The Glass,liquid Sight Indicator,rou, cataloged under National Stock Number 6680-01-589-2191, 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 Winters Thermogauges Inc Dba Winters Instruments Div Winters Instruments. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6680-01-589-2191 |
| Primary Part Number | PFP931-25FF |
| Item Name | Glass,liquid Sight Indicator,rou |
| FSC / FSG | 6680 / 66 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments |
| Manufacturer | Winters Thermogauges Inc Dba Winters Instruments Div Winters Instruments |
| Status | ACTIVE |
| 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 |
|---|---|
| GA-18001-00 REV G ITEM G1 | Securiplex Llc (USA) |
| PFP931-25FF PRIMARY | Winters Thermogauges Inc Dba Winters Instruments Div Winters Instruments (USA) |
| Reference | Meaning |
|---|---|
| GA-18001-00 REV F ITEM G1 | 5/9 Secondary reference Securiplex Llc |
NSN 6680-01-589-2191 is a Glass,liquid Sight Indicator,rou, manufactured by Winters Thermogauges Inc Dba Winters Instruments Div Winters Instruments, classified under FSC 6680, Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments. Status: active.
NSN 6680-01-589-2191 has 2 manufacturer part numbers on file: GA-18001-00 REV G ITEM G1 (Securiplex Llc), PFP931-25FF (Winters Thermogauges Inc Dba Winters Instruments Div Winters Instruments).
Key specifications for PFP931-25FF: Part Name Assigned by Controlling Agency: GAGE, LIQUID FILLED; End Item Identification: WATERMIST PUMP SKID. 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.
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.