The Gage,liquid Quantity,float Type, cataloged under National Stock Number 6680-01-108-5809, 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 Triman Industries Inc. Government technical data includes 15 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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 | 6680-01-108-5809 |
| Primary Part Number | 6990-00041HD |
| Item Name | Gage,liquid Quantity,float Type |
| FSC / FSG | 6680 / 66 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments |
| Manufacturer | Triman Industries Inc |
| Status | ACTIVE |
| Mounting Hole Quantity | 6 |
| Indicator Type | DIAL |
| Overall Diameter | 5.250 INCHES NOMINAL IN |
| Scale Calibration | EMPTY,1/4,1/2,3/4,FULL |
| Mounting Method | FLANGE AND HOLE |
| Scale Smallest Increment | 0.250 TANK |
| Criticality Code Justification | FEAT |
| Float Protective Case | NOT PROVIDED |
| Mounting Hole Diameter | 0.312 INCHES IN |
| Oil Seal | NOT PROVIDED |
| Float Guide Wire | NOT PROVIDED |
| Scale Type | MOVABLE |
| Flange Diameter | 5.250 INCHES IN |
| Material | RUBBER SYNTHETIC FLOAT |
| Usage Design | W/US NAV SUBMARINE LIQUID LEVEL SYSTEM |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 6990-00041HD PRIMARY | Triman Industries Inc (USA) |
| 7690-00007 | Rochester Sensors, Llc (USA) |
| Reference | Meaning |
|---|---|
| 4643446-0004A | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 4643446-0004MOD4643446-0004A | 5/2 Secondary reference U.S. Government activity |
| 4643446-0004 | 5/2 Secondary reference U.S. Government activity |
| 4643446 | 3/1 Design control — primary reference U.S. Government activity |
| 4643446-0004 | 5/1 Secondary reference U.S. Government activity |
| 7690-00007 | 5/9 Secondary reference Triman Industries Inc |
NSN 6680-01-108-5809 is a Gage,liquid Quantity,float Type, manufactured by Triman Industries Inc, classified under FSC 6680, Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments. Status: active.
NSN 6680-01-108-5809 has 2 manufacturer part numbers on file: 6990-00041HD (Triman Industries Inc), 7690-00007 (Rochester Sensors, Llc).
4 possible matches (shared part number, not a government interchangeability claim): 6680-01-108-5811, 6680-01-108-5812, 6680-01-108-5813. Verify interchangeability with system specifications before substitution.
Key specifications for 6990-00041HD: Mounting Hole Quantity: 6; Indicator Type: DIAL; Overall Diameter: 5.250 INCHES NOMINAL IN; Scale Calibration: EMPTY,1/4,1/2,3/4,FULL. 15 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 6680-01-108-5809 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.