The Shaft,straight, cataloged under National Stock Number 3040-00-892-2537, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is L3 Technologies, Inc. Div L3 Keo. Government technical data includes 11 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3040-00-892-2537 |
| Primary Part Number | A566-42 |
| Item Name | Shaft,straight |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | L3 Technologies, Inc. Div L3 Keo |
| Status | ACTIVE |
| Surface Finish | 16.0 MICROINCHES |
| FSC Application Data | PERISCOPE,SUBMARINE |
| First End Diameter | 0.2497 INCHES MINIMUM AND 0.2499 INCHES MAXIMUM IN |
| Second End Diameter | 0.2497 INCHES MINIMUM AND 0.2499 INCHES MAXIMUM IN |
| First End Style | PLAIN |
| Second End Groove Diameter | 0.2320 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| Second End Groove Width | 0.0470 INCHES NOMINAL IN |
| Second End Distance From End to Groove | 0.188 INCHES NOMINAL IN |
| Second End Style | CIRCULAR GROOVED |
| Material | STEEL COMP 303 |
| 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 |
|---|---|
| A566-42 PRIMARY | L3 Technologies, Inc. Div L3 Keo (USA) |
| Reference | Meaning |
|---|---|
| A566-42 | 5/9 Secondary reference Chatham Precision Inc |
NSN 3040-00-892-2537 is a Shaft,straight, manufactured by L3 Technologies, Inc. Div L3 Keo, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-892-2537 has 1 manufacturer part number on file: A566-42 (L3 Technologies, Inc. Div L3 Keo).
Key specifications for A566-42: Surface Finish: 16.0 MICROINCHES; FSC Application Data: PERISCOPE,SUBMARINE; First End Diameter: 0.2497 INCHES MINIMUM AND 0.2499 INCHES MAXIMUM IN; Second End Diameter: 0.2497 INCHES MINIMUM AND 0.2499 INCHES MAXIMUM IN. 11 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.