Howmet Fastening Systems
Howmet Fastening Systems
Phone: Sales +1 800 992 4444
Technical Support +1 310 784 6409
Email: HFSTechSupport@howmet.com
Website: www.hfs.howmet.com
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Unit of Measure

Specifications

Insert Type

 N/A Solid

Series

 N/A R1000SM

Material Type

 N/A 303 CRES

Material Specification

 N/A ASTM A582 or AMS 5640

Finish

 N/A Passivate per AMS2700
Lockring Rosan Part Number1 N/A RLRR56SM11
Lockring Military Part Number2 N/A MS51990-110P

Internal Thread Lock

 N/A No

A - Dia ±.005

 N/A 0.673 in

B - External Thread

 N/A 0.7500-16

B - External Thread - Pitch Diameter

 N/A 0.7097-0.7122 in

B - External Thread - Minor Diameter

 N/A 0.6656-0.6761 in

C ±.015

 N/A 0.880 in

D ±.015

 N/A 0.620 in

Tools

Aluminum Step Drill Part Number3 N/A RCDC56-687
Magnesium Step Drill Part Number4 N/A RCADC56-687
Basic Tap Size5 N/A 0.7500-16 UNF

Wrench Part Number

 N/A R1111W

Lockring Drive Tool Part Number

 N/A R1111D
Removal Drill Size6 N/A 11/16

Notes

N/A

  • The external thread has a special pitch diameter and minor diameter which installs into a MIL-S-7742 class 3B, FED-STD-H28/2, or National class 3 tapped hole.
  • Vendor Substantiation Required
  • Part must conform to M50TF9, Class A (Vendor designed parts)
  • 1 Mating lockring is not included with insert. It must be ordered separately.
  • 2 Mating lockring is not included with insert. It must be ordered separately.
  • 3 Step drills are designed for thru hole drilling. When used to drill a blind hole, it may be necessary to grind the drill to suit the depth required.
  • 4 Step drills are designed for thru hole drilling. When used to drill a blind hole, it may be necessary to grind the drill to suit the depth required.
  • 5 Taps and Removal drills are available for order.
  • 6 Taps and Removal drills are available for order.