The Hub,body, cataloged under National Stock Number 3040-01-277-5598, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Bacharach, Inc.. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-277-5598 |
| Primary Part Number | 05-4128 |
| Item Name | Hub,body |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Bacharach, Inc. |
| Status | ACTIVE |
| Shoulder Width | 0.688 INCHES NOMINAL IN |
| Hub Inside Diameter | 1.375 INCHES NOMINAL IN |
| Style Designator | SINGLE HUB W/ SECURING HOLE(S) |
| Distance From First End Hub to Shoulder | 1.374 INCHES NOMINAL IN |
| Shoulder Outside Diameter | 3.875 INCHES NOMINAL IN |
| First End Hub Outside Diameter | 2.813 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 |
NSN 3040-01-277-5598 is a Hub,body, manufactured by Bacharach, Inc., classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-277-5598 has 2 manufacturer part numbers on file: 05-4128 (Bacharach, Inc.), SK 138 (TB Woods's Corporation).
Key specifications for 05-4128: Shoulder Width: 0.688 INCHES NOMINAL IN; Hub Inside Diameter: 1.375 INCHES NOMINAL IN; Style Designator: SINGLE HUB W/ SECURING HOLE(S); Special Features: BORE INCLUDES 0.312 IN.SQUARE KEYWAY;TAPERED HUB;SECURING HOLE QTY:2;ANGLE BETWEEN CENTERLINES IN SECURING HOLES IN DEG:90.0 DEGS;O/A LENGTH:2.062 IN.NOM IN. 6 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.