The Ring,piston, cataloged under National Stock Number 2805-00-511-3254, is classified within Federal Supply Class 2805 (Gasoline Reciprocating Engines, Except Aircraft; and Components) of the Engines, Turbines, and Components group. The manufacturer of record is Komatsu America Corp.. Government technical data includes 6 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2805-00-511-3254 |
| Primary Part Number | 52754D |
| Item Name | Ring,piston |
| FSC / FSG | 2805 / 28 — Gasoline Reciprocating Engines, Except Aircraft; and Components |
| Manufacturer | Komatsu America Corp. |
| Status | ACTIVE |
| Cross-Sectional Shape Style | TAPERED FACE |
| Joint Style | VERTICAL JOINT |
| Radial Wall Thickness | 0.1650 INCHES MINIMUM AND 0.1750 INCHES MAXIMUM IN |
| Ring Style | CONCENTRIC |
| Standard Bore Diameter | 4.500 INCHES IN |
| Material | IRON 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 |
|---|---|
| 52754D | Komatsu America Corp. (USA) |
| Reference | Meaning |
|---|---|
| 52754D | 5/9 Secondary reference U.S. Government activity |
| 52754D | 3/9 Design control — primary reference Komatsu American Intl Co |
NSN 2805-00-511-3254 is a Ring,piston, manufactured by Komatsu America Corp., classified under FSC 2805, Gasoline Reciprocating Engines, Except Aircraft; and Components. Status: active.
NSN 2805-00-511-3254 has 1 manufacturer part number on file: 52754D (Komatsu America Corp.).
Key specifications for 52754D: Overall Width: 0.1540 INCHES MINIMUM AND 0.1550 INCHES MAXIMUM IN; Cross-Sectional Shape Style: TAPERED FACE; Joint Style: VERTICAL JOINT; Radial Wall Thickness: 0.1650 INCHES MINIMUM AND 0.1750 INCHES MAXIMUM IN. 6 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.