The Spring,expander,piston Ring, cataloged under National Stock Number 2805-01-098-3965, 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 Grove U.s. Llc Dba Grove Us Llc. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 2805-01-098-3965 |
| Primary Part Number | 9-904-103513 |
| Item Name | Spring,expander,piston Ring |
| FSC / FSG | 2805 / 28 — Gasoline Reciprocating Engines, Except Aircraft; and Components |
| Manufacturer | Grove U.s. Llc Dba Grove Us Llc |
| Status | ACTIVE |
| General Characteristics Item Description | MATERIAL STEEL; 2.651 IN. ID; 2.975 IN. OD; WALL THICKNESS 0.094 IN. 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 |
|---|---|
| 9-904-103513 PRIMARY | Grove U.s. Llc Dba Grove Us Llc (USA) |
| 237378 | Dana Off Highway Products, Llc (USA) |
| Reference | Meaning |
|---|---|
| 815378 | C/1 Advisory reference — outside the item-of-supply concept Caterpillar Inc Div Caterpillar Defense |
| 237378 | 5/9 Secondary reference Clark Equipment Co |
NSN 2805-01-098-3965 is a Spring,expander,piston Ring, manufactured by Grove U.s. Llc Dba Grove Us Llc, classified under FSC 2805, Gasoline Reciprocating Engines, Except Aircraft; and Components. Status: active.
NSN 2805-01-098-3965 has 2 manufacturer part numbers on file: 9-904-103513 (Grove U.s. Llc Dba Grove Us Llc), 237378 (Dana Off Highway Products, Llc).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-262-7561. Verify interchangeability with system specifications before substitution.
Key specifications for 9-904-103513: General Characteristics Item Description: MATERIAL STEEL; 2.651 IN. ID; 2.975 IN. OD; WALL THICKNESS 0.094 IN. IN. 1 specification is 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.