The Filter,light,interference, cataloged under National Stock Number 1240-01-524-2149, is classified within Federal Supply Class 1240 (Optical Sighting and Ranging Equipment) of the Fire Control Equipment group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 2 specifications, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 1240-01-524-2149 |
| Primary Part Number | 7253096-1 |
| Item Name | Filter,light,interference |
| FSC / FSG | 1240 / 12 — Optical Sighting and Ranging Equipment |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Viewing Surface Overall Length | 10.600 INCHES NOMINAL IN |
| Viewing Surface Overall Width | 4.600 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 7253096-1 PRIMARY | Naval Sea Systems Command (USA) |
| 37876-02 | Industrial Electronic Engineers, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 7253096-1 | 5/9 Secondary reference Industrial Electronic Engineers, Inc. |
| 7253096 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 1240-01-524-2149 is a Filter,light,interference, manufactured by Naval Sea Systems Command, classified under FSC 1240, Optical Sighting and Ranging Equipment. Status: active.
NSN 1240-01-524-2149 has 2 manufacturer part numbers on file: 7253096-1 (Naval Sea Systems Command), 37876-02 (Industrial Electronic Engineers, Inc.).
Key specifications for 7253096-1: Viewing Surface Overall Length: 10.600 INCHES NOMINAL IN; Viewing Surface Overall Width: 4.600 INCHES NOMINAL IN; Special Features: ALTERED FROM P/N 7265469-1; Part Name Assigned by Controlling Agency: FILTER, LIGHT, INTERFERENCE. 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.
NSN 1240-01-524-2149 has DEMIL Code D. 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.