The Cell,optical Element, cataloged under National Stock Number 1240-01-459-6690, is classified within Federal Supply Class 1240 (Optical Sighting and Ranging Equipment) of the Fire Control Equipment group. The manufacturer of record is Unertl John Optical Co Inc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 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 | 1240-01-459-6690 |
| Primary Part Number | O108 |
| Item Name | Cell,optical Element |
| FSC / FSG | 1240 / 12 — Optical Sighting and Ranging Equipment |
| Manufacturer | Unertl John Optical Co Inc |
| Status | ACTIVE |
| 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 |
|---|---|
| O108 PRIMARY | Unertl John Optical Co Inc (USA) |
NSN 1240-01-459-6690 is a Cell,optical Element, manufactured by Unertl John Optical Co Inc, classified under FSC 1240, Optical Sighting and Ranging Equipment. Status: active.
NSN 1240-01-459-6690 has 1 manufacturer part number on file: O108 (Unertl John Optical Co Inc).
1 possible match (shared part number, not a government interchangeability claim): 6515-01-478-3502. Verify interchangeability with system specifications before substitution.
Key specifications for O108: Overall Length: 1.875 INCHES NOMINAL IN; End Item Identification: SNIPER SCOPE, MODEL C3. 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 1240-01-459-6690 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.