Resources
STANDARD GEOMETRIC DIMENSIONING
AND TOLERANCING ( GD & T )
Unless otherwise specified on your drawing(s), these tolerances will be applied.
Please note that our process capabilities exceed these tolerances.
| 1.PLATE (NOT POLISHED) |
LENGTH:
WIDTH:
THKS: |
±.012″
±.012″
±.008″ |
(±.30mm)
(±.30mm)
(±.20mm) |
| 2.DISK (NOT POLISHED) |
DIAMETER:
THKS: |
±.012″
±.008″ |
(±.30mm)
(±.20mm) |
| 3.WINDOW/VIEWPORT |
LENGTH:
WIDTH:
DIAMETER:
THKS: |
±.008″
±.008″
±.008″
±.004″ |
(±.20mm)
(±.20mm)
(±.20mm)
(±.10mm) |
| SURFACE QUALITY – MIL-SPEC-PRF-13830B 80/50 (See Scratch / Dig Specifications) |
| BEVEL: |
<0.030″ |
(<.762mm) |
| MAXIMUM CHIP: |
.020″ |
(0.50mm) |
|
STANDARD SPECIFICATIONS (UNLESS OTHERWISE SPECIFIED):
QUARTZ AND GLASS ARE CLEANED TO CLASS 4 (COSMETIC ONLY). UPON REQUEST, CLASS 3 TO CLASS 1 IS AVAILABLE.
MARK OPTICS WILL USE FINE DIAMONDS FOR MACHINED SURFACES UNLESS OTHER-WISE REQUESTED.
MEGASONIC AND ULTRASONIC CLEANING IS AVAILABLE UPON REQUEST.
| D |
| /VVV |
N6 |
32vD |
.8µm |
Diamond finish (32µ”) |
| G |
| /VVV |
N5 |
16vD |
.4µm |
Diamond Finish (16µ”) |
| MP |
| /VVV |
N4 |
9vG |
.2 µm |
Ground Finish (9µ”) |
| FP |
| /VVVV |
N1 |
1vMP |
.025 µm |
Ground & Polish Finish (1µm”) |
| LP |
| /VVVV |
N2 |
2vFP |
.05 µm |
Flame Polish Finish (2µ”) |
| |
| /VVVV |
|
vLP |
5 Å |
Laser Polish |
|
|
*** OTHER SURFACE FINISHES AVAILABLE UPON REQUEST ***
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