The Ring,piston, cataloged under National Stock Number 2805-00-593-3703, is classified within Federal Supply Class 2805 (Gasoline Reciprocating Engines, Except Aircraft; and Components) of the Engines, Turbines, and Components group. Government technical data includes 9 specifications, cited from the U.S. Government catalog. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2805-00-593-3703 |
| Item Name | Ring,piston |
| FSC / FSG | 2805 / 28 — Gasoline Reciprocating Engines, Except Aircraft; and Components |
| Status | ACTIVE |
| Material Document and Classification | AISI ASSN STD SINGLE MATERIAL RESPONSE EXPANDER |
| Material Document and Classification | TURCON ZZ-53,FSCM 97820 MFR REF SINGLE MATERIAL RESPONSE TOP |
| Cross-Sectional Shape Style | PLAIN RECTANGULAR, TWO PIECE, STRAIGHT FACE |
| Joint Style | STEP JOINT |
| Radial Wall Thickness | 0.2500 INCHES NOMINAL IN |
| Ring Style | CONCENTRIC |
| Standard Bore Diameter | 9.000 INCHES IN |
| Material | PLASTIC TOP |
| Material | STEEL COMP 301 EXPANDER |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| S11052-94Q | C/1 Advisory reference — outside the item-of-supply concept Trelleborg Sealing Solutions Us, Inc. |
| S11052-94Q | 5/9 Secondary reference U.S. Government activity |
| S11052-940 | C/1 Advisory reference — outside the item-of-supply concept Trelleborg Sealing Solutions Us, Inc. |
| 11052-94Q | C/1 Advisory reference — outside the item-of-supply concept Trelleborg Sealing Solutions Us, Inc. |
| S11052-940 | 5/9 Secondary reference U.S. Government activity |
| 11052-94Q | 3/9 Design control — primary reference U.S. Government activity |
NSN 2805-00-593-3703 is a Ring,piston, classified under FSC 2805, Gasoline Reciprocating Engines, Except Aircraft; and Components. Status: active.
Key specifications for 2805-00-593-3703: Overall Width: 0.0910 INCHES NOMINAL IN; Material Document and Classification: AISI ASSN STD SINGLE MATERIAL RESPONSE EXPANDER; Material Document and Classification: TURCON ZZ-53,FSCM 97820 MFR REF SINGLE MATERIAL RESPONSE TOP; Cross-Sectional Shape Style: PLAIN RECTANGULAR, TWO PIECE, STRAIGHT FACE. 9 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.