The Indicator Subassembly,liquid Qua, cataloged under National Stock Number 6680-01-498-0691, 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 Clark-Reliance Llc. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 6680-01-498-0691 |
| Primary Part Number | TMS-3281 |
| Item Name | Indicator Subassembly,liquid Qua |
| FSC / FSG | 6680 / 66 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments |
| Manufacturer | Clark-Reliance Llc |
| Status | ACTIVE |
| Component Type and Quantity | 1 ROTOR |
| 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 |
|---|---|
| TMS-3281 PRIMARY | Clark-Reliance Llc (USA) |
| Reference | Meaning |
|---|---|
| TMS-2645 REV 2 PIECE NO.9 | D/9 Drawing number reference only U.S. Government activity |
NSN 6680-01-498-0691 is a Indicator Subassembly,liquid Qua, manufactured by Clark-Reliance Llc, classified under FSC 6680, Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments. Status: active.
NSN 6680-01-498-0691 has 1 manufacturer part number on file: TMS-3281 (Clark-Reliance Llc).
1 possible match (shared part number, not a government interchangeability claim): 6680-01-501-2212. Verify interchangeability with system specifications before substitution.
Key specifications for TMS-3281: Component Type and Quantity: 1 ROTOR; Special Features: TRIPLE PADDLE PROPELLER; End Item Identification: NSN 6680-01-498-0671. 1 specification is 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.