1/8" Cork Gasket 
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1/8" Cork Gasket 1/32 Ro 
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Notes for Windows: 
1. Use acrylic plastic MIL-P-21105C, MIL-P-5425 or MIL-P-8184 
with mechanical properties satisfying NCEL specifications. 
All machined surfaces to Be NGA or better finish. 
Use a 1/32-inch radius on all corners, particularly the groove. 
Anneal after machining for 24 hours at 165°F. 
Mm F&F WwW WH 
For 450 psi service, use t/D, 2 (0) 325¢ 
Notes for Flange: 
1. D,/D; must be in 1.250 - 1.500 range. 
2. The surface contacting the O-ring should pee” or better. 
Notes for Gaskets: 
1. Use cork, or neoprene with 90 durometer hardness. 
2. Do not use grease on bearing surfaces of windows. 
3. Bond one gasket to flange seat, the other to retaining ring. 
Figure B-3. Proposed window assembly design for future applications in 
hyperbaric chambers operating at 450 psi. 
36 
