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KNH, MS51831, NAS1395 Series
Unit of Measure

Insert Type

N/A Heavy Duty

Material

N/A 303 CRES per AMS 5640 or ASTM-A-582, or 303SE per AMS 5640, AMS 5738 or ASTM-A-582

Finish Description

N/A Passivate per AMS 2700

Lube Description

N/A Dry Film Lubricant per AS5272, Type 1

Internal Thread Lock

N/A No

Internal Thread Size

N/A 0.3125-18 UNJC-3B

External Thread Size

N/A 0.5000-13 UNC-2A

Modified Minor Diameter

N/A 0.440/0.432

Shear Engagement Area (in²) Ref.

N/A 0.3588

C DIA ±.005

N/A 0.316

C'Bore Depth ±.010

N/A 0.070

L ±.010

N/A 0.437

Tap Drill Diameter

N/A 0.457/0.452

C'Sink Diameter
+.010
-.000

N/A 0.510

Thread Tap Size

N/A 0.5000-13 UNC-2B

Thread Tap Depth Min

N/A 0.500

Installation Tool Part Number

N/A THD 518L

Removal Drill Size

N/A 0.406

Drill Depth ±.010

N/A 0.1875