Product Description

NAS517-3-1 is a close-tolerance alloy steel machine screw with a 100° flat countersunk head for flush installations where precise fit is required in #10-32 UNF threaded holes in aerospace and related mechanical assemblies.

0 1. Overview

This screw uses a #10 diameter with a #10-32 UNF right-hand thread and has an overall length of 0.469 inch. The thread length ranges from 0.332 to 0.469 inch, supporting full engagement in matching tapped components. The head diameter falls between 0.337 and 0.387 inch, matching 100° countersinks in structural and hardware interfaces.

The fastener is manufactured from alloy steel grade 8630 and is finished with a cadmium/chromate coating. The coating meets AMS-QQ-P-416 Type II Class 3, providing a protective plated surface. The screw uses a Phillips drive and a flat countersunk head configuration.

The screw is qualified to National Aerospace Standard requirements and carries MIL-S-6050 and AN-S-9 qualifications along with FAA-STD approval. The part is supplied as a domestic item and is packaged in quantities of 100 pieces per pack, with a listed weight of 0.4 pounds per pack. Dimensional data for packaged stock indicate approximate package dimensions of 0.476 by 0.345 by 0.345 inch for handling and storage.

0 2. Key Features

  • #10 diameter with #10-32 UNF right-hand thread
  • Overall screw length of 0.469 inch
  • Flat 100° countersunk head for flush installation
  • Phillips drive configuration
  • Close-tolerance machine screw design
  • Alloy steel construction, grade 8630
  • Cadmium/chromate finish to AMS-QQ-P-416 Type II Class 3
  • Tensile strength of 160000 psi
  • Thread length range from 0.332 to 0.469 inch
  • Head diameter range from 0.337 to 0.387 inch
  • Thread class 3A for close fit
  • Qualified to National Aerospace Standard requirements
  • Meets MIL-S-6050 and AN-S-9 qualifications
  • Holds FAA-STD approval
  • Supplied as a domestic item
  • Packaged 100 screws per pack
0 3. Specifications

Part Number: NAS517-3-1
Screw Type: Close-tolerance machine screw
Diameter: #10
Thread Size: #10-32
Thread Type: UNF
Thread Direction: Right hand
Thread Class: 3A
Length: 0.469 in
Thread Length: 0.332 to 0.469 in
Head Type: Flat countersunk, 100°
Head Diameter: 0.337 to 0.387 in
Drive Type: Phillips
Material: Alloy steel, grade 8630
Finish: Cadmium/chromate
Tensile Strength: 160000 psi
Technical Standards: National Aerospace Standard; AMS-QQ-P-416 Type II Class 3; MIL-S-6050; AN-S-9; FAA-STD
Domestic/Import Status: Domestic
Pack Quantity: 100 per pack
Package Weight: 0.4 lb per pack
Package Dimensions: 0.476 × 0.345 × 0.345 in

FAQs

01. What is the thread size and type for NAS517-3-1?

NAS517-3-1 uses a #10-32 UNF right-hand thread with thread class 3A.

02. What head style and angle does NAS517-3-1 use?

NAS517-3-1 has a flat countersunk head with a 100 degree head angle.

03. What material and finish are used for NAS517-3-1?

NAS517-3-1 is made from alloy steel grade 8630 with a cadmium and chromate finish meeting AMS-QQ-P-416 Type II Class 3.

04. What is the tensile strength rating for NAS517-3-1?

NAS517-3-1 has a tensile strength rating of 160000 psi.

05. Which standards and qualifications apply to NAS517-3-1?

NAS517-3-1 conforms to National Aerospace Standard requirements and is qualified to MIL-S-6050, AN-S-9, AMS-QQ-P-416 Type II Class 3, and FAA-STD approvals.

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