The Clamp,hub, cataloged under National Stock Number 3040-01-429-8360, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 9 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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 | 3040-01-429-8360 |
| Primary Part Number | 6894422 ITEM 28 |
| Item Name | Clamp,hub |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Clamp Securing Hole Style | THREADED |
| Style Designator | ROUND SECTIONAL, TWO BOLT SECURED |
| Material Document and Classification | QQ-S-763, CLASS 316 FED SPEC SINGLE MATERIAL RESPONSE |
| Outside Diameter | 6.500 INCHES NOMINAL IN |
| Nominal Thread Size | 0.500 INCHES IN |
| Screw Thread Series Designator | UNF |
| Bore Diameter | 4.7500 INCHES NOMINAL IN |
| Material | STEEL COMP 316 |
| Thickness | 1.380 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 |
|---|---|
| 6894422 ITEM 28 | Naval Sea Systems Command (USA) |
| 5363388 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 6894422 | 5/1 Secondary reference Naval Sea Systems Command |
| SPH-76-SS | 3/2 Design control — primary reference U.S. Government activity |
| SP76SS | 5/9 Secondary reference U.S. Government activity |
NSN 3040-01-429-8360 is a Clamp,hub, manufactured by Naval Sea Systems Command, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-429-8360 has 2 manufacturer part numbers on file: 6894422 ITEM 28 (Naval Sea Systems Command), 5363388 (Naval Sea Systems Command).
4 possible matches (shared part number, not a government interchangeability claim): 3040-01-429-8362, 3040-01-429-8418, 3040-01-429-9604. Verify interchangeability with system specifications before substitution.
Key specifications for 6894422 ITEM 28: Clamp Securing Hole Style: THREADED; Style Designator: ROUND SECTIONAL, TWO BOLT SECURED; Material Document and Classification: QQ-S-763, CLASS 316 FED SPEC SINGLE MATERIAL RESPONSE; Outside Diameter: 6.500 INCHES NOMINAL IN. 9 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.