The Ring,piston, cataloged under National Stock Number 3040-01-585-2000, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Greene Tweed & Co Inc. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3040-01-585-2000 |
| Primary Part Number | 220FTE-160-4567 |
| Item Name | Ring,piston |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Greene Tweed & Co Inc |
| Status | ACTIVE |
| Bore Diameter Oversize | 1.370 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 |
|---|---|
| 220FTE-160-4567 PRIMARY | Greene Tweed & Co Inc (USA) |
| Reference | Meaning |
|---|---|
| 200413558-01 | 1/2 Source control — Government-approved source U.S. Government activity |
NSN 3040-01-585-2000 is a Ring,piston, manufactured by Greene Tweed & Co Inc, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-585-2000 has 1 manufacturer part number on file: 220FTE-160-4567 (Greene Tweed & Co Inc).
Key specifications for 220FTE-160-4567: Bore Diameter Oversize: 1.370 INCHES IN; Special Features: 1.617 O.D. X 1.300 WIDE; Part Name Assigned by Controlling Agency: SEAL,AFT RAMP CYLINDER ASSEMBLY; End Item Identification: C-5 AIRCRAFT. 1 specification is 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.