Serving our customers with quality and safety first.
4158-00, nsn 2995002265916
spur gear sector 54 teeth, 48 dia.pitch, pitch dia 1.125, pressure angle 20 degrees, face width 0.187, distance from first end hub to gear face 0.240, distance from second end hub end to gearface 0.273, 2 protruding hubs at both ends, first end hub dia 0.1870 min 0.1873 max, second end hub dia 0.170 shaft dia 0.340, tapers to 0.250, 1/4-36 sae std. serrations grind to 0.2432 p.d. 0.2660/0.2627, 0.06 long case harden 58-62Rc to 0.003-0.005 dp core hardness 40-44 rc per MIL-S-6090, material 4620 stlfine grain per MIL-S-7493
miscellaneous engine accessories, aircraft
Schedule B number: 8483409000
nmfc 197339
Gears and gearing, other than toothed wheels, chain sprockets and other transmission elements entered separately
FSC 2995 ⁓ Miscellaneous engine accessories, aircraft
Note-items classified in this class must be specifically designed for use with aircraft or quided missile primemovers only.
Excluding exhaust system; (fsc 1560); jet engine hydraulic reservoirs (fsc 2840); jet engine oil tanks (fsc 2840); electrical starters (fsc 2925); cockpit mounted control quadrants (fsc 1680); aircraft engine covers (fsc 1730).
Used on 4158-00,nsn 2995002265916.