The Ring Set,piston, cataloged under National Stock Number 2805-01-170-7863, 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 Trelleborg Sealing Solutions Us, Inc.. Government technical data includes 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2805-01-170-7863 |
| Primary Part Number | S30071-326 |
| Item Name | Ring Set,piston |
| FSC / FSG | 2805 / 28 — Gasoline Reciprocating Engines, Except Aircraft; and Components |
| Manufacturer | Trelleborg Sealing Solutions Us, Inc. |
| Status | ACTIVE |
| FSC Application Data | SERVOCYLINDER ASSEMBLY,HYDRLIC |
| Piston Accommodation Quantity | 1 |
| Standard Bore Diameter | 1.995 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 |
|---|---|
| S30071-326 PRIMARY | Trelleborg Sealing Solutions Us, Inc. (USA) |
| Reference | Meaning |
|---|---|
| S30071-326 | 5/9 Secondary reference U.S. Government activity |
NSN 2805-01-170-7863 is a Ring Set,piston, manufactured by Trelleborg Sealing Solutions Us, Inc., classified under FSC 2805, Gasoline Reciprocating Engines, Except Aircraft; and Components. Status: active.
NSN 2805-01-170-7863 has 1 manufacturer part number on file: S30071-326 (Trelleborg Sealing Solutions Us, Inc.).
Key specifications for S30071-326: FSC Application Data: SERVOCYLINDER ASSEMBLY,HYDRLIC; Piston Accommodation Quantity: 1; Standard Bore Diameter: 1.995 INCHES IN. 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.