The Collar,shaft, cataloged under National Stock Number 3040-01-234-7344, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. Government technical data includes 13 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3040-01-234-7344 |
| Item Name | Collar,shaft |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Status | ACTIVE |
| Securing Hole Type and Location | THREADED ALL HOLES |
| Style Designator | PLAIN ROUND |
| Material Document and Classification | QQ-S-637 FED SPEC SINGLE MATERIAL RESPONSE |
| Screw Thread Series Designator and Location | 1ST HOLE UNIFIED NATIONAL COARSE (UNC) |
| Screw Thread Series Designator and Location | 2ND HOLE UNIFIED NATIONAL COARSE (UNC) |
| Outside Diameter | 1.000 INCHES NOMINAL IN |
| Nominal Thread Size | 0.250 INCHES THREAD IN |
| Angle Between Centerlines of Securing Holes in Deg | 180.0 |
| Securing Hole Quantity | 2 |
| Surface Treatment | CADMIUM AND CHROMATE |
| Bore Diameter | 0.3800 INCHES NOMINAL IN |
| Material | STEEL COMP 1109 OR STEEL COMP 1110 OR STEEL COMP 1116 OR STEEL COMP 1117 OR STEEL COMP 1118 OR STEEL COMP 1119 OR STEEL COMP 1132 OR STEEL COMP 1137 OR STEEL COMP 1139 OR STEEL COMP 1140 OR STEEL COMP 1141 OR STEEL COMP 1144 OR STEEL COMP 1145 OR STEEL COMP 1146 OR STEEL COMP 1151 OR STEEL COMP 1211 OR STEEL COMP 1212 OR STEEL COMP 1213 OR STEEL COMP 1215 OR STEEL COMP B1111 OR STEEL COMP B1112 OR STEEL COMP B1113 OR STEEL COMP 12L14 |
| Thickness | 0.750 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 |
| Reference | Meaning |
|---|---|
| 8431011 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3040-01-234-7344 is a Collar,shaft, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
Key specifications for 3040-01-234-7344: Securing Hole Type and Location: THREADED ALL HOLES; Style Designator: PLAIN ROUND; Material Document and Classification: QQ-S-637 FED SPEC SINGLE MATERIAL RESPONSE; Screw Thread Series Designator and Location: 1ST HOLE UNIFIED NATIONAL COARSE (UNC). 13 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.