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Sprocket Wheel

NSN: 3020-00-257-1505 | Model: 2527855

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
3020-00-257-1505
DEMIL
NO
Spline Major Diameter
0.875 inches
Counterbore Diameter
0.937 inches
Counterbore Depth
0.968 inches
Outside Diameter
7.586 inches
Overall Length
2.468 inches
Spline Quantity
80
Spline Minor Diameter
0.792 inches
Pitch Diameter
7.175 inches
Face Width
0.459 inches
Design Form
Plain
Bore Type
Involute spline
Metallic Hardness Rating And Location
45.0 rockwell c body and 50.0 rockwell c body
Spline Pressure Angle In Deg
30.0
Spline Length
1.300 inches
Counterbore Feature
Included
Spline Pitch Diameter
0.833 inches
Counterbore Location
Aa end
Keying Facility
Not included
Lightening Hole
Not included
Protruding Hub Characteristic
Stepped
Groove/step Location
Aa end
Belt/chain/film Size For Which Designed
Roller chain
Roller Chain Pitch Type For Which Designed
Single pitch
Teeth Row Quantity
1
Teeth Quantity Per Row
30
Hardness Rating Test Method
Rockwell
Teeth Hardness Rating
Between 200.0 brinell standard and 240.0 brinell standard
Bore Bearing
Not included
Hub External Keyway
Not included
Tooth Pitch
0.750 inches
Hub End Outside Diameter And Location
1.625 inches aa end and 1.625 inches bb end
Distance From Outside Flange/rim To Hub End And Location
1.812 inches aa end and 0.094 inches bb end
First Step Face Largest Diameter And Location
1.625 inches aa end
First Step Length And Location
0.937 inches aa end
Second Step Length And Location
0.875 inches aa end
Hub End Outside Diameter And Location
1.500 inches aa end
Distance From Outside Flange/rim To Hub End And Location
1.812 inches aa end
Material
Steel, aisi 4140 or steel, qq-s-624, comp 4140, cond hr-canceled
Material
Steel comp 4140 or steel, qq-s-624, comp 4140, cond hr-canceled
Material Specification
Aisi 4140 assn standard 1st material response
Style Designator
Plain

Pricing and Availability

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NSN 3020-00-257-1505 Datasheet

Supply Class (FSC):
Transmission Chain Sprockets Pulleys Gears
Cross Reference:
  • 2527855
Cage Codes:
  • Navair and Navsea Managed (CAGE 10001)
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

A - Item does not contain precious metal.

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.

  • 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

NSN Management Codes:
  • SOS
    Sms
  • AAC
    Z
  • Quantity per pack
    1
  • Unit of Measure
    Ea
  • Shelf Life
    N/A
  • Classification Control
    U
  • MGMT_CTL
    9b-----
  • Repariability

Questions & Answers:
What are the historical prices recorded for this stock number?
Historical data shows pricing from $3,829.74 to $6,382.90..
Does NSN 3020-00-257-1505 have a shelf life?
No. There is no shelf life applicable for this NSN.
What NATO entities are users of this NSN?
Department Of The Navy, Spain, Australia, New Zealand, Republic Of Korea, and Turkey
What is the NIIN of NSN 3020-00-257-1505?
002571505 or 00-257-1505
Does NSN 3020-00-257-1505 require demilitarization?
Yes - ITAR Controlled
What is the most recent solicitation for NSN 3020-00-257-1505?
No solicitations for this NSN.
When was this national stock number assigned to the federal catalog?
Mar 19, 1971