The Shaft Assembly,flexible, cataloged under National Stock Number 6680-00-251-2249, 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 Fwd Seagrave Holdings Lp. 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. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6680-00-251-2249 |
| Primary Part Number | 199416 |
| Item Name | Shaft Assembly,flexible |
| FSC / FSG | 6680 / 66 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments |
| Manufacturer | Fwd Seagrave Holdings Lp |
| Status | ACTIVE |
| Cross Section Size and Location | 0.104 INCHES NOMINAL ACROSS FLATS SECOND END IN |
| Cross Section Size and Location | 0.203 INCHES NOMINAL DIAMETER FIRST END IN |
| End Overall Diameter | 0.750 INCHES NOMINAL SECOND END IN |
| End Overall Diameter | 1.000 INCHES NOMINAL FIRST END IN |
| End Connection Type | THREADED INTERNAL BOTH ENDS |
| Thread Depth | 0.562 INCHES NOMINAL BOTH ENDS IN |
| Thread Location | INTERNAL BOTH ENDS |
| Core Diameter | 0.150 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND BOTH ENDS |
| Casing Length Between Ferrules | 38.000 INCHES NOMINAL IN |
| Core Rotation Direction | CLOCKWISE |
| Shank Outside Diameter | 0.500 INCHES NOMINAL SECOND END IN |
| Shank Outside Diameter | 0.687 INCHES NOMINAL FIRST END IN |
| Core Removability | REMOVABLE |
| Core Overall Length | 39.500 INCHES NOMINAL IN |
| Screw Thread Series Designator | UNS FIRST END |
| Screw Thread Series Designator | UNF SECOND END |
| Wrenching Facility Outside Diameter | 0.687 INCHES NOMINAL SECOND END IN |
| Wrenching Facility Outside Diameter | 0.938 INCHES NOMINAL FIRST END IN |
| Thread Class | 2B BOTH ENDS |
| Wrenching Facility Type | KNURLED SURFACE BOTH ENDS |
| Material | STEEL CORE |
| Material | STEEL CASING |
| Casing Outside Diameter | 0.445 INCHES NOMINAL IN |
| End Type | ROUND KEYED FIRST END |
| End Type | SQUARE MALE SECOND END |
| Tip Length | 0.625 INCHES NOMINAL SECOND END IN |
| Tip Length | 0.875 INCHES NOMINAL 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 |
|---|---|
| 199416 PRIMARY | Fwd Seagrave Holdings Lp (USA) |
NSN 6680-00-251-2249 is a Shaft Assembly,flexible, manufactured by Fwd Seagrave Holdings Lp, classified under FSC 6680, Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments. Status: active.
NSN 6680-00-251-2249 has 1 manufacturer part number on file: 199416 (Fwd Seagrave Holdings Lp).
1 possible match (shared part number, not a government interchangeability claim): 5950-00-645-3556. Verify interchangeability with system specifications before substitution.
Key specifications for 199416: Cross Section Size and Location: 0.104 INCHES NOMINAL ACROSS FLATS SECOND END IN; Cross Section Size and Location: 0.203 INCHES NOMINAL DIAMETER FIRST END IN; End Overall Diameter: 0.750 INCHES NOMINAL SECOND END IN; End Overall Diameter: 1.000 INCHES NOMINAL 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.