The Window,optical Instrument, cataloged under National Stock Number 6650-01-178-8731, 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 Systems Corporation. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 6650-01-178-8731 |
| Primary Part Number | 13079170 |
| Item Name | Window,optical Instrument |
| FSC / FSG | 6650 / 66 — Optical Instruments, Test Equipment, Components and Accessories |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Diameter | 0.390 INCHES NOMINAL IN |
| Polished Periphery | NOT PROVIDED |
| Material | QUARTZ LOCATION NOT OTHERWISE SPECIFIED |
| Thickness | 0.180 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 |
|---|---|
| 13079170 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| 13079170 | 5/9 Secondary reference Program Manager Advanced Attack Helicopter Barcom Amcpm-Aah |
NSN 6650-01-178-8731 is a Window,optical Instrument, manufactured by Northrop Grumman Systems Corporation, classified under FSC 6650, Optical Instruments, Test Equipment, Components and Accessories. Status: active.
NSN 6650-01-178-8731 has 1 manufacturer part number on file: 13079170 (Northrop Grumman Systems Corporation).
Key specifications for 13079170: Diameter: 0.390 INCHES NOMINAL IN; Polished Periphery: NOT PROVIDED; Material: QUARTZ LOCATION NOT OTHERWISE SPECIFIED; Thickness: 0.180 INCHES NOMINAL IN. 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.
NSN 6650-01-178-8731 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.