The Ring,reinforcement Transmission, cataloged under National Stock Number 2990-01-415-4323, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Wiggins Lift Co Inc. Government technical data includes 3 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2990-01-415-4323 |
| Primary Part Number | F-7-X-90 |
| Item Name | Ring,reinforcement Transmission |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | Wiggins Lift Co Inc |
| Status | ACTIVE |
| Overall Diameter | 7.312 INCHES NOMINAL IN |
| General Characteristics Item Description | 5.250 IN. ID; SIX HOLES, 0.422 IN.DIA EA, EQUALLY SPACED ON 6.375 IN. BC IN |
| Material | STEEL CORROSION RESISTING |
| 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 |
|---|---|
| F-7-X-90 PRIMARY | Wiggins Lift Co Inc (USA) |
| Reference | Meaning |
|---|---|
| 612460 | D/9 Drawing number reference only Wiggins Lift Co Inc |
| F-7-X-90 | 5/9 Secondary reference Borg-Warner Automotive Transmission and Engine Components Corp Borg and Beck Torque Systems |
| 612460 | D/9 Drawing number reference only Borg-Warner Automotive Transmission and Engine Components Corp Borg and Beck Torque Systems |
NSN 2990-01-415-4323 is a Ring,reinforcement Transmission, manufactured by Wiggins Lift Co Inc, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-01-415-4323 has 1 manufacturer part number on file: F-7-X-90 (Wiggins Lift Co Inc).
Key specifications for F-7-X-90: Overall Diameter: 7.312 INCHES NOMINAL IN; General Characteristics Item Description: 5.250 IN. ID; SIX HOLES, 0.422 IN.DIA EA, EQUALLY SPACED ON 6.375 IN. BC IN; Overall Width: 0.084 INCHES NOMINAL IN; End Item Identification: BORG-WARNER TRANSMISSION MODEL 1022-000-029. 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.