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KNH, MS51831, NAS1395 Series
Unit of Measure

Insert Type

Heavy Duty

Material

A286 CRES per AMS 5731, AMS 5732, AMS 5734, or AMS 5737, 140 KSI Minimum Tensile Strength

Finish Description

Passivate per AMS 2700

Lube Description

Dry Film Lubricant per AS5272, Type 1

Internal Thread Lock

No

Internal Thread Size

0.3750-16 UNJC-3B

External Thread Size

0.5625-12 UNC-2A

Modified Minor Diameter

0.503/0.495

Shear Engagement Area (in²) Ref.

0.4975

C DIA ±.005

0.380

C'Bore Depth ±.010

0.070

L ±.010

0.500

Tap Drill Diameter

0.521/0.515

C'Sink Diameter
+.010
-.000

0.572

Thread Tap Size

0.5625-12 UNC-2B

Thread Tap Depth Min

0.560

Installation Tool Part Number

THD 616L

Removal Drill Size

0.469

Drill Depth ±.010

0.1875