The Ring,piston, cataloged under National Stock Number 2805-01-046-2680, 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 Hartford Compressors Inc. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 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 | 2805-01-046-2680 |
| Primary Part Number | RNG39 |
| Item Name | Ring,piston |
| FSC / FSG | 2805 / 28 — Gasoline Reciprocating Engines, Except Aircraft; and Components |
| Manufacturer | Hartford Compressors Inc |
| Status | ACTIVE |
| Joint Style | VERTICAL JOINT |
| Ring Style | CONCENTRIC |
| 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 |
NSN 2805-01-046-2680 is a Ring,piston, manufactured by Hartford Compressors Inc, classified under FSC 2805, Gasoline Reciprocating Engines, Except Aircraft; and Components. Status: active.
NSN 2805-01-046-2680 has 2 manufacturer part numbers on file: RNG39 (Hartford Compressors Inc), RNG39 (Eny Supply Corp.).
1 possible match (shared part number, not a government interchangeability claim): 5331-01-277-0932. Verify interchangeability with system specifications before substitution.
Key specifications for RNG39: Overall Width: 0.1880 INCHES NOMINAL IN; Joint Style: VERTICAL JOINT; Ring Style: CONCENTRIC; Material: STEEL OVERALL. 3 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.