Optical Element Retaining Rings - Page 2 of 5

105 total part numbers.
1040234 Alternates: 73655
NSN 1240-00-344-7639
  • Thread Class: 3a
  • Thread Pitch Diameters: +0.6747 to 0.6950 inches
  • Thread Direction: Right-hand
  • Thread Length: 0.094 inches
  • Overall Length: 0.125 inches
164150PC2
NSN 1240-00-382-0575
  • Outside Diameter: 2.875 inches
  • Aperture Diameter: 2.375 inches
  • End Application: Telescope mk46
  • Internal Flange Thickness: 0.285 inches
  • Knurled Periphery: Provided
217466PC4
NSN 1240-00-382-0875
  • Thread Class: 3b
  • Thread Pitch Diameters: +1.9040 to 1.9375 inches
  • Thread Direction: Right-hand
  • Groove Diameter: 1.940 inches
  • Thread Length: 0.400 inches
217472PC9
NSN 1240-00-382-0900
  • Thread Class: 3b
  • Thread Pitch Diameters: +1.4037 to 1.4172 inches
  • Thread Direction: Right-hand
  • Thread Length: 0.150 inches
  • Overall Length: 0.214 inches
233058PC5
NSN 1240-00-382-0999
  • Outside Diameter: 1.955 inches
  • Aperture Diameter: 1.800 inches
  • End Application: Telescope mk74
  • Internal Flange Thickness: 0.010 inches
  • Knurled Periphery: Not provided
233062PC2
NSN 1240-00-382-1029
  • Thread Class: 3b
  • Thread Pitch Diameters: +1.7899 to 1.7990 inches
  • Thread Direction: Right-hand
  • Thread Length: 0.120 inches
  • Overall Length: 0.220 inches
233074PC9
NSN 1240-00-382-1037
  • Thread Class: 3b
  • Thread Pitch Diameters: +1.3412 to 1.3547 inches
  • Thread Direction: Right-hand
  • Thread Length: 0.170 inches
  • Overall Length: 0.570 inches
415264PC1
NSN 1240-00-382-1470
  • Thread Class: 2a
  • Thread Pitch Diameters: +2.3494 to 2.3750 inches
  • Thread Direction: Right-hand
  • Thread Length: 0.062 inches
  • Overall Length: 0.085 inches
415268PC11
NSN 1240-00-382-1480
  • Overall Length: 0.125 inches
  • Outside Diameter: 0.406 inches
  • Aperture Diameter: 0.142 inches
  • End Application: Telescope mk90
  • Internal Flange Thickness: 0.054 inches
415499PC5 Alternates: 30436PC5
NSN 1240-00-382-1521
  • Outside Diameter: 2.125 inches
  • Aperture Diameter: 1.364 inches
  • Mounting Configuration: Six holes threaded 0.125-nf-3
  • Internal Flange Thickness: 0.154 inches
  • Knurled Periphery: Not provided
417663PC3 Alternates: 417663-3
NSN 1240-00-382-5737
  • Outside Diameter: 1.302 inches
  • Aperture Diameter: 1.062 inches
  • End Application: Gun sight mk15
  • Internal Flange Thickness: 0.046 inches
  • Knurled Periphery: Not provided
654777 Alternates: 265201
NSN 1240-00-382-5896
  • Outside Diameter: 2.062 inches
  • Thread Size: 1 7/8-32
  • Aperture Diameter: 1.875 inches
  • Screw Thread Series Designator: Uns
  • Thread Location: Internal
481117PC4 Alternates: 265451, 481117-4, 654780
NSN 1240-00-382-5897
  • Outside Diameter: 3.375 inches
  • Aperture Diameter: 3.125 inches
  • End Application: Gun sight mk15
  • Internal Flange Thickness: 0.062 inches
  • Groove Location: Inside face of flange
11731298
NSN 1240-00-419-9558
  • Outside Diameter: 2.344 inches
  • Aperture Diameter: 1.594 inches
  • End Application: Periscope
  • Internal Flange Thickness: 0.062 inches
  • Knurled Periphery: Not provided
8626446
NSN 1240-00-462-8646
  • Outside Diameter: 2.310 inches
  • Aperture Diameter: 2.000 inches
  • Thread Location: Internal
  • Internal Flange Thickness: 0.065 inches
  • Knurled Periphery: Not provided
7580294
NSN 1240-00-507-8278
7644379 Alternates: 5355005079018
NSN 1240-00-507-9018
  • Thread Class: 2b
  • Thread Direction: Right-hand
  • Thread Length: 0.250 inches
  • Overall Length: 0.406 inches
  • Outside Diameter: 2.750 inches
5204660
NSN 1240-00-520-4660
  • Groove Diameter: 2.406 inches
  • Outside Diameter: Between 2.527 inches and 2.529 inches
  • Inner Groove Width: 0.062 inches
  • Mounting Configuration: 2.292-36ns-3b internal theads around aperture
  • Thread Location: Internal
10545048
NSN 1240-00-570-9740
  • Outside Diameter: 1.785 inches
  • Mounting Configuration: No. 1-72 unf-1b 2; 0.115 diameter 2
  • Material: Plastic, mil-m-14, type mfe
  • Material: Plastic phenolic and silica
8574769 Alternates: 1240006762179
NSN 1240-00-676-2179
  • Outside Diameter: 2.875 inches
  • Aperture Diameter: 2.250 inches
  • Internal Flange Thickness: 0.188 inches
  • Knurled Periphery: Not provided
  • Material: Steel, qq-s-633, fsb1112-canceled
895079 Alternates: 31150-542
NSN 1240-00-676-4608
  • Outside Diameter: 1.127 inches
  • Aperture Diameter: 1.000 inches
  • Internal Flange Thickness: 0.127 inches
  • Knurled Periphery: Not provided
  • Special Features: One unthreaded countersunk hole 0.100 in. Dia
8574785 Alternates: 1240006828064
NSN 1240-00-682-8064
  • Thread Class: 3b
  • Thread Pitch Diameters: +0.0625 to 0.7500 inches
  • Thread Direction: Right-hand
  • Thread Length: 0.782 inches
  • Outside Diameter: 3.060 inches
7604739 Alternates: BL90254
NSN 1240-00-760-4739
  • Overall Length: Between 0.185 inches and 0.191 inches
  • Outside Diameter: Between 2.295 inches and 2.297 inches
  • Aperture Diameter: Between 1.434 inches and 1.440 inches
  • Internal Flange Thickness: Between 0.062 inches and 0.064 inches
  • Knurled Periphery: Not provided
7688717 Alternates: 1240007688717
NSN 1240-00-768-8717
  • Thread Class: 2a
  • Thread Direction: Right-hand
  • Groove Diameter: Between 1.207 inches and 1.217 inches
  • Thread Length: 0.296 inches
  • Overall Length: 0.399 inches
7688772
NSN 1240-00-768-8772
  • Thread Class: 2a
  • Thread Direction: Right-hand
  • Groove Diameter: Between 1.435 inches and 1.445 inches
  • Thread Length: 0.187 inches
  • Overall Length: 0.300 inches