The Ring,piston, cataloged under National Stock Number 2805-00-008-8937, 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 Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road). Government technical data includes 11 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 2805-00-008-8937 |
| Primary Part Number | 974353-1 |
| Item Name | Ring,piston |
| FSC / FSG | 2805 / 28 — Gasoline Reciprocating Engines, Except Aircraft; and Components |
| Manufacturer | Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) |
| Status | ACTIVE |
| Distance From Pin Hole Centerline to Ring Joint Centerline | 0.460 INCHES NOMINAL IN |
| Material Document and Classification | MIL-S-25043 MIL SPEC 1ST MATERIAL RESPONSE AND AMS 5528 ASSN STD 2ND MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | PLAIN RECTANGULAR, STRAIGHT FACE |
| Distance From Pin Hole Center to Edge | 0.075 INCHES MINIMUM AND 0.080 INCHES MAXIMUM IN |
| Joint Style | VERTICAL JOINT |
| Radial Wall Thickness | 0.1510 INCHES MINIMUM AND 0.1610 INCHES MAXIMUM IN |
| Ring Style | CONCENTRIC |
| Pinhole Diameter | 0.081 INCHES MINIMUM AND 0.086 INCHES MAXIMUM IN |
| Standard Bore Diameter | 3.850 INCHES IN |
| Pin Hole Style | ROUND PINHOLE LEFT OF JOINT |
| Material | STEEL CORROSION RESISTING OVERALL |
| 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 |
|---|---|
| 974353-1 PRIMARY | Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) (USA) |
| Reference | Meaning |
|---|---|
| 974353-1 | 5/9 Secondary reference U.S. Government activity |
NSN 2805-00-008-8937 is a Ring,piston, manufactured by Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road), classified under FSC 2805, Gasoline Reciprocating Engines, Except Aircraft; and Components. Status: active.
NSN 2805-00-008-8937 has 1 manufacturer part number on file: 974353-1 (Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road)).
Key specifications for 974353-1: Distance From Pin Hole Centerline to Ring Joint Centerline: 0.460 INCHES NOMINAL IN; Overall Width: 0.0440 INCHES MINIMUM AND 0.0450 INCHES MAXIMUM IN; Material Document and Classification: MIL-S-25043 MIL SPEC 1ST MATERIAL RESPONSE AND AMS 5528 ASSN STD 2ND MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: PLAIN RECTANGULAR, STRAIGHT FACE. 11 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.