The Lens,optical Instrument, cataloged under National Stock Number 6650-00-008-6740, 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 Northrop Grumman Corp Electronic Systems Defensive System Div. Government technical data includes 9 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 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6650-00-008-6740 |
| Primary Part Number | 301242 |
| Item Name | Lens,optical Instrument |
| FSC / FSG | 6650 / 66 — Optical Instruments, Test Equipment, Components and Accessories |
| Manufacturer | Northrop Grumman Corp Electronic Systems Defensive System Div |
| Status | ACTIVE |
| Length | 0.716 INCHES NOMINAL IN |
| Element Left Surface Radius | 1.761 INCHES AND -2.021 INCHES IN |
| Element Right Surface Radius | -2.021 INCHES AND 28.035 INCHES IN |
| Material Document and Classification | MIL-G-174, CLASS 1, GRADE A MIL SPEC SINGLE MATERIAL RESPONSE |
| Diameter | 1.093 INCHES NOMINAL IN |
| Axial Thickness | 0.500 INCHES NOMINAL AND 0.188 INCHES NOMINAL IN |
| Compound Lens Edge Thickness | 0.625 INCHES NOMINAL IN |
| Material | GLASS OPTICAL |
| Compound Lens Overall Axial Thickness | 0.688 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 |
|---|---|
| 301242 PRIMARY | Northrop Grumman Corp Electronic Systems Defensive System Div (USA) |
NSN 6650-00-008-6740 is a Lens,optical Instrument, manufactured by Northrop Grumman Corp Electronic Systems Defensive System Div, classified under FSC 6650, Optical Instruments, Test Equipment, Components and Accessories. Status: active.
NSN 6650-00-008-6740 has 1 manufacturer part number on file: 301242 (Northrop Grumman Corp Electronic Systems Defensive System Div).
1 possible match (shared part number, not a government interchangeability claim): 5905-00-833-7404. Verify interchangeability with system specifications before substitution.
Key specifications for 301242: Length: 0.716 INCHES NOMINAL IN; Element Left Surface Radius: 1.761 INCHES AND -2.021 INCHES IN; Element Right Surface Radius: -2.021 INCHES AND 28.035 INCHES IN; Material Document and Classification: MIL-G-174, CLASS 1, GRADE A MIL SPEC SINGLE MATERIAL RESPONSE. 9 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 6650-00-008-6740 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.