The Hub,body, cataloged under National Stock Number 3040-00-009-5197, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Roller Bearing Co of America, Inc Div Pic Design. Government technical data includes 11 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3040-00-009-5197 |
| Primary Part Number | K2-51A |
| Item Name | Hub,body |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Roller Bearing Co of America, Inc Div Pic Design |
| Status | ACTIVE |
| Second End Hub Outside Diameter | 0.6875 INCHES NOMINAL IN |
| Shoulder Width | 0.063 INCHES NOMINAL IN |
| Hub Inside Diameter | 0.3748 INCHES NOMINAL IN |
| Style Designator | DOUBLE HUB, SPLIT AND SOLID |
| Material Document and Classification | COMP 303 FED SPEC SINGLE MATERIAL RESPONSE |
| Surface Treatment | PASSIVATE |
| Distance From First End Hub to Shoulder | 0.313 INCHES NOMINAL IN |
| Material | STEEL |
| Distance From Second End Hub to Shoulder | 0.125 INCHES NOMINAL IN |
| Shoulder Outside Diameter | 1.000 INCHES NOMINAL IN |
| First End Hub Outside Diameter | 0.437 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 |
|---|---|
| K2-51A PRIMARY | Roller Bearing Co of America, Inc Div Pic Design (USA) |
| Reference | Meaning |
|---|---|
| 69423-4 | 7/2 Vendor item drawing reference U.S. Government activity |
NSN 3040-00-009-5197 is a Hub,body, manufactured by Roller Bearing Co of America, Inc Div Pic Design, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-009-5197 has 1 manufacturer part number on file: K2-51A (Roller Bearing Co of America, Inc Div Pic Design).
Key specifications for K2-51A: Second End Hub Outside Diameter: 0.6875 INCHES NOMINAL IN; Shoulder Width: 0.063 INCHES NOMINAL IN; Hub Inside Diameter: 0.3748 INCHES NOMINAL IN; Style Designator: DOUBLE HUB, SPLIT AND SOLID. 11 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.