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Part number reflects steel, open-end, non-keyed, with cadmium yellow plating only.

Please refer to the part numbering system above for further configurations.

All dimensions below are in inches.
Unit of Measure

NAS Part Number

 N/A NAS1330S5E-331

Thread Size

 N/A 5/16-18 UNC-3B

Grip Range
(Min. - Max.)

 N/A .256 - .331

Identifying Mark

 N/A 2 RAD

A
± .015

 N/A 1.000

M
REF

 N/A 0.550

L
± .015 (Closed End Keyless)

 N/A 1.406

J
NOM (Closed End Keyless)

 N/A 0.955

K
NOM (Closed End Keyless)

 N/A 0.550

L
± .015 (Closed End Keyed)

 N/A 1.406

J
NOM (Closed End Keyed)

 N/A 0.955

K
NOM (Closed End Keyed)

 N/A 0.550

ØB
± .015

N/A 0.656

C
NOM

N/A 0.104

ØD
+.000/-.004

 N/A 0.413

Install Drill Size
REF

 N/A Z

Install Hole Size
Min. - Max.

 N/A .413 - .423

E
MAX

N/A 0.505

F
+.005/-.000

 N/A 0.120

P
+.003/-.000

 N/A 0.128

H

 N/A .097 - .102

Pull Up Factor

 N/A .120