The Ring,piston, cataloged under National Stock Number 3040-01-025-2832, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 3 specifications, 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-025-2832 |
| Primary Part Number | 859989-46 |
| Item Name | Ring,piston |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Criticality Code Justification | FEAT |
| Material Document and Classification | HAYNES ALLOY NUMBER 25 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| Material | COBALT COMP 25 OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Part Number | Manufacturer |
|---|---|
| 859989-46 | S3 Aerodefense Llc (USA) |
| 859989-46 PRIMARY | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| 859989-46 | 5/9 Secondary reference Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) |
| 859989-46 | 5/9 Secondary reference Service & Sales Inc |
| 859989-46 | 5/9 Secondary reference U.S. Government activity |
| 859989-46 | 5/9 Secondary reference U.S. Government activity |
| 859989-46 | 5/9 Secondary reference Honeywell International Inc. Dba Honeywell International |
NSN 3040-01-025-2832 is a Ring,piston, manufactured by The Boeing Company Div Defense, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-025-2832 has 2 manufacturer part numbers on file: 859989-46 (S3 Aerodefense Llc), 859989-46 (The Boeing Company Div Defense).
Key specifications for 859989-46: Criticality Code Justification: FEAT; Material Document and Classification: HAYNES ALLOY NUMBER 25 MFR REF SINGLE MATERIAL RESPONSE OVERALL; Special Features: FLIGHT SAFETY CRITICAL; Material: COBALT COMP 25 OVERALL. 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.