The Indicator,sight,liquid, cataloged under National Stock Number 6680-01-317-1502, 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 Appleton Marine Inc. Government technical data includes 2 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 6680-01-317-1502 |
| Primary Part Number | YMD-5278 ITEM 043 |
| Item Name | Indicator,sight,liquid |
| FSC / FSG | 6680 / 66 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments |
| Manufacturer | Appleton Marine Inc |
| Status | ACTIVE |
| Furnished Data | LIQUID LEVEL |
| Media for Which Designed | OIL |
| 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 |
|---|---|
| YMD-5278 ITEM 043 PRIMARY | Appleton Marine Inc (USA) |
| Reference | Meaning |
|---|---|
| YMD-5278 | 5/1 Secondary reference Appleton Marine Inc |
| D5678502 ITEM 043 | 5/9 Secondary reference Flender Corporation Dba Foreign Parent Is a Friedr Flender Ag Bocholt Germany. |
NSN 6680-01-317-1502 is a Indicator,sight,liquid, manufactured by Appleton Marine Inc, classified under FSC 6680, Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments. Status: active.
NSN 6680-01-317-1502 has 1 manufacturer part number on file: YMD-5278 ITEM 043 (Appleton Marine Inc).
2 possible matches (shared part number, not a government interchangeability claim): 3040-01-317-8945, 3020-01-317-8968. Verify interchangeability with system specifications before substitution.
Key specifications for YMD-5278 ITEM 043: Furnished Data: LIQUID LEVEL; Media for Which Designed: OIL. 2 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.