N20-74-91 – Nuts – Hex 1.625″ – Thread Size 1.250-18 – Thickness 625

SKU: N20-74-91

$18.20

3 in stock

Description

N20-74-91 driveshaft nut, 1.250-18 thread, 1.625 inch hex, 0.625 inch thickness for slip yoke retention.

Full Description

N20-74-91 Driveshaft Retaining Nut -- 1.250-18 Thread

The N20-74-91 is a standard hex nut for slip yoke retention, sharing the 1.250-18 thread and 1.625-inch hex with the 231502 family. The different part number designates a different sourcing or specification origin while maintaining dimensional compatibility. Verify thread engagement by threading the nut onto the shaft by hand before using a wrench -- any resistance at the start of engagement suggests thread damage on either the shaft or the nut.

SpecValue
SKUN20-74-91
Thread1.250-18 UNF
Hex1.625"
Thickness0.625"

Torque to the transmission manufacturer's specification. Overtorquing a retaining nut on a slip yoke can distort the yoke bore, reducing the clearance of the U-joint caps and preventing proper articulation. Under-torquing allows the yoke to move axially on the output shaft, wearing both the shaft splines and yoke bore.

Additional information
Hex1.625
NotesFlange Diameter is 2.500”
Partn numberN20-74-91
Self lockingY
Thickness625
Thread size1.250-18

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20-74-91 driveshaft part image - 20-74-91 – Nuts – Hex 1.625" – Thread Size 1.250-18 – Thickness 0.63
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