The Lens,optical Instrument, cataloged under National Stock Number 6650-01-028-9791, 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 Collins Aerospace Military Avionics & Helicopters Div Collins Aerospace - Military Avionics & Helicopters. Government technical data includes 5 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6650-01-028-9791 |
| Primary Part Number | 34471-1 |
| Item Name | Lens,optical Instrument |
| FSC / FSG | 6650 / 66 — Optical Instruments, Test Equipment, Components and Accessories |
| Manufacturer | Rockwell Collins, Inc. Dba Collins Aerospace Military Avionics & Helicopters Div Collins Aerospace - Military Avionics & Helicopters |
| Status | ACTIVE |
| Material Document and Classification | MIL-G-174, GRADE B MIL SPEC SINGLE MATERIAL RESPONSE |
| Diameter | 5.0590 INCHES MINIMUM AND 5.6000 INCHES MAXIMUM IN |
| Axial Thickness | 1.0227 INCHES MINIMUM AND 1.0287 INCHES MAXIMUM IN |
| Material | GLASS OPTICAL |
| Single Lens Style | DOUBLE CONVEX |
| 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 |
|---|---|
| 34471-1 PRIMARY | Rockwell Collins, Inc. Dba Collins Aerospace Military Avionics & Helicopters Div Collins Aerospace - Military Avionics & Helicopters (USA) |
| Reference | Meaning |
|---|---|
| 34471-1 | 5/9 Secondary reference Rockwell Collins, Inc. Dba Rc Displays Systems |
| 34471-1 | 5/9 Secondary reference Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems |
| 34471-1 | 5/9 Secondary reference Rockwell Collins Optronics Inc. Div Collins Aerospace - Mission Systems |
NSN 6650-01-028-9791 is a Lens,optical Instrument, manufactured by Rockwell Collins, Inc. Dba Collins Aerospace Military Avionics & Helicopters Div Collins Aerospace - Military Avionics & Helicopters, classified under FSC 6650, Optical Instruments, Test Equipment, Components and Accessories. Status: active.
NSN 6650-01-028-9791 has 1 manufacturer part number on file: 34471-1 (Rockwell Collins, Inc. Dba Collins Aerospace Military Avionics & Helicopters Div Collins Aerospace - Military Avionics & Helicopters).
Key specifications for 34471-1: Material Document and Classification: MIL-G-174, GRADE B MIL SPEC SINGLE MATERIAL RESPONSE; Diameter: 5.0590 INCHES MINIMUM AND 5.6000 INCHES MAXIMUM IN; Axial Thickness: 1.0227 INCHES MINIMUM AND 1.0287 INCHES MAXIMUM IN; Material: GLASS OPTICAL. 5 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 6650-01-028-9791 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.