The Filter Nuetral Den, cataloged under National Stock Number 1680-01-642-3430, is classified within Federal Supply Class 1680 (Miscellaneous Aircraft Accessories and Components) of the Aircraft Components and Accessories group. The manufacturer of record is Schneider Optics, Inc. Dba Schneider Optics Inc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1680-01-642-3430 |
| Primary Part Number | 66-1066183 |
| Item Name | Filter Nuetral Den |
| FSC / FSG | 1680 / 16 — Miscellaneous Aircraft Accessories and Components |
| Manufacturer | Schneider Optics, Inc. Dba Schneider Optics Inc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 66-1066183 PRIMARY | Schneider Optics, Inc. Dba Schneider Optics Inc (USA) |
| Reference | Meaning |
|---|---|
| 218500-101 | 5/9 Secondary reference U.S. Government activity |
NSN 1680-01-642-3430 is a Filter Nuetral Den, manufactured by Schneider Optics, Inc. Dba Schneider Optics Inc, classified under FSC 1680, Miscellaneous Aircraft Accessories and Components. Status: active.
NSN 1680-01-642-3430 has 1 manufacturer part number on file: 66-1066183 (Schneider Optics, Inc. Dba Schneider Optics Inc).
Key specifications for 66-1066183: Special Features: INTREGRATED LAUNCH AND RECOVERY TELEVISION SURVEILLANCE (ILARTS) SYSTEM FOR CVN-78;62MM NO. 110 SOLID NUETRAL DENSITY 3.0-1000X MRC FILTER MM; Part Name Assigned by Controlling Agency: FILTER NUETRAL DENSITY; End Item Identification: ILARTS SYSTEM FOR CVN-78. 0 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 1680-01-642-3430 has DEMIL Code Q. 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.