The Retainer,optical Element, cataloged under National Stock Number 6650-01-119-9919, is classified within Federal Supply Class 6650 (Optical Instruments, Test Equipment, Components and Accessories) of the Instruments and Laboratory Equipment group. The manufacturer of record is L3 Technologies, Inc. Div L3 Keo. Government technical data includes 18 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6650-01-119-9919 |
| Primary Part Number | B044431 |
| Item Name | Retainer,optical Element |
| FSC / FSG | 6650 / 66 — Optical Instruments, Test Equipment, Components and Accessories |
| Manufacturer | L3 Technologies, Inc. Div L3 Keo |
| Status | ACTIVE |
| Radius From Geometric Axis to Hole Center | 0.859 INCHES NOMINAL IN |
| Hole or Slot Quantity | 2 |
| Drive Type | DRILLED HOLE |
| Counterbore Taper Angle in Deg | 22.0 |
| Hole Chamfer Diameter | 1.000 INCHES NOMINAL IN |
| Style Designator | RECESSED |
| Setscrew Notch | NOT PROVIDED |
| Diameter | 0.125 INCHES NOMINAL IN |
| Recess Depth | 1.125 INCHES NOMINAL IN |
| Recess Diameter | 1.900 INCHES NOMINAL IN |
| Guide Location | BOTH EDGES |
| Hole Chamfer Angle in Deg | 60.0 |
| Thread Size | 2.125 IN.-16 IN |
| Guide Design | THREAD CHAMFER |
| Depth | 0.250 INCHES NOMINAL IN |
| Internal Annular Serration | NOT PROVIDED |
| Material | ALUMINUM ALLOY 6061 |
| Hole Diameter | 1.000 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| B044431 PRIMARY | L3 Technologies, Inc. Div L3 Keo (USA) |
| Reference | Meaning |
|---|---|
| 882B044431 | 5/9 Secondary reference L3 Technologies, Inc. Div L3 Keo |
| 044431 | 5/9 Secondary reference L3 Technologies, Inc. Div L3 Keo |
NSN 6650-01-119-9919 is a Retainer,optical Element, manufactured by L3 Technologies, Inc. Div L3 Keo, classified under FSC 6650, Optical Instruments, Test Equipment, Components and Accessories. Status: active.
NSN 6650-01-119-9919 has 1 manufacturer part number on file: B044431 (L3 Technologies, Inc. Div L3 Keo).
Key specifications for B044431: Radius From Geometric Axis to Hole Center: 0.859 INCHES NOMINAL IN; Hole or Slot Quantity: 2; Drive Type: DRILLED HOLE; Counterbore Taper Angle in Deg: 22.0. 18 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 6650-01-119-9919 has DEMIL Code Q. 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.