The Ring,piston, cataloged under National Stock Number 2805-00-989-7817, 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 Ingersoll-Rand Company Dba Ingersoll-Rand. Government technical data includes 7 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2805-00-989-7817 |
| Primary Part Number | 30627285 |
| Item Name | Ring,piston |
| FSC / FSG | 2805 / 28 — Gasoline Reciprocating Engines, Except Aircraft; and Components |
| Manufacturer | Ingersoll-Rand Company Dba Ingersoll-Rand |
| Status | ACTIVE |
| FSC Application Data | PISTON,GENERATING PLANT,LIQUID OXYGEN |
| Cross-Sectional Shape Style | TAPERED FACE |
| Joint Style | VERTICAL JOINT |
| Radial Wall Thickness | 0.0770 INCHES MINIMUM AND 0.0780 INCHES MAXIMUM IN |
| Ring Style | CONCENTRIC |
| Standard Bore Diameter | 1.875 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 |
|---|---|
| 30627285 PRIMARY | Ingersoll-Rand Company Dba Ingersoll-Rand (USA) |
| Reference | Meaning |
|---|---|
| 32013229 | 5/9 Secondary reference Ingersoll Rand Co |
| X1440T29B | 5/9 Secondary reference U.S. Government activity |
| R63136B188 | 5/9 Secondary reference U.S. Government activity |
| X1440T29B | 5/9 Secondary reference Ingersoll Rand Co |
| 32013229 | 5/9 Secondary reference U.S. Government activity |
NSN 2805-00-989-7817 is a Ring,piston, manufactured by Ingersoll-Rand Company Dba Ingersoll-Rand, classified under FSC 2805, Gasoline Reciprocating Engines, Except Aircraft; and Components. Status: active.
NSN 2805-00-989-7817 has 1 manufacturer part number on file: 30627285 (Ingersoll-Rand Company Dba Ingersoll-Rand).
1 possible match (shared part number, not a government interchangeability claim): 4310-01-458-8335. Verify interchangeability with system specifications before substitution.
Key specifications for 30627285: FSC Application Data: PISTON,GENERATING PLANT,LIQUID OXYGEN; Overall Width: 0.0930 INCHES NOMINAL IN; Cross-Sectional Shape Style: TAPERED FACE; Joint Style: VERTICAL 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.