Optical Sighting And Ranging Equipment FSG 12 — FSC 1240

NSN
NIIN
Name
Details
00-443-5257
Optical Element Holder
Used on 1240-00-348-8442. aperture opening being grooved inward at 1.469 in. dia enamel surface treated
00-449-8003
Optical Element Holder
Used on periscope. anodize surface treated
00-453-5933
Fire Control Range Finder
00-453-5936
Fire Control Range Finder
00-455-5883
Optical Instru Eyepiece Assembly
Used on tow, surface to surface missiles.
00-456-5968
Telescope Mount Holder
Used on targets/training devices.
00-457-0550
Optical Instrument Cell Assembly
2b thread class right-hand 2.276" overall length chamfer 0.015 in. by 45 deg on both ends. two 0.104 dia holes spaced 180 deg on periphery for drive facility. one no. 10-32nf-2
00-462-8643
Optical Element Holder
Used on howitzer,105mm,m102,w/m6 platform.
00-462-8645
Diopter Scale
2.550" inside diameter anodize surface treated
00-462-8646
Retaining Optical Element Ring
2.310" outside diameter
00-469-6665
Telescope Subassembly
Used on telescope.
00-469-6668
Optical Element Cell
3b thread class right-hand
00-469-6669
Telescope Subassembly
Bearing 2
00-472-4447
Diopter Scale
1.390" inside diameter 100 equal div to be engraved in 360 deg with lines .015 in. w
00-485-7295
Optical Instrument Window
00-488-1135
Optical Element Holder
00-490-5607
Optical Element Holder
1.000" overall length 0.562" overall width
00-491-5240
Telescope Subassembly
Shell 2
00-491-9676
Elbow Telescope
Used on 2530013050028,m109e32.
00-492-6071
Telescope Subassembly
Used on panoramic telescope. heat shrink 2
00-493-9232
Optical Instrument Eyeshield
3.000" overall length
00-495-6532
Optical Element Cell
2b thread class right-hand
00-497-9765
Telescope Mount
Enamel surface treated
00-498-6372
Optical Instrument Cell Assembly
2b thread class right-hand 3.921" overall length cell surface treatment mil-a-8625, type 2, class 2, dyed black. one spur gear segment on periphery 1.250 in. lg, 0.500 in. w., centered between both ends. chamfer 0.031 by 45 deg on both ends. two 0.125 dia. holes on periphery equally spaced.
00-498-6373
Optical Instrument Cell Assembly
2a thread class right-hand 1.552" overall length ecell surface treatment mil-a-8625, type 2, class 2, dyed black. chamfer 0.031 in. by 45 deg on internal thd end. two sets of four each 0.125 dia. holes, equally spaced on periphery. slotted face drive.
00-499-4247
Optical Instrument Window
Transmittance 90% t avg 8.0 to 11.5 microns. has mlar (multi-layer anti-reflection) coating.
00-503-7654
Optical Element Cell
3a thread class
00-503-7658
Optical Element Cell
3b thread class
00-503-7659
Optical Instrument Cell Assembly
3 thread class right-hand 1.156" overall length
00-503-7666
Optical Instrument Window
00-503-7820
Optical Element Holder
Oxide surface treated
00-503-9490
Optical Element Cell
3b thread class right-hand 0.365" overall width saw slot 0.03 in. x 0.03 in.
00-503-9585
Optical Element Cell
2b thread class right-hand 0.380" overall length
00-503-9588
Optical Element Cell
3b thread class
00-504-3921
Optical Element Cell
3a thread class
00-504-8251
Optical Element Cell
3b thread class oxide surface treated
00-504-8600
Optical Element Retainer
1.200" hole diameter 0.140" overall length shouldered
00-504-9940
Optical Instrument Eyeshield
1.625" overall length
00-505-5461
Ball Socket Seat
0.654" hole diameter 0.654" outside diameter periscope, battery c seat
00-505-5462
Ball Socket Seat
0.406" hole diameter 0.800" outside diameter howitzer, 105mm, M101/M101A1 seat
00-505-5463
Ball Socket Seat
0.426" hole diameter 0.497" outside diameter used on periscope, battery c seat
00-505-5464
Ball Socket Seat
0.313" hole diameter 0.563" outside diameter used on periscope, battery c seat
00-507-8278
Retaining Optical Element Ring
00-507-8280
Optical Element Cell
3a thread class 0.415" overall length
00-507-8976
Optical Instrument Case
Used on plotting sets/boards. 45.000" overall length 43.750" overall width
00-507-9015
Optical Element Cell
3b thread class
00-507-9018
Retaining Optical Element Ring
2b thread class right-hand 0.406" overall length 2.750" outside diameter anodize surface treated
00-507-9263
Optical Element Cell
2 thread class
00-507-9290
Wiring Harness
00-507-9302
Optical Instrum Reticle Assembly
Brass, halfhard
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