The Window,optical Instrument, cataloged under National Stock Number 1240-00-698-1669, is classified within Federal Supply Class 1240 (Optical Sighting and Ranging Equipment) of the Fire Control Equipment group. The manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 6 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1240-00-698-1669 |
| Primary Part Number | 232544PC7 |
| Item Name | Window,optical Instrument |
| FSC / FSG | 1240 / 12 — Optical Sighting and Ranging Equipment |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Bevel Depth | 1.0 MILLIMETERS NOMINAL MM |
| Diameter | 32.0 MILLIMETERS NOMINAL MM |
| Polished Periphery | NOT PROVIDED |
| Bevel Angle in Deg | 45.000 NOMINAL |
| Material | PLASTIC LOCATION NOT OTHERWISE SPECIFIED |
| Thickness | 5.5 MILLIMETERS NOMINAL MM |
| 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 |
|---|---|
| 232544PC7 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| 3000091 | L3 Technologies, Inc. Div L3 Keo (USA) |
| Reference | Meaning |
|---|---|
| 3000091 | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
| 3000091 | 5/9 Secondary reference Grayco Optical Corp |
NSN 1240-00-698-1669 is a Window,optical Instrument, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 1240, Optical Sighting and Ranging Equipment. Status: active.
NSN 1240-00-698-1669 has 2 manufacturer part numbers on file: 232544PC7 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 3000091 (L3 Technologies, Inc. Div L3 Keo).
1 possible match (shared part number, not a government interchangeability claim): 7021-01-700-3084. Verify interchangeability with system specifications before substitution.
Key specifications for 232544PC7: Bevel Depth: 1.0 MILLIMETERS NOMINAL MM; Diameter: 32.0 MILLIMETERS NOMINAL MM; Polished Periphery: NOT PROVIDED; Bevel Angle in Deg: 45.000 NOMINAL. 6 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 1240-00-698-1669 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.