Product Details | FLAT PULLEY

3020-00-321-6403 A pulley with a straight or crowned face. The item may include belt aligning flange(s). Excludes PULLEY, CONE. For pulleys encased in a shell or frame, see BLOCK, TACKLE.

Part Alternates: 37883, 8699767, 3020-00-321-6403, 00-321-6403, 3020003216403, 003216403

Mechanical Power Transmission Equipment | Gears, Pulleys, Sprockets, and Transmission Chain

Supply Group (FSG) NSN Assign. NIIN
30 01 JAN 1963 00-321-6403

Drawings & Photos | NSN 3020-00-321-6403


Cross Reference | NSN 3020-00-321-6403

Part Number Cage Code Manufacturer
37883 35510 PRESTOLITE ELECTRIC INC
8699767 19207 U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM

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Technical Data | NSN 3020-00-321-6403

Characteristic Specifications
STYLE DESIGNATOR A20 WEBBED OR SPOKED
OUTSIDE DIAMETER 8.375 INCHES NOMINAL
OVERALL LENGTH 3.812 INCHES NOMINAL
PITCH DIAMETER 5.437 INCHES MINIMUM AND 5.446 INCHES MAXIMUM
FACE WIDTH 0.689 INCHES NOMINAL
HUB END OUTSIDE DIAMETER AND LOCATION 2.000 INCHES NOMINAL AA END AND 1.625 INCHES NOMINAL BB END
DISTANCE FROM OUTSIDE FLANGE/RIM TO HUB END AND LOCATION 2.988 INCHES NOMINAL AA END AND 2.187 INCHES NOMINAL BB END
DESIGN FORM WEBBED
WEB/SPOKE RELATIONSHIP TO FACE CENTERLINE NOT OFFSET
LIGHTENING HOLE NOT INCLUDED
INTEGRAL COOLING VANE NOT INCLUDED
CROWN FACE NOT INCLUDED
MATERIAL AND LOCATION IRON, QQ-I-666, GRADE 2 OVERALL
SURFACE TREATMENT PHOSPHATE AND ENAMELED
RIM TYPE SOLID
FLANGE QUANTITY 1
FLANGE LOCATION OUTSIDE
OUTSIDE DIAMETER 8.375 INCHES NOMINAL
FLANGE WIDTH 0.125 INCHES NOMINAL
BORE FEATURE INCLUDED
BEARINGS NOT INCLUDED
BORE TYPE TAPERED
BORE LENGTH 1.500 INCHES NOMINAL
TAPER BORE MAJOR DIAMETER 1.001 INCHES NOMINAL
TAPER BORE MINOR DIAMETER 0.814 INCHES NOMINAL
TAPER MAJOR DIAMETER LOCATION AA END
COUNTERBORE FEATURE NOT INCLUDED
KEYING FACILITY INCLUDED
KEYING FACILITY TYPE KEYWAY
QUANTITY 1
KEYWAY WIDTH 0.251 INCHES MINIMUM AND 0.253 INCHES MAXIMUM
DISTANCE FROM CENTER OF BORE TO BOTTOM OF KEYWAY 0.633 INCHES NOMINAL
PROTRUDING HUB CHARACTERISTIC PLAIN
SPLIT HUB FEATURE NOT INCLUDED
SECURING METHOD DRILLED HOLE
SECURING LOCATION PULLEY SURFACE
SECURING HOLE QUANTITY 1
HOLE LOCATION ON PULLEY SURFACE
DRILLED HOLE DIAMETER 0.250 INCHES NOMINAL

Restrictions/Controls & Freight Information | NSN 3020-00-321-6403

Category Code Description
Hazardous Material Indicator CodeNThere is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials
Demilitarization Code:ANon-Munitions List Item/ Non-Strategic List Item - Demilitarization not required.
Precious Metals Indicator Code:UPrecious metal type is unknown
Criticality Code:X The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Category Code Description
NMF Description 127300 PULLEY BLOCKS/TCKLE/SNATCH/FAIRLDRS
Less than car load rating
Less than truck load rating S 60.0
Water commodity Code 593 unknown
Originating Activity Code XX
Air Dimension Code A Shipment is not a consolidation and does not exceed 72 inches in any dimension.
Air Commodity V Vehicles, machinery, shop and warehouse equipment and supplies, including special tools and equipment, ground servicing and special purpose vehicles, marine equipment and supplies, repair and maintenance parts for the above.
Air Special Handling Z No special handling required.
Special Handling Code 9 unknonwn
HAZMAT
Type of Cargo Z No special type of cargo code applicable