National Aperture, Inc.

P: 800-360-4598 ~  F: 603-893-7857

Select by Part No. Prefix:

Standard Precision
Air Slit

Standard Pin Hole Apertures

Substrate Specifications

Finish: Unblackened (see options below)

Material: 300 series stainless steel, (except for HS option)

Diameter: 3/8 inch (0.3753 inch max.), 9.53mm

Positional tolerance: ø.006 inch (0.152mm)

Thickness: 0.0005 inch (12.7µm) on slits 5µm and up.
NOTE: Slits 1µm to 3.0µm include the HS option with a 2µm to 5µm thin Ni at the slit region.

Instant Quote Form

Standard Air Slits Standard Sizes

AVAILABLE OPTIONS:

Unblackened (standard) 
Option Cost
Black One side (B-1)[Info]
$
Black Two Sides(B-2)[Info]
$
Heavy Substrate(HS)[Details]
$
Close tolerance(CT)[Info]
$
Calibrated(C)[Info]
$
For Calibration please contact sales
 Mounted (M-)
[Info]
$
Qty:

(Calculated price includes discounts applied, if applicable.)
Shipping/handling: $15 charge within USA ( $60 Alaska and Hawaii ), ground for small packages (standard items). You may also provide your own UPS or FedEx account number. Charges are billed separately.
Items List
Total:
clear items



REQUEST A SPECIAL QUOTE
if you need the following:

  • Unlisted size
  • Quantities over 50
  • Non-standard substrate

The information contained in this website is subject to change without notice. Critical dimensions or specifications should be verified with our technical support staff.

Aperture Mounts

Mounting
[Click Image for Larger View]

M-25

25mm diameter blackened aluminum mount

  • D=24.95mm
  • T=2.54mm
  • ID=7.3mm
  • L= 0.63mm

M-18

18mm diameter blackened aluminum mount

  • D=17.95mm
  • T=2.54mm
  • ID=7.3mm
  • L= 0.63mm

M-16

16mm diameter blackened aluminum mount

  • D=15.95mm
  • T=1.8mm
  • ID=4.0mm
  • L= 0.46mm

M-1

1.0 inch diameter blackened aluminum mount

  • D=0.998in.
  • T=0.100in.
  • ID=0.290in.
  • L= 0.025in.

M-05

0.5 inch diameter blackened aluminum mount

  • D=0.498in.
  • T=0.055in.
  • ID=0.290in.
  • L= 0.018in.