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 NAS1330S4E-151

Thread Size

N/A 1/4-20 UNC-3B

Grip Range
(Min. - Max.)

N/A .089 - .151

Identifying Mark

N/A BLANK

A
± .015

N/A 0.687

M
REF

N/A 0.440

L
± .015 (Closed End Keyless)

N/A 1.000

J
NOM (Closed End Keyless)

N/A 0.750

K
NOM (Closed End Keyless)

N/A 0.435

L
± .015 (Closed End Keyed)

N/A 1.000

J
NOM (Closed End Keyed)

N/A 0.750

K
NOM (Closed End Keyed)

N/A 0.435

ØB
± .015

N/A 0.529

C
NOM

N/A 0.089

ØD
+.000/-.004

N/A 0.332

Install Drill Size
REF

N/A Q

Install Hole Size
Min. - Max.

N/A .332 - .338

E
MAX

N/A 0.382

F
+.005/-.000

N/A 0.054

P
+.003/-.000

N/A 0.062

H

N/A .056 - .058

Pull Up Factor

N/A .095