Optical Element Retaining Rings

105 total part numbers.
895219 Alternates: 31150PC5115
NSN 1240-00-025-0269
  • Overall Length: 0.160 inches
  • Outside Diameter: 2.050 inches
  • Internal Flange Thickness: 0.058 inches
  • Material: Brass
  • Material: Copper alloy
215292PC2
NSN 1240-00-026-8107
  • Thread Class: 3b
  • Thread Direction: Right-hand
  • Thread Length: 0.400 inches
  • Overall Length: Between 0.590 inches and 0.610 inches
  • Outside Diameter: Between 5.240 inches and 5.260 inches
10547913
NSN 1240-00-045-4379
  • Outside Diameter: Between 1.710 inches and 1.720 inches
  • Aperture Diameter: 1.5625 inches
  • Thread Location: Internal
  • Internal Flange Thickness: 0.3750 inches
  • Material: Steel comp 303 or steel comp 416
929C956P1
NSN 1240-00-079-5185
  • Outside Diameter: Between 4.885 inches and 4.895 inches
  • Aperture Diameter: Between 4.090 inches and 4.110 inches
  • Mounting Configuration: Four mounting holes
  • Internal Flange Thickness: Between 0.047 inches and 0.050 inches
  • Knurled Periphery: Not provided
701C913P1
NSN 1240-00-101-0594
  • Overall Length: 0.190 inches
  • Outside Diameter: 5.310 inches
  • Aperture Diameter: 4.512 inches
  • Mounting Configuration: Eight 0.194 in. Diameter mtg holes
  • Internal Flange Thickness: 0.058 inches

Shop by Manufacturer optical element retaining rings

8289272 Alternates: 1240001154471
NSN 1240-00-115-4471
  • Thread Class: 3a
  • Thread Pitch Diameters: +2.0219 to 2.0273 inches
  • Thread Direction: Right-hand
  • Groove Diameter: 2.078 inches
  • Thread Length: 0.494 inches
481128PC2
NSN 1240-00-130-7585
  • Groove Diameter: 2.750 inches
  • Overall Length: 2.125 inches
  • Outside Diameter: 3.000 inches
  • Aperture Diameter: 2.595 inches
  • Inner Groove Width: 0.155 inches
94695PC4
NSN 1240-00-130-8277
  • Groove Diameter: 0.681 inches
  • Overall Length: Between 0.195 inches and 0.205 inches
  • Outside Diameter: Between 0.850 inches and 0.855 inches
  • Thread Size: 0.655-50
  • Aperture Diameter: 0.562 inches
175931PC1
NSN 1240-00-131-6994
  • Overall Length: Between 0.160 inches and 0.170 inches
  • Outside Diameter: Between 1.245 inches and 1.255 inches
  • Aperture Diameter: Between 0.745 inches and 0.755 inches
  • Internal Flange Thickness: Between 0.035 inches and 0.045 inches
  • Knurled Periphery: Not provided
278574PC7
NSN 1240-00-155-1464
  • Thread Direction: Right-hand
  • Thread Length: 0.250 inches
  • Overall Length: 0.312 inches
  • Outside Diameter: 3.268 inches
  • Aperture Diameter: 3.140 inches
203026PC14 Alternates: G8102PC14
NSN 1240-00-157-4129
  • Thread Class: 3b
  • Thread Direction: Right-hand
  • Thread Length: 0.187 inches
  • Overall Length: 0.250 inches
  • Outside Diameter: 1.687 inches
481112PC8
NSN 1240-00-157-9379
  • Thread Class: 2a
  • Thread Direction: Right-hand
  • Groove Diameter: 2.218 inches
  • Thread Length: 0.171 inches
  • Overall Length: 0.297 inches
481128PC1
NSN 1240-00-157-9412
  • Thread Class: 2a
  • Thread Direction: Right-hand
  • Thread Length: 0.075 inches
  • Overall Length: 0.255 inches
  • Outside Diameter: 2.250 inches
655045 Alternates: 231650
NSN 1240-00-159-0537
  • Groove Diameter: 2.251 inches
  • Overall Length: 0.656 inches
  • Outside Diameter: 2.500 inches
  • Aperture Diameter: 2.016 inches
  • Inner Groove Width: 0.0235 inches
212550-1 Alternates: 212550PC1
NSN 1240-00-159-4486
  • Outside Diameter: 4.125 inches
  • Aperture Diameter: 2.813 inches
  • Internal Flange Thickness: 0.093 inches
  • Knurled Periphery: Not provided
  • Material: Aluminum alloy
654745 Alternates: 265200
NSN 1240-00-177-0659
  • Thread Class: 2b
  • Thread Direction: Right-hand
  • Groove Diameter: 2.218 inches
  • Thread Length: 0.171 inches
  • Overall Length: 0.297 inches
929C962P1
NSN 1240-00-179-6427
  • Outside Diameter: Between 4.885 inches and 4.895 inches
  • Aperture Diameter: Between 4.090 inches and 4.110 inches
  • Internal Flange Thickness: 0.042 inches
  • Knurled Periphery: Not provided
  • Material: Aluminum alloy, 6061
789PC3 Alternates: 1390117
NSN 1240-00-210-4395
  • Thread Direction: Right-hand
  • Thread Length: 0.495 inches
  • Overall Length: Between 0.759 inches and 0.765 inches
  • Outside Diameter: Between 1.828 inches and 1.829 inches
  • Aperture Diameter: Between 1.451 inches and 1.457 inches
435-11-3019
NSN 1240-00-211-7182
  • Overall Length: Between 0.081 inches and 0.101 inches
  • Outside Diameter: Between 2.740 inches and 2.760 inches
  • Aperture Diameter: Between 1.960 inches and 1.980 inches
  • Internal Flange Thickness: Between 0.081 inches and 0.101 inches
  • Knurled Periphery: Not provided
10527978
NSN 1240-00-248-4800
  • Outside Diameter: 2.999 inches
  • Aperture Diameter: 2.250 inches
  • Internal Flange Thickness: 0.500 inches
  • Knurled Periphery: Not provided
  • Material: Steel, qq-s-763, class 303, cond a
8200195
NSN 1240-00-302-1312
  • Thread Class: 3b
  • Thread Pitch Diameters: +1.7162 to 1.7500 inches
  • Thread Direction: Right-hand
  • Thread Length: 0.158 inches
  • Overall Length: 0.192 inches
8200243 Alternates: 1240003021330
NSN 1240-00-302-1330
  • Thread Class: 3b
  • Thread Direction: Right-hand
  • Thread Length: 0.120 inches
  • Outside Diameter: Between 1.380 inches and 1.390 inches
  • Thread Size: 1 1/8-32
8200251
NSN 1240-00-302-1333
  • Thread Class: 2
  • Thread Direction: Right-hand
  • Thread Length: 0.143 inches
  • Overall Length: 0.187 inches
  • Outside Diameter: 1.812 inches
10558952
NSN 1240-00-328-5606
  • Groove Diameter: 3.130 inches
  • Outside Diameter: 3.250 inches
  • Aperture Diameter: 2.900 inches
  • Inner Groove Width: 0.140 inches
  • Internal Flange Thickness: 0.310 inches
511716PC5
NSN 1240-00-334-3376
  • Outside Diameter: 2.080 inches
  • Aperture Diameter: 1.500 inches
  • Internal Flange Thickness: 0.050 inches
  • Knurled Periphery: Not provided
  • Material: Brass