The Ring Set,piston, cataloged under National Stock Number 2805-00-770-2582, 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 U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 4 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through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 2805-00-770-2582 |
| Primary Part Number | 7702582 |
| Item Name | Ring Set,piston |
| FSC / FSG | 2805 / 28 — Gasoline Reciprocating Engines, Except Aircraft; and Components |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| FSC Application Data | GASOLINE ENGINE,NONAIRCRAFT |
| Ring Set Component Parts | RING PISTON,GH860B,53781,6; RING PISTON,GH959B,53781,12 |
| Piston Accommodation Quantity | 6 |
| Standard Bore Diameter | 3.781 INCHES 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 |
|---|---|
| 7702582 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 810-020 | 5/9 Secondary reference Bosch Automotive Service Solutions Inc. |
| SN2567 | 5/9 Secondary reference General Motors Corp |
| 1361S020 | 5/2 Secondary reference U.S. Government activity |
| 2104773 | 5/9 Secondary reference Military Vehicles Opn General Motors Truck and Bus Group Ms 2603-02 |
| 2104773 | C/1 Advisory reference — outside the item-of-supply concept General Motors Llc Dba General Motors Llc |
| SN2567 | C/1 Advisory reference — outside the item-of-supply concept General Motors Llc Dba General Motors Llc |
| 810-020 | 5/9 Secondary reference Spx Corp |
NSN 2805-00-770-2582 is a Ring Set,piston, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 2805, Gasoline Reciprocating Engines, Except Aircraft; and Components. Status: active.
NSN 2805-00-770-2582 has 1 manufacturer part number on file: 7702582 (U S Army Tank Automotive Command Amsta-Im-Mm).
2 possible matches (shared part number, not a government interchangeability claim): 5315-01-297-1063, 5340-01-646-2812. Verify interchangeability with system specifications before substitution.
Key specifications for 7702582: FSC Application Data: GASOLINE ENGINE,NONAIRCRAFT; Ring Set Component Parts: RING PISTON,GH860B,53781,6; RING PISTON,GH959B,53781,12; Piston Accommodation Quantity: 6; Standard Bore Diameter: 3.781 INCHES IN. 4 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.