The Indicator,sight,liquid, cataloged under National Stock Number 6680-01-487-7779, 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 Naval Sea Systems Command. Government technical data includes 3 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 6680-01-487-7779 |
| Primary Part Number | 556-7106782-B |
| Item Name | Indicator,sight,liquid |
| FSC / FSG | 6680 / 66 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Furnished Data | LIQUID LEVEL |
| Data Furnishing Method | INSCRIBED FULL-EMPTY |
| Material | STEEL COMP 316 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 556-7106782-B PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| H792-8112 | D/9 Drawing number reference only U.S. Government activity |
| H792-8112-B | 5/9 Secondary reference U.S. Government activity |
| 7106782 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 6680-01-487-7779 is a Indicator,sight,liquid, manufactured by Naval Sea Systems Command, classified under FSC 6680, Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments. Status: active.
NSN 6680-01-487-7779 has 1 manufacturer part number on file: 556-7106782-B (Naval Sea Systems Command).
1 possible match (shared part number, not a government interchangeability claim): 3040-01-490-0878. Verify interchangeability with system specifications before substitution.
Key specifications for 556-7106782-B: Furnished Data: LIQUID LEVEL; Data Furnishing Method: INSCRIBED FULL-EMPTY; Special Features: ITEM IS CONTENTS INDICATOR FOR 3700 CUBIC INCH ACCUMULATOR; USED ON STARBOARD SIDE; End Item Identification: LOS ANGELES CLASS SSN (688). 3 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.
NSN 6680-01-487-7779 has DEMIL Code D. Demilitarization may be required before disposal or transfer to non-military entities.
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.