The Window,laser, cataloged under National Stock Number 1680-01-090-6553, is classified within Federal Supply Class 1680 (Miscellaneous Aircraft Accessories and Components) of the Aircraft Components and Accessories group. The manufacturer of record is Northrop Grumman Corp Electronic Systems Defensive System Div. Government technical data includes 1 specification, 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 | 1680-01-090-6553 |
| Primary Part Number | 315491 |
| Item Name | Window,laser |
| FSC / FSG | 1680 / 16 — Miscellaneous Aircraft Accessories and Components |
| Manufacturer | Northrop Grumman Corp Electronic Systems Defensive System Div |
| Status | ACTIVE |
| General Characteristics Item Description | MATL GLASS BK-7,DIA 0.400 IN.,THK 0.100 IN.,USED IN TRANSMISSION OF LASER ENERGY,MEET REQUIREMENTS OF NORTHROP CORP PROCESS SPEC MP-88 IN |
| 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 |
|---|---|
| 315491 PRIMARY | Northrop Grumman Corp Electronic Systems Defensive System Div (USA) |
NSN 1680-01-090-6553 is a Window,laser, manufactured by Northrop Grumman Corp Electronic Systems Defensive System Div, classified under FSC 1680, Miscellaneous Aircraft Accessories and Components. Status: active.
NSN 1680-01-090-6553 has 1 manufacturer part number on file: 315491 (Northrop Grumman Corp Electronic Systems Defensive System Div).
1 possible match (shared part number, not a government interchangeability claim): 1630-01-507-9637. Verify interchangeability with system specifications before substitution.
Key specifications for 315491: General Characteristics Item Description: MATL GLASS BK-7,DIA 0.400 IN.,THK 0.100 IN.,USED IN TRANSMISSION OF LASER ENERGY,MEET REQUIREMENTS OF NORTHROP CORP PROCESS SPEC MP-88 IN. 1 specification is 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.