Product Description

This part is a flat washer in the AN960-10 size for use with No. 10 aircraft bolts and screws in structural and general hardware assemblies.

0 1. Overview

In this dash size the washer supersedes NAS1149F0363P and is specified for No. 10 fasteners. The nominal outside diameter is 0.438 inch, the inside diameter is 0.203 inch, and the thickness is 0.063 inch. AN960 series flat washers are used under hex nuts to provide a smooth bearing surface, as shims to obtain correct grip length in bolt and nut assemblies, and to adjust the position of AN310 and AN320 castle nuts relative to drilled cotter pin holes in bolts and clevis pins. The series is available in both regular and light thickness, with light versions identified by the addition of the letter L to the dash number.

0 2. Key Features

  • AN960-10 washer sized for No. 10 aircraft bolts and screws
  • Superseding designation NAS1149F0363P for this dash size
  • Nominal outside diameter 0.438 inch
  • Nominal inside diameter 0.203 inch
  • Nominal thickness 0.063 inch
  • Used to provide a smooth bearing surface under nuts and as shims in bolt and nut assemblies
0 3. Specifications

Part number: AN960-10
Superseding part number: NAS1149F0363P
Bolt or screw size: No. 10
Outside diameter: 0.438 in
Inside diameter: 0.203 in
Thickness: 0.063 in
Washer type: flat washer, AN960 series
Series options: regular and light thickness available in AN960 family

FAQs

01. What fastener size is the AN960-10 washer designed to fit?

The AN960-10 washer is designed for use with No. 10 bolts and screws.

02. What is the superseding NAS designation for the AN960-10 washer?

The superseding NAS designation for the AN960-10 washer is NAS1149F0363P.

03. What are the nominal dimensions of the AN960-10 washer?

The AN960-10 washer has a nominal outside diameter of 0.438 inch, an inside diameter of 0.203 inch, and a thickness of 0.063 inch.

04. How is the AN960 series washer used in aircraft hardware assemblies?

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

05. How are light series AN960 washers identified within the part numbering system?

Light series AN960 washers are identified by adding the letter L to the dash number.

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