The Ring,piston, cataloged under National Stock Number 3040-01-392-5379, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Busak and Shamban Inc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Ring,piston |
| FSC / FSG | 3040 — Miscellaneous Power Transmission Equipment (FSG 30) |
| Manufacturers | Busak and Shamban Inc (CAGE 25220) |
| Parameter | Value |
|---|---|
| NSN | 3040-01-392-5379 |
| Primary Part Number | 32T09500-46-1.0 |
| Item Name | Ring,piston |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Busak and Shamban Inc |
| Status | ACTIVE |
| 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 |
|---|---|
| 32T09500-46-1.0 | Busak and Shamban Inc (USA) |
| Reference | Meaning |
|---|---|
| 004C1222 | 5/9 Secondary reference Columbus Jack Corporation Div Columbus Jack |
| 004D1222-1 | 7/2 Vendor item drawing reference Columbus Jack Corporation Div Columbus Jack |
| 32T09500-46-1.0 | 3/9 Design control — primary reference Cbb Seal Co |
| 32T09500-46-1.0 | 5/9 Secondary reference Cleveland Ball Bearing Co |
NSN 3040-01-392-5379 is a Ring,piston, manufactured by Busak and Shamban Inc, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-392-5379 has 1 manufacturer part number on file: 32T09500-46-1.0 (Busak and Shamban Inc).
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.