The Hub,body, cataloged under National Stock Number 3040-00-712-9475, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Telemechanics Inc. Government technical data includes 7 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-712-9475 |
| Primary Part Number | 161781 |
| Item Name | Hub,body |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Telemechanics Inc |
| Status | ACTIVE |
| Second End Hub Outside Diameter | 0.500 INCHES NOMINAL IN |
| Shoulder Width | 0.124 INCHES NOMINAL IN |
| Hub Inside Diameter | 0.374 INCHES NOMINAL IN |
| Style Designator | DOUBLE HUB W/ SECRING HOLE(S) |
| Material | STEEL |
| Shoulder Outside Diameter | 1.000 INCHES NOMINAL IN |
| First End Hub Outside Diameter | 0.563 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 |
|---|---|
| 161781 PRIMARY | Telemechanics Inc (USA) |
| Reference | Meaning |
|---|---|
| 161781 | 5/9 Secondary reference At and T Corp |
| 161781 | 5/9 Secondary reference American Telephone and Telegraph Co |
NSN 3040-00-712-9475 is a Hub,body, manufactured by Telemechanics Inc, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-712-9475 has 1 manufacturer part number on file: 161781 (Telemechanics Inc).
1 possible match (shared part number, not a government interchangeability claim): 5961-01-194-7623. Verify interchangeability with system specifications before substitution.
Key specifications for 161781: Second End Hub Outside Diameter: 0.500 INCHES NOMINAL IN; Shoulder Width: 0.124 INCHES NOMINAL IN; Hub Inside Diameter: 0.374 INCHES NOMINAL IN; Style Designator: DOUBLE HUB W/ SECRING HOLE(S). 7 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.