The Clamp,hub, cataloged under National Stock Number 3040-01-253-0941, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Naval Inventory Control Point Mechanicsburg. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-253-0941 |
| Primary Part Number | 77C708661P9VM |
| Item Name | Clamp,hub |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Clamp Securing Hole Style | THREADED |
| Style Designator | ROUND, SINGLE BOLT SECURED |
| Material Document and Classification | QQ-S-764, TYPE 303, COND A-CANCELED FED SPEC SINGLE MATERIAL RESPONSE |
| Outside Diameter | 1.307 INCHES MINIMUM AND 1.317 INCHES MAXIMUM IN |
| Nominal Thread Size | 0.190 INCHES IN |
| Screw Thread Series Designator | UNF |
| Thread Quantity Per Inch | 32 |
| Bore Diameter | 0.6250 INCHES MINIMUM AND 0.6260 INCHES MAXIMUM IN |
| Material | STEEL COMP 303 |
| Reference Number Differentiating Characteristics | MAGNETIC PERMEABILITY SHALL NOT EXCEED 2.0 AFTER FABRICATION |
| Thickness | 0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM 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 |
|---|---|
| 77C708661P9VM | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| 77C708661P009 | C/1 Advisory reference — outside the item-of-supply concept Lockheed Martin Corporation Div Rms |
| 77C708661P9 | 3/1 Design control — primary reference Lockheed Martin Corporation Div Rms |
NSN 3040-01-253-0941 is a Clamp,hub, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-253-0941 has 1 manufacturer part number on file: 77C708661P9VM (Naval Inventory Control Point Mechanicsburg).
Key specifications for 77C708661P9VM: Clamp Securing Hole Style: THREADED; Style Designator: ROUND, SINGLE BOLT SECURED; Material Document and Classification: QQ-S-764, TYPE 303, COND A-CANCELED FED SPEC SINGLE MATERIAL RESPONSE; Outside Diameter: 1.307 INCHES MINIMUM AND 1.317 INCHES MAXIMUM IN. 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.