The Shaft Assembly,flexible, cataloged under National Stock Number 3040-00-653-9606, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Fairbanks Morse, Llc. Government technical data includes 18 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-653-9606 |
| Primary Part Number | 16704010 |
| Item Name | Shaft Assembly,flexible |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Fairbanks Morse, Llc |
| Status | ACTIVE |
| Width Across Flats | 1.000 INCHES NOMINAL BOTH ENDS1.000 INCHES NOMINAL BOTH ENDS IN |
| Casing Protective Device Type | PLASTIC COVERPLASTIC COVER |
| Thread Depth | 0.405 INCHES NOMINAL BOTH ENDS0.405 INCHES NOMINAL BOTH ENDS IN |
| Thread Location | INTERNAL BOTH ENDSINTERNAL BOTH ENDS |
| Core Diameter | 0.145 INCHES NOMINAL0.145 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND BOTH ENDSRIGHT-HAND BOTH ENDS |
| Casing Length Between Ferrules | 17.500 INCHES NOMINAL17.500 INCHES NOMINAL IN |
| Core Rotation Direction | CLOCKWISECLOCKWISE |
| Shank Outside Diameter | 0.503 INCHES NOMINAL BOTH ENDS0.503 INCHES NOMINAL BOTH ENDS IN |
| Core Removability | REMOVABLEREMOVABLE |
| Core Overall Length | 19.875 INCHES NOMINAL19.875 INCHES NOMINAL IN |
| Screw Thread Series Designator | UNS BOTH ENDSUNS BOTH ENDS |
| Thread Class | 2B BOTH ENDS2B BOTH ENDS |
| Wrenching Facility Type | HEXAGON BOTH ENDSHEXAGON BOTH ENDS |
| Material | STEEL CASINGSTEEL CASING |
| Material | STEEL CORESTEEL CORE |
| Shoulder Outside Diameter | 0.750 INCHES NOMINAL BOTH ENDS0.750 INCHES NOMINAL BOTH ENDS IN |
| Casing Outside Diameter | 0.500 INCHES NOMINAL0.500 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 |
| Part Number | Manufacturer |
|---|---|
| 16704010 PRIMARY | Fairbanks Morse, Llc (USA) |
| Reference | Meaning |
|---|---|
| ND1690A | 5/9 Secondary reference U.S. Government activity |
| 16704010 | 3/9 Design control — primary reference U.S. Government activity |
NSN 3040-00-653-9606 is a Shaft Assembly,flexible, manufactured by Fairbanks Morse, Llc, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-653-9606 has 1 manufacturer part number on file: 16704010 (Fairbanks Morse, Llc).
Key specifications for 16704010: Width Across Flats: 1.000 INCHES NOMINAL BOTH ENDS1.000 INCHES NOMINAL BOTH ENDS IN; Casing Protective Device Type: PLASTIC COVERPLASTIC COVER; Thread Depth: 0.405 INCHES NOMINAL BOTH ENDS0.405 INCHES NOMINAL BOTH ENDS IN; Overall Length: 22.875 INCHES NOMINAL22.875 INCHES NOMINAL IN. 18 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.