The Collar,shaft, cataloged under National Stock Number 3040-00-520-6757, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 17 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-520-6757 |
| Primary Part Number | 5206757 |
| Item Name | Collar,shaft |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Surface Finish | 125 MICROINCHES INSIDE PERIPHERY |
| Surface Finish | 125 MICROINCHES BOTH BEARING FLATS |
| Surface Finish | 125 MICROINCHES OUTSIDE PERIPHERY |
| Countersink Major Diameter and Location | 0.2875 INCHES NOMINAL ALL HOLES IN |
| Securing Hole Type and Location | UNTHREADED-COUNTERSUNK ALL HOLES |
| Radius | 0.060 INCHES NOMINAL IN |
| Criticality Code Justification | ABXV |
| Style Designator | ROUND W/ SINGLE EDGE |
| Outside Diameter | 1.438 INCHES NOMINAL IN |
| Hole Diameter and Location | 0.1875 INCHES NOMINAL ALL HOLES IN |
| Countersunk Hole Angle in Deg and Location | 90.0 ALL HOLES |
| Angle Between Centerlines of Securing Holes in Deg | 180.0 |
| Securing Hole Quantity | 2 |
| Surface Treatment | PHOSPHATE |
| Bore Diameter | 0.7500 INCHES MINIMUM AND 0.7530 INCHES MAXIMUM IN |
| Material | STEEL |
| Thickness | 0.700 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 | Y |
| Part Number | Manufacturer |
|---|---|
| 5206757 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 3040-00-520-6757 is a Collar,shaft, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-520-6757 has 1 manufacturer part number on file: 5206757 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 5206757: Surface Finish: 125 MICROINCHES INSIDE PERIPHERY; Surface Finish: 125 MICROINCHES BOTH BEARING FLATS; Surface Finish: 125 MICROINCHES OUTSIDE PERIPHERY; Countersink Major Diameter and Location: 0.2875 INCHES NOMINAL ALL HOLES IN. 17 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.