The Spacer,optical Element, cataloged under National Stock Number 6650-00-758-3443, 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 Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6650-00-758-3443 |
| Primary Part Number | 7583443 |
| Item Name | Spacer,optical Element |
| FSC / FSG | 6650 / 66 — Optical Instruments, Test Equipment, Components and Accessories |
| Manufacturer | Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate |
| Status | ACTIVE |
| Serration Width | 0.101 INCHES NOMINAL IN |
| End Internal Bevel Angle | 45.0 DEGREES NOMINAL |
| Style Designator | SPACER |
| Straight Bore Inside Diameter | 0.446 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY |
| 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 |
|---|---|
| 7583443 | Mac Aerospace Corp (USA) |
| 7583443 PRIMARY | Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate (USA) |
| 7583443 | J M L Optical Industries, Inc. Dba J M L Direct Optics Div Jml Optical Industries Llc (USA) |
NSN 6650-00-758-3443 is a Spacer,optical Element, manufactured by Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate, classified under FSC 6650, Optical Instruments, Test Equipment, Components and Accessories. Status: active.
NSN 6650-00-758-3443 has 3 manufacturer part numbers on file: 7583443 (Mac Aerospace Corp), 7583443 (Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate), 7583443 (J M L Optical Industries, Inc. Dba J M L Direct Optics Div Jml Optical Industries Llc).
Key specifications for 7583443: Serration Width: 0.101 INCHES NOMINAL IN; End Internal Bevel Angle: 45.0 DEGREES NOMINAL; Style Designator: SPACER; Overall Length: 0.165 INCHES NOMINAL IN. 5 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.