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MATERIAL: A286 Cres per AMS 5732 or AMS 5737, heat treated to develop properties commensurate with nut performance requirements herein.

FINISH: Cadmium plated per AMS-QQ-P-416, type and class optional if lubricated nuts meet salt spray requirement of AMS-QQ-P-416, type II, + solid film lubricant.

LUBRICATION: Solid film lubricant per MIL-PRF-46010, type I, or AS 5272, type I. Lubricant shall meet the requirements of BPS-N-70.

PERFORMANCE: BPS-N-70, class 80TC4, except tensile strength as tabulated and self-locking torque restricted to 5 reusability cycles on a cross drilled bolt or stud. Control method according to BACN11N.

THREADS: Per AS-8879, prior to lubrication.

MARKING: Parts marked with manufacturer's symbol «SD» and «CD» for cadmium plated plus solid film lubricant + white paint (ex:THCR 54 CD-BACN) or «CS» for passivated plus solid film lubricant (ex:THCR 54 CS-BACN).

Contact Howmet for the diameter/type in manufacturing.
Unit of Measure

A - MAX

 0.325 Inch

B - MIN

 0.291 Inch

C - MIN

 0.277 Inch

D - MAX

 0.220 Inch

F ±.016

 0.094 Inch

G - MAX

 0.065 Inch

G - MIN

 0.050 Inch

H ±.015

 0.188 Inch

R - MAX

 0.039 Inch

R - MIN

 0.026 Inch

V - REF

 0.020 Inch

W - MAX

 0.252 Inch

W - MIN

 0.243 Inch

Minimum Tensile Strength

 1230 lb

Approx. Weight

 0.150 lb/100

Thread Type

 Unified

Configuration 1

 Castellated Hex

Lock

 Crimp Lock

Simplified Material

 CRES

Strength

 80KSI - 550Mpa

Temperature

 450°F - 235°C

Specific Material

 A286 CRES per AMS 5732 or AMS 5737, heat treated to develop properties commensurate with nut performance requirements herein

Thread

 0.1900-32 UNJF-3B

Part Family

 THCR 5xx xx