The Shaft Assembly,flexible, cataloged under National Stock Number 6680-00-091-9718, is classified within Federal Supply Class 6680 (Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments) of the Instruments and Laboratory Equipment group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 28 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6680-00-091-9718 |
| Primary Part Number | 7344191 LINE 37 P/N 7356889 |
| Item Name | Shaft Assembly,flexible |
| FSC / FSG | 6680 / 66 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Width Across Flats | 0.750 INCHES NOMINAL SECOND END IN |
| Width Across Flats | 1.000 INCHES NOMINAL FIRST END IN |
| Cross Section Size and Location | 0.101 INCHES MINIMUM ACROSS FLATS AND 0.104 INCHES MAXIMUM ACROSS FLATS SECOND END IN |
| Cross Section Size and Location | 0.150 INCHES MINIMUM DIAMETER AND 0.153 INCHES MAXIMUM DIAMETER FIRST END IN |
| Casing Protective Device Type | RUBBER COVER |
| Thread Depth | 0.375 INCHES NOMINAL BOTH ENDS IN |
| Thread Location | INTERNAL BOTH ENDS |
| Core Diameter | 0.150 INCHES NOMINAL IN |
| Torsional Deflection Rating | NOT RATED |
| Thread Direction | RIGHT-HAND BOTH ENDS |
| Casing Length Between Ferrules | 180.000 INCHES NOMINAL IN |
| Core Rotation Direction | CLOCKWISE |
| Departure From Cited Document | AS MODIFIED BY LG BETWEEN FERRULES |
| Core Removability | REMOVABLE |
| Core Overall Length | 180.960 INCHES MINIMUM AND 181.370 INCHES MAXIMUM IN |
| Screw Thread Series Designator | UNS FIRST END |
| Screw Thread Series Designator | UNF SECOND END |
| Surface Treatment | ZINC CASING |
| Thread Class | 2B BOTH ENDS |
| Wrenching Facility Type | HEXAGON BOTH ENDS |
| Material | STEEL CORE |
| Material | RUBBER CASING |
| Casing Outside Diameter | 0.445 INCHES NOMINAL IN |
| Minimum Operating Radius | 5.000 INCHES IN |
| End Type | ROUND KEYED FIRST END |
| End Type | SQUARE MALE SECOND END |
| Tip Length | 0.380 INCHES MINIMUM AND 0.420 INCHES MAXIMUM SECOND END IN |
| Tip Length | 0.700 INCHES MINIMUM AND 0.950 INCHES MAXIMUM FIRST END 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 |
|---|---|
| 7344191 LINE 37 P/N 7356889 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 6680000919718 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
| 7344191 | D/9 Drawing number reference only U S Army Tank Automotive Command Amsta-Im-Mm |
| 6680PL1479520 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 7356889 | 5/1 Secondary reference U S Army Tank Automotive Command Amsta-Im-Mm |
NSN 6680-00-091-9718 is a Shaft Assembly,flexible, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 6680, Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments. Status: active.
NSN 6680-00-091-9718 has 1 manufacturer part number on file: 7344191 LINE 37 P/N 7356889 (U S Army Tank Automotive Command Amsta-Im-Mm).
5 possible matches (shared part number, not a government interchangeability claim): 6680-00-112-0227, 6680-00-795-2787, 6680-00-798-7478. Verify interchangeability with system specifications before substitution.
Key specifications for 7344191 LINE 37 P/N 7356889: Width Across Flats: 0.750 INCHES NOMINAL SECOND END IN; Width Across Flats: 1.000 INCHES NOMINAL FIRST END IN; Cross Section Size and Location: 0.101 INCHES MINIMUM ACROSS FLATS AND 0.104 INCHES MAXIMUM ACROSS FLATS SECOND END IN; Cross Section Size and Location: 0.150 INCHES MINIMUM DIAMETER AND 0.153 INCHES MAXIMUM DIAMETER FIRST END IN. 28 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.