The Window,diffuser, cataloged under National Stock Number 4920-01-110-1224, is classified within Federal Supply Class 4920 (Aircraft Maintenance and Repair Shop Specialized Equipment) of the Maintenance and Repair Shop Equipment group. The manufacturer of record is Northrop Grumman Systems Corporation. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4920-01-110-1224 |
| Primary Part Number | 11018055-1 |
| Item Name | Window,diffuser |
| FSC / FSG | 4920 / 49 — Aircraft Maintenance and Repair Shop Specialized Equipment |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| FSC Application Data | TEST CONSOLE |
| General Characteristics Item Description | 2.000 IN. DIA,0.090 IN. MIN. W,0.120 IN. MAX. W; BOTH SURFACES FINE GROUND; MADE FROM INPUT OPTICS DIFFUSERS SUPPLIED WITH NARROW BEAM ADAPTER,PART NO.580-00-11,FSCM NO. 92678; IF MATERIAL IS NOT QUARTZ,REPLACE WITH BK-7 GLASS,PER SHOTT NOMENCLATURE; GRADE B OR BETTER,FINE ANNEALED IN ACCORDANCE WITH MIL-G-174 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 |
|---|---|
| 11018055-1 PRIMARY | Northrop Grumman Systems Corporation (USA) |
NSN 4920-01-110-1224 is a Window,diffuser, manufactured by Northrop Grumman Systems Corporation, classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.
NSN 4920-01-110-1224 has 1 manufacturer part number on file: 11018055-1 (Northrop Grumman Systems Corporation).
Key specifications for 11018055-1: FSC Application Data: TEST CONSOLE; General Characteristics Item Description: 2.000 IN. DIA,0.090 IN. MIN. W,0.120 IN. MAX. W; BOTH SURFACES FINE GROUND; MADE FROM INPUT OPTICS DIFFUSERS SUPPLIED WITH NARROW BEAM ADAPTER,PART NO.580-00-11,FSCM NO. 92678; IF MATERIAL IS NOT QUARTZ,REPLACE WITH BK-7 GLASS,PER SHOTT NOMENCLATURE; GRADE B OR BETTER,FINE ANNEALED IN ACCORDANCE WITH MIL-G-174 IN; End Item Identification: F4E/RF4C ACFT AGE.. 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.