The Lens,optical Instrument, cataloged under National Stock Number 6650-01-472-6750, 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 Oppenheimer Precision Products Inc. Government technical data includes 2 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 6650-01-472-6750 |
| Primary Part Number | E20-1IE686 |
| Item Name | Lens,optical Instrument |
| FSC / FSG | 6650 / 66 — Optical Instruments, Test Equipment, Components and Accessories |
| Manufacturer | Oppenheimer Precision Products Inc |
| Status | ACTIVE |
| Axial Thickness | 0.300 INCHES NOMINAL IN |
| Material | PLASTIC |
| 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 |
|---|---|
| E20-1IE686 PRIMARY | Oppenheimer Precision Products Inc (USA) |
| Reference | Meaning |
|---|---|
| 524-7015392PN001 | 3/1 Design control — primary reference Naval Sea Systems Command |
| E20.1IE686 | 5/9 Secondary reference Eaton Aerospace Llc Ed and C Div |
| 7015392 | 7/2 Vendor item drawing reference Naval Sea Systems Command |
NSN 6650-01-472-6750 is a Lens,optical Instrument, manufactured by Oppenheimer Precision Products Inc, classified under FSC 6650, Optical Instruments, Test Equipment, Components and Accessories. Status: active.
NSN 6650-01-472-6750 has 1 manufacturer part number on file: E20-1IE686 (Oppenheimer Precision Products Inc).
1 possible match (shared part number, not a government interchangeability claim): 6650-01-472-6753. Verify interchangeability with system specifications before substitution.
Key specifications for E20-1IE686: Axial Thickness: 0.300 INCHES NOMINAL IN; End Item Identification: FILTERS SUB ENGINEERING AND DIESEL SYS; Material: PLASTIC. 2 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.