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 NAS1330S04-81

Thread Size

N/A #4-40 UNC-3B

Grip Range
(Min. - Max.)

N/A .050 - .081

Identifying Mark

N/A BLANK

A
± .015

N/A 0.370

M
REF

N/A 0.235

L
± .015 (Closed End Keyless)

N/A 0.525

J
NOM (Closed End Keyless)

N/A 0.390

K
NOM (Closed End Keyless)

N/A 0.235

L
± .015 (Closed End Keyed)

N/A 0.525

J
NOM (Closed End Keyed)

N/A 0.390

K
NOM (Closed End Keyed)

N/A 0.235

ØB
± .015

N/A 0.263

C
NOM

N/A 0.051

ØD
+.000/-.004

N/A 0.155

Install Drill Size
REF

N/A 5/32

Install Hole Size
Min. - Max.

N/A .155 - .157

E
MAX

N/A 0.198

F
+.005/-.000

N/A 0.054

P
+.003/-.000

N/A 0.062

H

N/A .046 - .048

Pull Up Factor

N/A .055