The Hub,body, cataloged under National Stock Number 3040-01-324-8554, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Knowles Mfg Co. Government technical data includes 2 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-324-8554 |
| Primary Part Number | 500-1 |
| Item Name | Hub,body |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Knowles Mfg Co |
| Status | ACTIVE |
| Shoulder Width | 0.250 INCHES NOMINAL IN |
| Distance From First End Hub to Shoulder | 2.750 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 |
|---|---|
| 500-1 | Knowles Mfg Co (USA) |
| Reference | Meaning |
|---|---|
| 500-1 | 5/9 Secondary reference Schuette Manufacturing and Steel Sales, Inc |
| 2810510 | 3/9 Design control — primary reference Q S D Inc |
| 104985 | 5/9 Secondary reference French and Hecht Div of Kelsey-Hayes Co |
| 009-1 | 5/9 Secondary reference Knowles Mfg Co |
| 100-60427 | D/9 Drawing number reference only Knowles Mfg Co |
NSN 3040-01-324-8554 is a Hub,body, manufactured by Knowles Mfg Co, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-324-8554 has 1 manufacturer part number on file: 500-1 (Knowles Mfg Co).
2 possible matches (shared part number, not a government interchangeability claim): 7710-01-438-9277, 8470-01-620-3101. Verify interchangeability with system specifications before substitution.
Key specifications for 500-1: Shoulder Width: 0.250 INCHES NOMINAL IN; Special Features: SECURING HOLE QTY:5;O/A LENGTH:4.375 IN.NOM IN; End Item Identification: 3825-01-314-2926; Distance From First End Hub to Shoulder: 2.750 INCHES NOMINAL IN. 2 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.