The Collar,shaft, cataloged under National Stock Number 3040-01-004-9158, 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 14 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-004-9158 |
| Primary Part Number | 8734188 |
| Item Name | Collar,shaft |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Counterbore Depth and Location | 0.3750 INCHES NOMINAL 1ST HOLE IN |
| Securing Hole Type and Location | THREADED ALL HOLES |
| Largest Diameter Length | 0.625 INCHES NOMINAL IN |
| Style Designator | ROUND STEPPED |
| Material Document and Classification | ASTM 400-69 ASSN STD SINGLE MATERIAL RESPONSE |
| Outside Diameter | 1.375 INCHES NOMINAL IN |
| Hole Diameter and Location | 0.1380 INCHES NOMINAL ALL HOLES IN |
| Angle Between Centerlines of Securing Holes in Deg | 90.0 |
| Small End Diameter | 1.125 INCHES NOMINAL IN |
| Securing Hole Quantity | 4 |
| Bore Diameter | 0.4780 INCHES MINIMUM AND 0.4840 INCHES MAXIMUM IN |
| Material | STEEL |
| Counterbore Diameter and Location | 0.8810 INCHES MINIMUM 1ST HOLE AND 0.8860 INCHES MAXIMUM 1ST HOLE IN |
| Thickness | 1.375 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 |
|---|---|
| 8734188 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 3040010049158 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
NSN 3040-01-004-9158 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 3040-01-004-9158 has 1 manufacturer part number on file: 8734188 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 8734188: Counterbore Depth and Location: 0.3750 INCHES NOMINAL 1ST HOLE IN; Securing Hole Type and Location: THREADED ALL HOLES; Largest Diameter Length: 0.625 INCHES NOMINAL IN; Style Designator: ROUND STEPPED. 14 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.