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Sprocket Wheel

NSN: 3020-00-038-4446 | Model: 20RH379

A toothed wheel whose teeth or sprockets are designed to be engaged with the links of a pitch chain, track, or the like. It is usually used for transmitting power.

NSN Properties and Flags
NATO Stock Number
3020-00-038-4446
DEMIL
NO
Outside Diameter
Between 3.643 inches and 3.649 inches
Overall Length
Between 2.432 inches and 2.442 inches
Keyway Width
Between 0.2515 inches and 0.2545 inches
Thread Size
3/8 -16
Bore Diameter
Between 1.249 inches and 1.250 inches
Bore Length
Between 2.432 inches and 2.442 inches
Distance From Center Of Bore To Bottom Of Keyway
Between 0.765 inches and 0.770 inches
Pitch Diameter
Between 3.662 inches and 3.682 inches
Securing Hole Quantity
2
Furnished Items And Quantity
Nonenone
Face Width
Between 2.412 inches and 2.422 inches
Guide
Not included
Design Form
Plain
Bore Type
Straight
Metallic Hardness Rating And Location
45.0 rockwell c body and 52.0 rockwell c body
Counterbore Feature
Not included
Hole Location
Located 90 degrees each side of keyway
Keying Facility
Included
Keying Facility Type
Keyway
Securing Method
Threaded hole
Lightening Hole
Not included
Protruding Hub Characteristic
Plain
Securing Location
Aa end
Belt/chain/film Size For Which Designed
Silent chain
Teeth Row Quantity
1
Teeth Quantity Per Row
23
Hardness Rating Test Method
Rockwell
Teeth Hardness Rating
Between 45.0 rockwell c and 52.0 rockwell c
Bore Bearing
Not included
Hub External Keyway
Not included
Tooth Pitch
0.500 inches
Hub End Outside Diameter And Location
2.9375 inches both ends
Distance From Outside Flange/rim To Hub End And Location
0.007 inches both ends and 0.013 inches both ends
Special Features
2 holes drilled between teeth into keyway 1/8 in. Dia, located 5/16 in.From each end; end opposite securing holes countersunk 60 deg, 1/8 in. Deep
Material
Steel, qq-s-633, fs1020-canceled
Material
Steel comp 1020
Material Specification
Qq-s-633, fs1020-canceled federal specification single material response
Quantity
1
Style Designator
Plain

Pricing and Availability

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NSN 3020-00-038-4446 Datasheet

Supply Class (FSC):
Transmission Chain Sprockets Pulleys Gears
Cross Reference:
  • 20RH379
  • 240830001
Cage Codes:
  • Teledyne Continental Motors (CAGE 14351)
  • Kaitlin Corp (CAGE 63734)
Schedule B & Trade:
  • Schedule B: 8483901000 (NAICS 333613)

    Chain sprockets and parts thereof

  • SITC: 74890

    Parts, n.E.S., for transmission shafts and cranks, bearing housings, gears, gearing, ball screws, gear boxes, flywheels and pulleys, clutches, etc.

  • End Use: 21180

    Industrial machines, other

Identification:
HMIC

N - Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

PMIC

U - Precious metal content is unknown

CRITL

- The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.

Freight Information:
  • NMFC:

    117020 - Chain and sprocket drives/wheels

  • WCC:

    593 - Motors and parts, (machinery and parts),(less than 35 feet)

  • SHC:

    9 - Other or no special handling required (sh)

  • ADC:

    A - Shipment is not a consolidation and does not exceed 84 inches in any dimension.

  • LCL:

    S - 60.0

  • LTL:

    S - 60.0

  • ACC:

    V - Trailers, vehicles, machinery, shop and warehouse equipment and supplies including special tools and equipment, ground servicing

  • TCC:

    Z - No special type of cargo code applicable

Questions & Answers:
What are the historical prices recorded for this stock number?
No pre-dated pricing for this NSN could be found.
Does NSN 3020-00-038-4446 have a shelf life?
No. There is no shelf life applicable for this NSN.
What NATO entities are users of this NSN?
Austria, and Greece
What is the NIIN of NSN 3020-00-038-4446?
000384446 or 00-038-4446
Does NSN 3020-00-038-4446 require demilitarization?
Yes - ITAR Controlled
What is the most recent solicitation for NSN 3020-00-038-4446?
No solicitations for this NSN.
When was this national stock number assigned to the federal catalog?
Jan 01, 1963