Part Number HM025-677-1

Spur Gear

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Part Number
DEMIL
Shelf Life
UOM
NIIN
Part:
hm025-677-1
Demil:
No
Shelf Life:
UOM:
NIIN:
012388339

Part Information
Heat treat to rc 31-36 per mil-h-687 (140-160 ksi tensile strength); spur gear data: diametral pitch=9, addendum=0.1111, root dia.=1.944, max. Tooth thk.=0.17253, meas. Over pins=2.4832, pindia.=0.192, testing pressure(oz.)=33-39, center distance radius=1.1043, max. Tooth-tooth composite error=0.00161, max.Total composite error=0.00425, no. Of teeth(mating gear) =40, nom. Center distance=3.333; spline data: base dia.=0.50518, class of fit=5, spline pitch=24/48, pin dia.=0.072, dia. Between pins=0.4826, form dia. Min.=0.629, tooth form=flatroot side fit involute per ansi b92.1-1970

NSN
National Stock Number:
3020-01-238-8339 3020012388339
TXT
Description:
Spur Gear
INC
INC
Item Name Code:
05466
MRC:
The style designation indicating the configuration that most nearly corresponds to the appearance of the body.AAQL
Body Style:
Plain, solid
MRC:
The number of splines on or in the item.ABSA
Spline Quantity:
14 both ends
MRC:
A measurement indicating the diameter-pitch per specific measurement scale of the item.AGJS
Pitch Diameter:
2.2222 inches
MRC:
The number of teeth included on the item.AJLA
Teeth Quantity:
20
MRC:
The style designation indicating the configuration that most nearly corresponds to the appearance of the bore.ANTP
Bore Style:
Involute spline both ends
MRC:
A measurement of the spline pitch diameter.BDTX
Spline Pitch Diameter:
0.58333 inches both ends
MRC:
The nominal length of a straight line which passes through the center of an item,and terminates at the outside circumference.CWCD
Outside Diameter:
2.444 inches
MRC:
An indication as to whether the teeth are a standard depth or modified to a shorter depth.CWNH
Tooth Form:
Standard
MRC:
The measurement of the pressure angle on the item.CWPP
Pressure Angle:
20.0000 degrees
MRC:
A measurement taken at right angles to the length of the face,in distinction from thickness.CWRM
Face Width:
0.250 inches
MRC:
The nominal length of a straight line which passes through the center of a bore,and terminates at the circumference.CWRS
Bore Diameter:
0.644 inches both ends
MRC:
The chemical compound or mechanical mixture properties of which the item is fabricated.MATT
Material:
Steel comp 4140
MRC:
The specification,standard,or manufacturers reference,and the classification designation,such as class,condition,temper,and the like,that identifies the material.MDCL
Material Specification:
Mil-s-5636 military specification single material response
MRC:
The metallic,nonmetallic,and/or chemical properties with which the item is plated,dipped,and/or coated.the treatment is designed to protect the surface(s) and cannot be wiped off.SFTT
Surface Treatment:
Oxide
MRC:
The specification,standard,or manufacturers reference,and the classification designation,such as type,class,grade,and the like,that identifies the surface treatment material.STDC
Surface Treatment Specification:
Mil-c-13924, class 1 military specification single treatment response
MRC:
The style designation indicating the configuration that most nearly corresponds to the appearance of the item.STYL
Style Designator:
Hubless

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