The Glass,liquid Sight Indicator,fla, cataloged under National Stock Number 6680-00-599-9451, 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 Dba Jerguson Gage & Valve. Government technical data includes 6 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 6680-00-599-9451 |
| Primary Part Number | JMS-5284 |
| Item Name | Glass,liquid Sight Indicator,fla |
| FSC / FSG | 6680 / 66 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments |
| Manufacturer | Clark-Reliance Llc Dba Jerguson Gage & Valve |
| Status | ACTIVE |
| Design Type | PLAIN |
| Overall Thickness | 0.688 INCHES NOMINAL IN |
| Gage Rated Pressure | 1500.0 POUNDS PER SQUARE INCH GAGE LBS |
| Mica Shield | PROVIDED |
| Nondefinitive Spec/std Data | 6 SIZE |
| Gasket | INCLUDED |
| 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 |
|---|---|
| JMS-5284 PRIMARY | Clark-Reliance Llc Dba Jerguson Gage & Valve (USA) |
| Reference | Meaning |
|---|---|
| MIL-G-18498 | 5/9 Secondary reference U.S. Government activity |
NSN 6680-00-599-9451 is a Glass,liquid Sight Indicator,fla, manufactured by Clark-Reliance Llc Dba Jerguson Gage & Valve, classified under FSC 6680, Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments. Status: active.
NSN 6680-00-599-9451 has 1 manufacturer part number on file: JMS-5284 (Clark-Reliance Llc Dba Jerguson Gage & Valve).
1 possible match (shared part number, not a government interchangeability claim): 6680-00-799-5474. Verify interchangeability with system specifications before substitution.
Key specifications for JMS-5284: Design Type: PLAIN; Overall Thickness: 0.688 INCHES NOMINAL IN; Gage Rated Pressure: 1500.0 POUNDS PER SQUARE INCH GAGE LBS; Overall Length: 9.875 INCHES NOMINAL IN. 6 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.