The Shaft,straight, cataloged under National Stock Number 3040-00-013-4372, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Breeze-Eastern Llc. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-013-4372 |
| Primary Part Number | BL-3880 |
| Item Name | Shaft,straight |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Breeze-Eastern Llc |
| Status | ACTIVE |
| Second End External Thread Length | 0.5625 INCHES NOMINAL IN |
| First End Diameter | 0.873 INCHES NOMINAL IN |
| Second End Distance From End to Flat | 0.670 INCHES NOMINAL IN |
| Second End Diameter | 0.6243 INCHES NOMINAL IN |
| First End External Thread Length | 0.4375 INCHES NOMINAL IN |
| Special Test Features | 1ST END EXTERNAL THREAD: .4375-20UNF-3 THD; 2ND END: .5625-18UNF-3 THD |
| First End Distance From End to Flat | 1.437 INCHES NOMINAL IN |
| First End Style | EXTERNAL THREADED |
| Criticality Code Justification | FEAT |
| Material Document and Classification | AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE |
| End Similarity | NOT IDENTICAL |
| Second End Style | EXTERNAL THREADED |
| First End Angle Between Keyways | 60.0 DEGREES NOMINAL |
| Material | STEEL CORROSION RESISTING |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
NSN 3040-00-013-4372 is a Shaft,straight, manufactured by Breeze-Eastern Llc, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-013-4372 has 2 manufacturer part numbers on file: BL-3880 (Breeze-Eastern Llc), BL-3880 (Bell Boeing Joint Project Office).
Key specifications for BL-3880: Second End External Thread Length: 0.5625 INCHES NOMINAL IN; First End Diameter: 0.873 INCHES NOMINAL IN; Second End Distance From End to Flat: 0.670 INCHES NOMINAL IN; Second End Diameter: 0.6243 INCHES NOMINAL IN. 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.
NSN 3040-00-013-4372 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.