The Filter,light,optical Instrument, cataloged under National Stock Number 6650-01-337-0657, 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 Rockwell Collins, Inc. Dba Rc Displays Systems. Government technical data includes 4 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 6650-01-337-0657 |
| Primary Part Number | 131406-1 |
| Item Name | Filter,light,optical Instrument |
| FSC / FSG | 6650 / 66 — Optical Instruments, Test Equipment, Components and Accessories |
| Manufacturer | Rockwell Collins, Inc. Dba Rc Displays Systems |
| Status | ACTIVE |
| Overall Diameter | 4.630 INCHES NOMINAL IN |
| Overall Thickness | 0.118 INCHES NOMINAL IN |
| Density Variability | NOT VARIABLE |
| Material | GLASS SURFACE |
| 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 |
|---|---|
| 131406-1 PRIMARY | Rockwell Collins, Inc. Dba Rc Displays Systems (USA) |
| Reference | Meaning |
|---|---|
| 10150206 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 6650-01-337-0657 is a Filter,light,optical Instrument, manufactured by Rockwell Collins, Inc. Dba Rc Displays Systems, classified under FSC 6650, Optical Instruments, Test Equipment, Components and Accessories. Status: active.
NSN 6650-01-337-0657 has 1 manufacturer part number on file: 131406-1 (Rockwell Collins, Inc. Dba Rc Displays Systems).
Key specifications for 131406-1: Overall Diameter: 4.630 INCHES NOMINAL IN; Overall Thickness: 0.118 INCHES NOMINAL IN; Density Variability: NOT VARIABLE; Material: GLASS SURFACE. 4 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.