The Collar,shaft, cataloged under National Stock Number 3040-01-502-3263, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Ringfeder Power Transmission Usa Corp Dba Ringfeder Power Transmission Usa Corporation. Government technical data includes 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3040-01-502-3263 |
| Primary Part Number | 50 X 80 RFN 7012 |
| Item Name | Collar,shaft |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Ringfeder Power Transmission Usa Corp Dba Ringfeder Power Transmission Usa Corporation |
| Status | ACTIVE |
| Securing Hole Type and Location | THREADED ALL HOLES |
| Style Designator | PLAIN ROUND |
| Outside Diameter | 3.150 INCHES NOMINAL IN |
| Securing Hole Quantity | 12 |
| Bore Diameter | 1.9690 INCHES NOMINAL IN |
| Material | STEEL |
| Thickness | 1.319 INCHES NOMINAL 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 |
|---|---|
| 50 X 80 RFN 7012 PRIMARY | Ringfeder Power Transmission Usa Corp Dba Ringfeder Power Transmission Usa Corporation (USA) |
| Reference | Meaning |
|---|---|
| SC3040-0008-1 | 7/9 Vendor item drawing reference Drs Icas, Llc |
NSN 3040-01-502-3263 is a Collar,shaft, manufactured by Ringfeder Power Transmission Usa Corp Dba Ringfeder Power Transmission Usa Corporation, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-502-3263 has 1 manufacturer part number on file: 50 X 80 RFN 7012 (Ringfeder Power Transmission Usa Corp Dba Ringfeder Power Transmission Usa Corporation).
Key specifications for 50 X 80 RFN 7012: Securing Hole Type and Location: THREADED ALL HOLES; Style Designator: PLAIN ROUND; Outside Diameter: 3.150 INCHES NOMINAL IN; Securing Hole Quantity: 12. 7 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.