside Diameter | 1.6200 INCHES MINIMUM AND 1.6300 INCHES MAXIMUM IN |
| Distance From First Groove to Stem End | 0.3125 INCHES NOMINAL IN |
| Stem Style | DOUBLE GROOVED |
| First Groove Diameter | 0.3010 INCHES MINIMUM AND 0.3070 INCHES MAXIMUM IN |
| Head Style | FLAT |
| Distance From Second Groove to Stem End | 0.4375 INCHES NOMINAL IN |
| Carbon Relief Groove | NOT INCLUDED |
| Chamfer Angle in Deg | 45.0 |
| Second Groove Diameter | 0.3010 INCHES MINIMUM AND 0.3070 INCHES MAXIMUM IN |
| First Groove Width | 0.0937 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 125026B PRIMARY | Brinkley Technology Group Llc Dba Hercules Manufacturing (USA) |
| Reference | Meaning |
|---|---|
| 125026B | 5/9 Secondary reference Hercules Engine Co Inc |
NSN 2815-00-528-6392 is a Valve,poppet,engine, manufactured by Brinkley Technology Group Llc Dba Hercules Manufacturing, classified under FSC 2815, Diesel Engines and Components. Status: active.
NSN 2815-00-528-6392 has 1 manufacturer part number on file: 125026B (Brinkley Technology Group Llc Dba Hercules Manufacturing).
Key specifications for 125026B: Stem Diameter: 0.3725 INCHES MINIMUM AND 0.3735 INCHES MAXIMUM IN; FSC Application Data: DIESEL ENGINE; Head Height: 0.1870 INCHES MINIMUM AND 0.1970 INCHES MAXIMUM IN; Second Groove Width: 0.0937 INCHES NOMINAL IN. 21 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.