The Anti-Reflection Device,optical I, cataloged under National Stock Number 6650-01-509-4073, 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 Armament Technology Incorporated. Government technical data includes 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 6650-01-509-4073 |
| Primary Part Number | 50SBC-ARD |
| Item Name | Anti-Reflection Device,optical I |
| FSC / FSG | 6650 / 66 — Optical Instruments, Test Equipment, Components and Accessories |
| Manufacturer | Armament Technology Incorporated |
| Status | ACTIVE |
| Overall Diameter | 2.200 INCHES NOMINAL IN |
| Type/model Designation | 50SBC-ARD |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 6650-01-509-4073 is a Anti-Reflection Device,optical I, manufactured by Armament Technology Incorporated, classified under FSC 6650, Optical Instruments, Test Equipment, Components and Accessories. Status: active.
NSN 6650-01-509-4073 has 3 manufacturer part numbers on file: 973304 (Heckler & Koch Gmbh), 50SBC-ARD (Armament Technology Incorporated), 971-61 (Schmidt U. Bender Gmbh & Co. Kg Optische Gerate).
1 possible match (shared part number, not a government interchangeability claim): 5355-01-542-8838. Verify interchangeability with system specifications before substitution.
Key specifications for 50SBC-ARD: Overall Diameter: 2.200 INCHES NOMINAL IN; Overall Length: 1.400 INCHES NOMINAL IN; Special Features: HOUSING MATERIAL GLASS FILLED THERMOPLASTIC AND ANODIZED ALUMINUM; FILTER MATERIAL RESIN-REINFORCED COMPOSITE HONEYCOMB WITH SPECIAL MATTE BLACK COATING; TEMPERATURE RANGE PLUS 71 TO MINUS 51 DEG. C; 15 PCT SIGHT LOSS; Part Name Assigned by Controlling Agency: KILLFLASH ARD. 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.