The Retainer,optical Element, cataloged under National Stock Number 1240-01-204-7772, is classified within Federal Supply Class 1240 (Optical Sighting and Ranging Equipment) of the Fire Control Equipment group. The manufacturer of record is Lockheed Martin Corporation. Government technical data includes 12 specifications, cited from the U.S. Government catalog. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 1240-01-204-7772 |
| Primary Part Number | 13076119 |
| Item Name | Retainer,optical Element |
| FSC / FSG | 1240 / 12 — Optical Sighting and Ranging Equipment |
| Manufacturer | Lockheed Martin Corporation |
| Status | ACTIVE |
| Hole Chamfer Diameter | 0.422 INCHES MINIMUM AND 0.426 INCHES MAXIMUM IN |
| Style Designator | RECESSED |
| Setscrew Notch | NOT PROVIDED |
| Recess Depth | 0.268 INCHES MINIMUM AND 0.288 INCHES MAXIMUM IN |
| Recess Diameter | 1.740 INCHES MINIMUM AND 1.760 INCHES MAXIMUM IN |
| Guide Location | SHOULDER |
| Hole Chamfer Angle in Deg | 45.0 |
| Thread Size | 0.014 |
| Guide Design | THREAD CHAMFER |
| Internal Annular Serration | NOT PROVIDED |
| Material | ALUMINUM ALLOY |
| Hole Diameter | 0.140 INCHES MINIMUM AND 0.146 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | N |
| Part Number | Manufacturer |
|---|---|
| 13076119 PRIMARY | Lockheed Martin Corporation (USA) |
| Reference | Meaning |
|---|---|
| 13076119 | 5/9 Secondary reference Program Manager Advanced Attack Helicopter Barcom Amcpm-Aah |
NSN 1240-01-204-7772 is a Retainer,optical Element, manufactured by Lockheed Martin Corporation, classified under FSC 1240, Optical Sighting and Ranging Equipment. Status: active.
NSN 1240-01-204-7772 has 1 manufacturer part number on file: 13076119 (Lockheed Martin Corporation).
1 possible match (shared part number, not a government interchangeability claim): 4010-01-729-6566. Verify interchangeability with system specifications before substitution.
Key specifications for 13076119: Hole Chamfer Diameter: 0.422 INCHES MINIMUM AND 0.426 INCHES MAXIMUM IN; Style Designator: RECESSED; Setscrew Notch: NOT PROVIDED; Overall Length: 2.240 INCHES MINIMUM AND 2.260 INCHES MAXIMUM IN. 12 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 1240-01-204-7772 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.