The Collar,shaft, cataloged under National Stock Number 3040-01-122-3985, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Aimtron Systems, Llc. Government technical data includes 12 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3040-01-122-3985 |
| Primary Part Number | 504849 |
| Item Name | Collar,shaft |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Aimtron Systems, Llc |
| Status | ACTIVE |
| Securing Hole Type and Location | THREADED ALL HOLES |
| Style Designator | PLAIN ROUND |
| Material Document and Classification | QQ-A-225/6, ALLOY 2024, T4 FED SPEC SINGLE MATERIAL RESPONSE |
| Screw Thread Series Designator and Location | ALL HOLES UNIFIED NATIONAL COARSE (UNC) |
| Outside Diameter | 0.630 INCHES NOMINAL IN |
| Nominal Thread Size | 0.138 INCHES ALL HOLES IN |
| Angle Between Centerlines of Securing Holes in Deg | 90.0 |
| Securing Hole Quantity | 2 |
| Surface Treatment | CHROMATE |
| Bore Diameter | 0.3800 INCHES MINIMUM AND 0.3850 INCHES MAXIMUM IN |
| Material | ALUMINUM ALLOY 2024 |
| Thickness | 0.440 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 |
|---|---|
| 504849 PRIMARY | Aimtron Systems, Llc (USA) |
| Reference | Meaning |
|---|---|
| 504849 | 5/9 Secondary reference Cardion Inc |
NSN 3040-01-122-3985 is a Collar,shaft, manufactured by Aimtron Systems, Llc, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-122-3985 has 1 manufacturer part number on file: 504849 (Aimtron Systems, Llc).
Key specifications for 504849: Securing Hole Type and Location: THREADED ALL HOLES; Style Designator: PLAIN ROUND; Material Document and Classification: QQ-A-225/6, ALLOY 2024, T4 FED SPEC SINGLE MATERIAL RESPONSE; Screw Thread Series Designator and Location: ALL HOLES UNIFIED NATIONAL COARSE (UNC). 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.
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.