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KNH, MS51831, NAS1395 Series
Unit of Measure

Insert Type

Heavy Duty

Material

Nitronic 60 per ASTM-A-479 or AMS 5848

Finish Description

Passivate per AMS 2700

Lube Description

Dry Film Lubricant per AS5272, Type 1

Internal Thread Lock

Yes

Internal Thread Size

0.1640-32 UNJC-3B

External Thread Size

0.3125-18 UNC-2A

Modified Minor Diameter

0.256/0.249

Shear Engagement Area (in²) Ref.

0.0945

C DIA ±.005

0.172

C'Bore Depth ±.010

0.040

L ±.010

0.312

A (Ref.)

0.290

Tap Drill Diameter

0.276/0.271

C'Sink Diameter
+.010
-.000

0.323

Thread Tap Size

0.3125-18 UNC-2B

Thread Tap Depth Min

0.370

Installation Tool Part Number

THD 0832L

Removal Drill Size

0.219

Drill Depth ±.010

0.1250