Product Description

Flat steel washer sized for a 3/8 inch bolt, used to provide a bearing surface and spacing in aircraft hardware assemblies.

0 1. Overview

The AN960-616 designation identifies a flat steel washer in the AN960 series with dimensions matched to 3/8 inch hardware. The related NAS part NAS1149F0663P is specified as the superseding number for this washer size. In the reference chart for this dash size, the outside diameter is given as 0.625 inch, the inside diameter as 0.390 inch, and the regular thickness as 0.063 inch. The AN960 washer family is described as providing a smooth bearing surface under hex nuts, serving as shims to obtain correct grip length for bolt and nut assemblies, and adjusting the position of AN310 and AN320 castle nuts relative to drilled cotter pin holes in bolts and clevis pins. The series is produced in regular and light thickness, with the light series identified by the added “L” in the dash number. An associated Cleveland washer carries part number 095-10600 and is tagged with the AN960-616 designation.

0 2. Key Features

  • AN960 series flat washer for 3/8 inch bolts or screws
  • Regular series thickness for this size
  • Outside diameter of 0.625 inch
  • Inside diameter of 0.390 inch
  • Thickness of 0.063 inch for the regular washer
  • Superseding NAS number NAS1149F0663P for this size
  • Used to provide a smooth bearing surface under hex nuts
  • Used as a shim to obtain correct grip length in bolt and nut assemblies
  • Used to adjust position of AN310 and AN320 castle nuts relative to cotter pin holes
0 3. Specifications

Part Number: AN960-616
Superseding NAS Number: NAS1149F0663P
Associated Part Number: 095-10600 (Cleveland washer with AN960-616 designation)
Washer Type: AN960 flat steel washer
Bolt / Screw Size: 3/8 in
Outside Diameter: 0.625 in
Inside Diameter: 0.390 in
Thickness (regular series): 0.063 in
Series Options: Regular and light thickness variants in the AN960 family

FAQs

01. What bolt size is the AN960-616 washer designed to fit?

The AN960-616 washer is designed for use with 3/8 inch bolts or screws.

02. What are the dimensions of the AN960-616 washer?

The AN960-616 washer has an outside diameter of 0.625 inch, an inside diameter of 0.390 inch, and a regular series thickness of 0.063 inch.

03. What NAS part number corresponds to the AN960-616 washer?

The AN960-616 washer corresponds to NAS part number NAS1149F0663P.

04. How is the light series version of an AN960 washer identified?

The light series version of an AN960 washer is identified by adding the letter “L” to the dash number.

05. What functions do AN960 flat washers perform in an assembly?

AN960 flat washers provide a smooth bearing surface under hex nuts, act as shims to obtain the correct grip length for bolt and nut assemblies, and adjust the position of AN310 and AN320 castle nuts relative to drilled cotter pin holes in bolts and clevis pins.

Didn’t find your answer?

Don't hestitate to contact us, we’ll reply as soon as possible.