The Lock,valve Spring Retainer, cataloged under National Stock Number 2815-01-043-8803, is classified within Federal Supply Class 2815 (Diesel Engines and Components) of the Engines, Turbines, and Components group. The manufacturer of record is Cummins Inc.. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2815-01-043-8803 |
| Primary Part Number | 205091 |
| Item Name | Lock,valve Spring Retainer |
| FSC / FSG | 2815 / 28 — Diesel Engines and Components |
| Manufacturer | Cummins Inc. |
| Status | ACTIVE |
| Minimum Inside Diameter | 0.493 INCHES IN |
| Second Groove Width | 0.020 INCHES MINIMUM AND 0.040 INCHES MAXIMUM IN |
| Thread Provision | UNTHREADED |
| Largest Outside Diameter | 7.500 INCHES NOMINAL IN |
| Distance Between First and Second Groove Centers | 0.122 INCHES MINIMUM AND 0.128 INCHES MAXIMUM IN |
| Largest Inside Diameter | 0.497 INCHES NOMINAL IN |
| Style Designator | STRAIGHT BORE W/TWO GROOVES-LOWER OUTSIDE RADIUS |
| Distance From Bottom to First Groove Center | 0.182 INCHES NOMINAL IN |
| Largest Outside Width | 0.175 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN |
| Outside Included Angle in Deg | 7.0 |
| Casehardening Indicator | NOT CASEHARDENED |
| Material | STEEL |
| First Groove Width | 0.020 INCHES MINIMUM AND 0.040 INCHES MAXIMUM 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 |
|---|---|
| 02.01 OPTION PP6188 REFERENCE 1 | Cummins Ltd (GBR) |
| 02.01 OPTION PP6188/1 | Cummins Ltd (GBR) |
| 205091 | Cummins Ltd (GBR) |
| 205091 PRIMARY | Cummins Inc. (USA) |
NSN 2815-01-043-8803 is a Lock,valve Spring Retainer, manufactured by Cummins Inc., classified under FSC 2815, Diesel Engines and Components. Status: active.
NSN 2815-01-043-8803 has 4 manufacturer part numbers on file: 02.01 OPTION PP6188 REFERENCE 1 (Cummins Ltd), 02.01 OPTION PP6188/1 (Cummins Ltd), 205091 (Cummins Ltd), 205091 (Cummins Inc.).
Key specifications for 205091: Overall Height: 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN; Minimum Inside Diameter: 0.493 INCHES IN; Second Groove Width: 0.020 INCHES MINIMUM AND 0.040 INCHES MAXIMUM IN; Thread Provision: UNTHREADED. 13 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.