The Indicator,sight,liquid, cataloged under National Stock Number 6680-01-502-6949, 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 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6680-01-502-6949 |
| Primary Part Number | TMS-9543 |
| Item Name | Indicator,sight,liquid |
| FSC / FSG | 6680 / 66 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments |
| Manufacturer | Clark-Reliance Llc |
| Status | ACTIVE |
| Criticality Code Justification | FEAT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| TMS-9543 PRIMARY | Clark-Reliance Llc (USA) |
| TMS-9543(MOD) PRIMARY | Stag Enterprise, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 910-FA,0.50IN,316SS(MOD) | 3/1 Design control — primary reference U.S. Government activity |
| T400-02,0.50IN 316SS | 5/1 Secondary reference U.S. Government activity |
NSN 6680-01-502-6949 is a Indicator,sight,liquid, manufactured by Clark-Reliance Llc, classified under FSC 6680, Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments. Status: active.
NSN 6680-01-502-6949 has 2 manufacturer part numbers on file: TMS-9543 (Clark-Reliance Llc), TMS-9543(MOD) (Stag Enterprise, Inc.).
Key specifications for TMS-9543: Criticality Code Justification: FEAT; Special Features: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS. 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.