The Filter Subassembly,light,optical, cataloged under National Stock Number 1240-01-698-1663, is classified within Federal Supply Class 1240 (Optical Sighting and Ranging Equipment) of the Fire Control Equipment group. The manufacturer of record is Sig Sauer 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Filter Subassembly,light,optical |
| FSC / FSG | 1240 — Optical Sighting and Ranging Equipment (FSG 12) |
| Manufacturers | Sig Sauer Inc. (CAGE 6ZWB1) |
| Parameter | Value |
|---|---|
| NSN | 1240-01-698-1663 |
| Primary Part Number | 7403247-R |
| Item Name | Filter Subassembly,light,optical |
| FSC / FSG | 1240 / 12 — Optical Sighting and Ranging Equipment |
| Manufacturer | Sig Sauer 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 |
|---|---|
| 7403247-R PRIMARY | Sig Sauer Inc. (USA) |
| Reference | Meaning |
|---|---|
| 7403251 | D/9 Drawing number reference only Sig Sauer Inc. |
NSN 1240-01-698-1663 is a Filter Subassembly,light,optical, manufactured by Sig Sauer Inc., classified under FSC 1240, Optical Sighting and Ranging Equipment. Status: active.
NSN 1240-01-698-1663 has 1 manufacturer part number on file: 7403247-R (Sig Sauer Inc.).
2 possible matches (shared part number, not a government interchangeability claim): 6650-01-698-1743, 6650-01-698-2070. 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.
NSN 1240-01-698-1663 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.