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21
32
30.0000 degrees
base dia 0.72257 ref, root dia 0.772-0.762, involute form dia 0.8013 max., circular tooth thickness max. 0.25032 ref on standard pitch dia 0.84375 ref, measurement over two pins 0.9405-0.9378 pin dia 0600, tooth parallelism error a cross face width w/ref to axis of c dia 0.0004 max, total composite error 0.0015 max, tooth to tooth composite error 0.0007 max, roll on axis of c dia w/master gear 311610, mates with p/n 530956, at center distance of 0.7128-0.7098, exteranl spline data asa B575-1950 standard involute 26 teeth, diametral pitch 10196, pressure angle 30 deg, type flat acct side fit class a, minor dia 5127-5056, measurement over 0.0400 dia pins, 0.6005 max ref 0.5989 min, circular tooth thickness w/gage 0.0322 max effective, tooth parallelism error across face width 0.0004 max ref, eccentricity of pitch dia w/axis of c dia 0.003 fir max
A gearshaft with a single complement of spur gear teeth. For items with more than one complement of teeth, see gearshaft (1), multiple gears.
Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
Item does not contain precious metal.
The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
HMIC: Hazardous Material Indicator Code. A one position code that identifies a hazardous item.
PMIC: Precious Metal Indicator Code. A one position code which identifies items that have precious metals as part of their content. precious metals are those metals generally considered to be uncommon, highly valuable, and relatively superior in certain properties such as resistance to corrosion and electrical conductivity.
ESD: Electrostatic Discharge. Indicates if an item is susceptible to electrostatic discharge or electromagnetic interference damage. electrostatic discharge damage occurs when an accumulation of static electricity generated by the relative motion or separation of materials is released to another item by direct contact. electromagnetic interference damage occurs when an item comes into proximity with an electrostatic or magnetic field.
ENAC: Enviromental Attribute Code. Identifies items with environmentally preferred characteristics.
CRITL: Criticality Indicator Code. Indicates an item is technically critical by tolerance, fit, application, nuclear hardness properties, or other characteristics.