The Retainer,optical Element, cataloged under National Stock Number 1240-00-155-3343, 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 17 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 1240-00-155-3343 |
| Primary Part Number | 323285PC7 |
| Item Name | Retainer,optical Element |
| FSC / FSG | 1240 / 12 — Optical Sighting and Ranging Equipment |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Recess Angle in Deg | 30.0 |
| Hole or Slot Quantity | 2 |
| Drive Type | SLOTTED |
| Drive Facility Angular Spacing in Deg | 180.0 |
| Hole Chamfer Diameter | 0.188 INCHES NOMINAL IN |
| Style Designator | RECESSED |
| Setscrew Notch | NOT PROVIDED |
| Recess Depth | 0.150 INCHES NOMINAL IN |
| Guide Location | EDGE OPPOSITE DRIVE EDGE |
| Hole Chamfer Angle in Deg | 0.0 |
| Thread Size | 0.438 IN.-20 IN |
| Guide Design | THREAD RELIEF |
| Depth | 0.050 INCHES NOMINAL IN |
| Width | 0.060 INCHES NOMINAL IN |
| Internal Annular Serration | NOT PROVIDED |
| Material | COPPER ALLOY |
| Hole Diameter | 0.188 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 3232857 | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
| 323285PC7 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| 323285-7 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| Reference | Meaning |
|---|---|
| 323285PC7 | 5/9 Secondary reference Alliant Techsystems Inc Ordnance Systems Div |
NSN 1240-00-155-3343 is a Retainer,optical Element, 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 1240-00-155-3343 has 3 manufacturer part numbers on file: 3232857 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier), 323285PC7 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 323285-7 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
Key specifications for 323285PC7: Recess Angle in Deg: 30.0; Hole or Slot Quantity: 2; Drive Type: SLOTTED; Drive Facility Angular Spacing in Deg: 180.0. 17 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 1240-00-155-3343 has DEMIL Code B. 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.