The Retainer,optical Element, cataloged under National Stock Number 5855-01-172-4568, is classified within Federal Supply Class 5855 (Night Vision Equipment, Emitted and Reflected Radiation) of the Communication, Detection, and Coherent Radiation Equipment group. The manufacturer of record is Lockheed Martin Corporation. Government technical data includes 13 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5855-01-172-4568 |
| Primary Part Number | 13074802 |
| Item Name | Retainer,optical Element |
| FSC / FSG | 5855 / 58 — Night Vision Equipment, Emitted and Reflected Radiation |
| Manufacturer | Lockheed Martin Corporation |
| Status | ACTIVE |
| Recess Angle in Deg | 134.0 |
| Hole or Slot Quantity | 4 |
| Drive Type | SLOTTED |
| Style Designator | RECESSED |
| Setscrew Notch | NOT PROVIDED |
| Recess Depth | 0.039 INCHES NOMINAL IN |
| Thread Size | 1.313 IN.-32 IN |
| Guide Design | THREAD CHAMFER |
| Depth | 0.050 INCHES NOMINAL IN |
| Width | 0.060 INCHES NOMINAL IN |
| Internal Annular Serration | NOT PROVIDED |
| Material | STEEL CORROSION RESISTING |
| Hole Diameter | 1.100 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | N |
| Part Number | Manufacturer |
|---|---|
| 13074802 PRIMARY | Lockheed Martin Corporation (USA) |
| Reference | Meaning |
|---|---|
| 13074802 | 5/9 Secondary reference Program Manager Advanced Attack Helicopter Barcom Amcpm-Aah |
NSN 5855-01-172-4568 is a Retainer,optical Element, manufactured by Lockheed Martin Corporation, classified under FSC 5855, Night Vision Equipment, Emitted and Reflected Radiation. Status: active.
NSN 5855-01-172-4568 has 1 manufacturer part number on file: 13074802 (Lockheed Martin Corporation).
Key specifications for 13074802: Recess Angle in Deg: 134.0; Hole or Slot Quantity: 4; Drive Type: SLOTTED; Style Designator: RECESSED. 13 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.