The Clamp,hub, cataloged under National Stock Number 3040-01-233-4309, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. Government technical data includes 12 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-233-4309 |
| Item Name | Clamp,hub |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Status | ACTIVE |
| Clamp Securing Hole Style | THREADED |
| Criticality Code Justification | ZZZY |
| Style Designator | RECTANGULAR, SINGLE BOLT SECURED |
| Material Document and Classification | ASTM-B584,81346 ASSN STD SINGLE MATERIAL RESPONSE |
| Distance From Bore Centerline to End | 0.938 INCHES NOMINAL IN |
| Nominal Thread Size | 0.250 INCHES IN |
| Screw Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Thread Quantity Per Inch | 20 |
| Bore Diameter | 1.1250 INCHES MINIMUM AND 1.1270 INCHES MAXIMUM IN |
| Material | COPPER ALLOY |
| Reference Number Differentiating Characteristics | MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS |
| Thickness | 1.000 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL F — Mutilate — Cut |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | C |
| Reference | Meaning |
|---|---|
| 820-2179110-1 | 3/1 Design control — primary reference U.S. Government activity |
NSN 3040-01-233-4309 is a Clamp,hub, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
Key specifications for 3040-01-233-4309: Clamp Securing Hole Style: THREADED; Criticality Code Justification: ZZZY; Style Designator: RECTANGULAR, SINGLE BOLT SECURED; Material Document and Classification: ASTM-B584,81346 ASSN STD SINGLE MATERIAL RESPONSE. 12 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.
NSN 3040-01-233-4309 has DEMIL Code F. Demilitarization may be required before disposal or transfer to non-military entities.
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.