The Halon Liquid Level Indicator, cataloged under National Stock Number 6680-01-339-1287, 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 Teledyne Instruments, Inc. Dba Teledyne Benthos. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 6680-01-339-1287 |
| Primary Part Number | C287-2864 |
| Item Name | Halon Liquid Level Indicator |
| FSC / FSG | 6680 / 66 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments |
| Manufacturer | Teledyne Instruments, Inc. Dba Teledyne Benthos |
| Status | ACTIVE |
| General Characteristics Item Description | 24 VDC; ULTRASONIC INDICATION VDC |
| 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 |
|---|---|
| C287-2864 PRIMARY | Teledyne Instruments, Inc. Dba Teledyne Benthos (USA) |
| HLI-287-1 | Teledyne Instruments, Inc. Dba Teledyne Benthos (USA) |
| Reference | Meaning |
|---|---|
| HLI-287-1 | 5/9 Secondary reference Datasonics Inc |
| C287-2864 | 5/9 Secondary reference Datasonics Inc |
NSN 6680-01-339-1287 is a Halon Liquid Level Indicator, manufactured by Teledyne Instruments, Inc. Dba Teledyne Benthos, classified under FSC 6680, Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments. Status: active.
NSN 6680-01-339-1287 has 2 manufacturer part numbers on file: C287-2864 (Teledyne Instruments, Inc. Dba Teledyne Benthos), HLI-287-1 (Teledyne Instruments, Inc. Dba Teledyne Benthos).
Key specifications for C287-2864: General Characteristics Item Description: 24 VDC; ULTRASONIC INDICATION VDC; End Item Identification: HALON 1301. 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.