The Retainer,optical Element, cataloged under National Stock Number 1240-01-319-5863, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1240-01-319-5863 |
| Primary Part Number | 13077322-501 |
| Item Name | Retainer,optical Element |
| FSC / FSG | 1240 / 12 — Optical Sighting and Ranging Equipment |
| Manufacturer | Lockheed Martin Corporation |
| Status | ACTIVE |
| Hole Chamfer Diameter | 3.010 INCHES MINIMUM AND 3.030 INCHES MAXIMUM IN |
| Style Designator | RECESSED |
| Setscrew Notch | NOT PROVIDED |
| Recess Depth | 0.008 INCHES MINIMUM AND 0.028 INCHES MAXIMUM IN |
| Recess Diameter | 3.180 INCHES MINIMUM AND 3.186 INCHES MAXIMUM IN |
| Guide Location | BOTH EDGES |
| Hole Chamfer Angle in Deg | 15.0 |
| Thread Size | 3.1875 IN.-32 IN |
| Guide Design | THREAD CHAMFER |
| Internal Annular Serration | NOT PROVIDED |
| Material | ALUMINUM ALLOY 6061 |
| Hole Diameter | 2.990 INCHES MINIMUM AND 3.010 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 13077322-501 | Lockheed Martin Corporation (USA) |
| Reference | Meaning |
|---|---|
| 13077322-501 | 3/9 Design control — primary reference Program Manager Advanced Attack Helicopter Barcom Amcpm-Aah |
NSN 1240-01-319-5863 is a Retainer,optical Element, manufactured by Lockheed Martin Corporation, classified under FSC 1240, Optical Sighting and Ranging Equipment. Status: active.
NSN 1240-01-319-5863 has 1 manufacturer part number on file: 13077322-501 (Lockheed Martin Corporation).
Key specifications for 13077322-501: Hole Chamfer Diameter: 3.010 INCHES MINIMUM AND 3.030 INCHES MAXIMUM IN; Style Designator: RECESSED; Setscrew Notch: NOT PROVIDED; Overall Length: 0.100 INCHES MINIMUM AND 0.120 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.
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.