The Indicator,sight,liquid, cataloged under National Stock Number 6680-01-121-0115, 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. Government technical data includes 4 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6680-01-121-0115 |
| Item Name | Indicator,sight,liquid |
| FSC / FSG | 6680 / 66 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments |
| Status | ACTIVE |
| Material Document and Classification | QQ-C-390 FED SPEC SINGLE MATERIAL RESPONSE |
| Media for Which Designed | ANY ACCEPTABLE |
| Maximum Working Pressure | 300.0 POUNDS PER SQUARE INCH (PSI) LBS |
| Material | COPPER ALLOY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| MIL-I-20037 TY 2 CL A 28 IN | 2/2 Government specification standardization U.S. Government activity |
| MIL-I-20037 TY2 28IN 1/2INFLANGE | 5/1 Secondary reference Naval Inventory Control Point Mechanicsburg |
NSN 6680-01-121-0115 is a Indicator,sight,liquid, classified under FSC 6680, Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments. Status: active.
Key specifications for 6680-01-121-0115: Material Document and Classification: QQ-C-390 FED SPEC SINGLE MATERIAL RESPONSE; Special Features: TYPE 2, CLASS A: SIZE OF CONNECTION - 1/2 INCH NAVY BRONZE GAGE WITH 150 LB FLANGES; HAND WHEEL AND CHAIN NOT REQUIRED; INDICATION LENGTH - 28 INCHES, TUBULAR GLASS; OPERATING TEMP - 100 TO 270 DEGREES FAHRENHEIT; VISCOSITY AND SPECIFIC GRAVITY NOT APPLICABLE LBS; Media for Which Designed: ANY ACCEPTABLE; Maximum Working Pressure: 300.0 POUNDS PER SQUARE INCH (PSI) LBS. 4 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.