05mm brass spacer rings used in optics and photonics applications are available at Edmund Optics
Acktar Hexa-Black C-Mount Noise Reduction Extension Tubes used to reduce stray light in C-Mount imaging systems are available at Edmund Optics.
15mm Length, Acktar Hexa-Black™ C-Mount Noise Reduction Extension Tube
Basic Rack and Pinion Stages ideal for applications that require a high load capacity or long travel are available at Edmund Optics.
Medium Thick Base Single Movement
M27.5 Retaining Ring Pair for 25.4mm Diameter Optics
C-CS Mount CCTV Lens Adapter Ring Extension Tube 20mm 10mm 5mm 0.5
H62 Brass Sheet Plate Thickness 0.5/0.8mm-6mm Square Metal Plate
Astronomical Accessary, Astronomical Ring, Spacer 1mm M48, M48 Rings
1550nm CWL, 12.5mm Dia. Hard Coated OD 4.0 25nm Bandpass Filter
12.5mm Dia x -25mm FL VIS 0°, Inked, Negative Achromatic Lens
Aluminum Front Low Profile Shock Mount System
FPVDrone M3 Flight Controller Anti-Vibration Standoffs Fixed
uxcell M3x30 Female-Female Hex Brass PCB Motherboard Spacer Standoff for FPV Drone Quadcopter, Computer & Circuit Board 25pcs : Industrial & Scientific
C-Mount, TO-5 Detector Mount