The Shaft,shouldered, cataloged under National Stock Number 3040-01-533-4453, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Thomas Instrument, Incorporated. 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 | 3040-01-533-4453 |
| Primary Part Number | 87921-01 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Thomas Instrument, Incorporated |
| Status | ACTIVE |
| Second End Hole Diameter | 0.0625 INCHES MINIMUM AND 0.0650 INCHES MAXIMUM IN |
| First End Tongue Thickness | 0.060 INCHES MINIMUM AND 0.062 INCHES MAXIMUM IN |
| Step Quantity | 4 |
| First End Diameter | 0.1870 INCHES MINIMUM AND 0.1875 INCHES MAXIMUM IN |
| First End Tongue Width | 0.122 INCHES MINIMUM AND 0.124 INCHES MAXIMUM IN |
| First End Step Length | 0.160 INCHES NOMINAL IN |
| Second End Diameter | 0.1870 INCHES MINIMUM AND 0.1875 INCHES MAXIMUM IN |
| Largest Step Diameter | 0.187 INCHES NOMINAL IN |
| First End Style | RECTANGULAR |
| Material Document and Classification | AMS 5640 TYPE1 303 COND AX (1/4) RND BAR ASSN STD SINGLE MATERIAL RESPONSE |
| Second End Slot Depth | 0.060 INCHES NOMINAL IN |
| Second End Distance From Hole Center to End | 0.260 INCHES NOMINAL IN |
| Second End Hole Depth | 0.187 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| Second End Slot Width | 0.047 INCHES NOMINAL IN |
| Second End Style | CROSS DRILLED HOLE AND SLOTTED |
| Material | STEEL CORROSION RESISTING |
| 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 |
|---|---|
| 87921-01 PRIMARY | Thomas Instrument, Incorporated (USA) |
NSN 3040-01-533-4453 is a Shaft,shouldered, manufactured by Thomas Instrument, Incorporated, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-533-4453 has 1 manufacturer part number on file: 87921-01 (Thomas Instrument, Incorporated).
Key specifications for 87921-01: Second End Hole Diameter: 0.0625 INCHES MINIMUM AND 0.0650 INCHES MAXIMUM IN; First End Tongue Thickness: 0.060 INCHES MINIMUM AND 0.062 INCHES MAXIMUM IN; Step Quantity: 4; First End Diameter: 0.1870 INCHES MINIMUM AND 0.1875 INCHES MAXIMUM 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.