The Filter,blue, cataloged under National Stock Number 6610-00-981-7779, is classified within Federal Supply Class 6610 (Flight Instruments) of the Instruments and Laboratory Equipment group. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Item Name | Filter,blue |
| FSC / FSG | 6610 — Flight Instruments (FSG 66) |
| Parameter | Value |
|---|---|
| NSN | 6610-00-981-7779 |
| Item Name | Filter,blue |
| FSC / FSG | 6610 / 66 — Flight Instruments |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Reference | Meaning |
|---|---|
| M1679 | 3/2 Design control — primary reference U.S. Government activity |
NSN 6610-00-981-7779 is a Filter,blue, classified under FSC 6610, Flight Instruments. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5915-01-065-8023. Verify interchangeability with system specifications before substitution.
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.