The Indicator,sight,liquid, cataloged under National Stock Number 6680-01-360-3778, 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 Hydraulics International, Inc. Dba Hydraulics International 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. 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 | 6680-01-360-3778 |
| Primary Part Number | 22492-1 |
| Item Name | Indicator,sight,liquid |
| FSC / FSG | 6680 / 66 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments |
| Manufacturer | Hydraulics International, Inc. Dba Hydraulics International Inc |
| Status | ACTIVE |
| Furnished Data | LIQUID LEVEL |
| Data Furnishing Method | CLEAR WINDOW |
| 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 |
|---|---|
| 22492-1 PRIMARY | Hydraulics International, Inc. Dba Hydraulics International Inc (USA) |
NSN 6680-01-360-3778 is a Indicator,sight,liquid, manufactured by Hydraulics International, Inc. Dba Hydraulics International Inc, classified under FSC 6680, Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments. Status: active.
NSN 6680-01-360-3778 has 1 manufacturer part number on file: 22492-1 (Hydraulics International, Inc. Dba Hydraulics International Inc).
1 possible match (shared part number, not a government interchangeability claim): 4730-01-618-2059. Verify interchangeability with system specifications before substitution.
Key specifications for 22492-1: Furnished Data: LIQUID LEVEL; Data Furnishing Method: CLEAR WINDOW; Special Features: TWO GROOVES 0.089 INC H MINIMUM,0.099 INCH MAXIMUM WIDE CUT ON O.D. DOWN TO 0.512 INCH MINIMUM 0.514 INCH MAXIMUM DEPTH 0.12 INCH FROM EACH END IN; End Item Identification: AC TST STND HYD. 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.