The Ring,piston, cataloged under National Stock Number 2815-00-142-5392, is classified within Federal Supply Class 2815 (Diesel Engines and Components) of the Engines, Turbines, and Components group. The manufacturer of record is Dressta North America Ltd. Government technical data includes 7 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2815-00-142-5392 |
| Primary Part Number | 630968C2 |
| Item Name | Ring,piston |
| FSC / FSG | 2815 / 28 — Diesel Engines and Components |
| Manufacturer | Dressta North America Ltd |
| Status | ACTIVE |
| FSC Application Data | TRANSMISSION,HYDRAULIC,VEHICULAR |
| Cross-Sectional Shape Style | PLAIN RECTANGULAR, STRAIGHT FACE |
| Joint Style | INTERLOCKING JOINT |
| Radial Wall Thickness | 0.0700 INCHES NOMINAL IN |
| Ring Style | CONCENTRIC |
| Standard Bore Diameter | 1.595 INCHES IN |
| Material | STEEL OVERALL |
| 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 |
|---|---|
| 630968C2 | Komatsu America Corp. (USA) |
| 249779 | Amz Alabama Inc. (USA) |
| 630968C2 PRIMARY | Dressta North America Ltd (USA) |
| 249779 | Dana Off Highway Products, Llc (USA) |
| Reference | Meaning |
|---|---|
| 215183 | 5/9 Secondary reference Clark Equipment Co |
| 630968C2 | 5/9 Secondary reference Komatsu America Corporation |
| 215183 | 5/9 Secondary reference Dana Off Highway Products, Llc |
| 4208098 | 5/9 Secondary reference Dana Off Highway Products, Llc |
| 72648 | 5/9 Secondary reference Komatsu America Corporation |
| D72648 | 5/9 Secondary reference Komatsu America Corporation |
NSN 2815-00-142-5392 is a Ring,piston, manufactured by Dressta North America Ltd, classified under FSC 2815, Diesel Engines and Components. Status: active.
NSN 2815-00-142-5392 has 4 manufacturer part numbers on file: 630968C2 (Komatsu America Corp.), 249779 (Amz Alabama Inc.), 630968C2 (Dressta North America Ltd), 249779 (Dana Off Highway Products, Llc).
4 possible matches (shared part number, not a government interchangeability claim): 6105-01-127-8407, 5330-01-411-0127, 1630-01-418-3177. Verify interchangeability with system specifications before substitution.
Key specifications for 630968C2: FSC Application Data: TRANSMISSION,HYDRAULIC,VEHICULAR; Overall Width: 0.1250 INCHES NOMINAL IN; Cross-Sectional Shape Style: PLAIN RECTANGULAR, STRAIGHT FACE; Joint Style: INTERLOCKING JOINT. 7 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.