The Transmitter,liquid Quantity, cataloged under National Stock Number 6680-01-495-5174, 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 Setra Systems, Inc. Dba Gems Sensors. The record lists 5 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 6680-01-495-5174 |
| Primary Part Number | 181783 |
| Item Name | Transmitter,liquid Quantity |
| FSC / FSG | 6680 / 66 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments |
| Manufacturer | Setra Systems, Inc. Dba Gems Sensors |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| 437-6985750-074 | Naval Sea Systems Command (USA) |
| 181783 PRIMARY | Setra Systems, Inc. Dba Gems Sensors (USA) |
| 437-6985750-084 | Naval Sea Systems Command (USA) |
| 437-6985750-088 | Naval Sea Systems Command (USA) |
| 437-6985750-079 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| H673-1201-079 | 5/2 Secondary reference U.S. Government activity |
| H673-1201-074 | 5/2 Secondary reference U.S. Government activity |
| XM-79665-30-6200-W-H | 3/9 Design control — primary reference Setra Systems, Inc. Dba Gems Sensors |
| H673-1201-084 | 5/2 Secondary reference U.S. Government activity |
| H673-1201-088 | 5/2 Secondary reference U.S. Government activity |
NSN 6680-01-495-5174 is a Transmitter,liquid Quantity, manufactured by Setra Systems, Inc. Dba Gems Sensors, classified under FSC 6680, Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments. Status: active.
NSN 6680-01-495-5174 has 5 manufacturer part numbers on file: 437-6985750-074 (Naval Sea Systems Command), 181783 (Setra Systems, Inc. Dba Gems Sensors), 437-6985750-084 (Naval Sea Systems Command), 437-6985750-088 (Naval Sea Systems Command), 437-6985750-079 (Naval Sea Systems Command).
1 possible match (shared part number, not a government interchangeability claim): 5998-01-502-5602. Verify interchangeability with system specifications before substitution.
Key specifications for 181783: Special Features: LIQUID LEVEL TRANSFER, TRANSFER BRACKET MTD; End Item Identification: INDICATOR ASSY, TANK. 0 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.
NSN 6680-01-495-5174 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.