The Collar,shaft, cataloged under National Stock Number 3040-00-495-2918, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. Government technical data includes 16 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-495-2918 |
| Item Name | Collar,shaft |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Status | ACTIVE |
| Securing Hole Type and Location | THREADED SINGLE HOLE |
| Largest Diameter Length | 0.187 INCHES NOMINAL IN |
| Criticality Code Justification | ABPH |
| Style Designator | ROUND STEPPED |
| Material Document and Classification | QQ-S-763, CLASS 302, COND A FED SPEC 1ST MATERIAL RESPONSE AND QQ-S-764, TYPE 303, COND A-CANCELED FED SPEC 2ND MATERIAL RESPONSE |
| Screw Thread Series Designator and Location | SINGLE HOLE UNIFIED NATIONAL COARSE (UNC) |
| Outside Diameter | 0.437 INCHES NOMINAL IN |
| Nominal Thread Size | 0.086 INCHES SINGLE HOLE IN |
| Angle Between Centerlines of Securing Holes in Deg | 90.0 |
| Small End Diameter | 0.3745 INCHES MINIMUM AND 0.3748 INCHES MAXIMUM IN |
| Securing Hole Quantity | 2 |
| Surface Treatment | PASSIVATE |
| Bore Diameter | 0.2812 INCHES MINIMUM AND 0.2816 INCHES MAXIMUM IN |
| Material | STEEL COMP 302 OR STEEL COMP 303 |
| Reference Number Differentiating Characteristics | ASDIFFERENTIATED BY PAC ABPH |
| Thickness | 0.362 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 |
| Reference | Meaning |
|---|---|
| MBC550 | 3/1 Design control — primary reference U.S. Government activity |
NSN 3040-00-495-2918 is a Collar,shaft, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
Key specifications for 3040-00-495-2918: Securing Hole Type and Location: THREADED SINGLE HOLE; Largest Diameter Length: 0.187 INCHES NOMINAL IN; Criticality Code Justification: ABPH; Style Designator: ROUND STEPPED. 16 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.