Part Number
DEMIL
Shelf Life
UOM
NIIN
NSN
National Stock Number:
TXT
Description:
Flat Pulley
MRC:
The length of a straight line which passes through the center of an item,and terminates at the outside circumference.ABHE
Outside Diameter:
Between 0.999 inches and 1.001 inches
MRC:
The dimension measured along the longitudinal axis with terminated points at the extreme ends of the item.ABHP
Overall Length:
0.718 inches
MRC:
Designates the thread diameter and number of threads per specific measurement scale.ABUJ
Thread Size:
No. 6 /0.138/-32
MRC:
The length of a straight line which passes through the center of a circular bore,and terminates at the circumference.ABXV
Bore Diameter:
0.375 inches
MRC:
A measurement of the longest dimension of a bore.ADGE
Bore Length:
0.718 inches
MRC:
The number of holes provided for securing the item in a fixed position.AHYF
Securing Hole Quantity:
2
MRC:
The element,compound,or mixture of which the item is fabricated,excluding any surface treatment,and its location.ANNQ
Material And Location:
Steel, qq-s-763, class 310
MRC:
A measurement taken at right angles to the length of the face,in distinction from thickness.AQPL
Face Width:
0.312 inches
MRC:
The physical configuration of the item.ARJD
Design Form:
Plain
MRC:
Indicates the type of bore used on the item.ASBP
Bore Type:
Straight
MRC:
An indication of whether or not bearings are included.AWJQ
Bearings:
Not included
MRC:
An indication of whether or not a counterbore feature is included.AXND
Counterbore Feature:
Not included
MRC:
Indicates the location of the hole on the item.BFYT
Hole Location:
90 degrees apart 0.218 in. From hub end
MRC:
An indication of whether or not a keying facility is included.BSGG
Keying Facility:
Not included
MRC:
The means by which the item is secured.BSNP
Securing Method:
Threaded hole
MRC:
An indication of whether or not a split hub feature is included.BSYG
Split Hub Feature:
Not included
MRC:
An indication of whether or not a lightening hole/s/ is included.BXSJ
Lightening Hole:
Not included
MRC:
An indication of whether or not an integral cooling vane(s) is included.BXSK
Integral Cooling Vane:
Not included
MRC:
An indication of whether or not a crown face is included.BXSL
Crown Face:
Included
MRC:
Indicates the type of rim provided.BYDP
Rim Type:
Solid
MRC:
An indication of whether or not a bore feature is included.BYDS
Bore Feature:
Included
MRC:
An indication of the characteristic of the protruding hub.BYDZ
Protruding Hub Characteristic:
Stepped
MRC:
Indicates the location for securing the item.BYFF
Securing Location:
Aa end
Hub End Outside Diameter And Location:
0.500 inches aa end
Distance From Outside Flange/rim To Hub End And Location:
0.406 inches aa end
MRC:
The largest diameter and location of the first step face.BYZL
First Step Face Largest Diameter And Location:
0.625 inches both ends
MRC:
The length and location of the first step.BYZN
First Step Length And Location:
0.032 inches both ends
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:
Passivate
MRC:
The style designation indicating the configuration that most nearly corresponds to the appearance of the item.STYL
Style Designator:
Plain
MRC:
Consists of plating,dip,and/or coating that cannot be wiped off.plating and/or coating is any chemical and/or metallic additive,electrochemical,or mild mechanical process which protects a surface.SURF
Surface Treatment:
Passivated
MRC:
A feature of the item of supply which must be specifically recorded when the reference number covers a range of items.ZZZY
Reference Number Differentiating Characteristics:
Mil-q-21549b-sp24-1
