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

FINISH:
  • PHCR 54CD - Cadmium plate per AMS-QQ-P-416, type and class optional if lubricated nuts meet salt spray requirements of AMS-QQ-P-416, type II, + solid film lubricant.
  • PHCR 54CS - Passivated per AMS 2700, type II or type Vlil, + 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 125TC4, except tensile strength as tabulated and self-locking torque restricted to 5 reusability cycies 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:PHCR 54 CD-BACN) or «CS» for passivated plus solid film lubricant (ex:PHCR 54 CS-BACN).

Contact Howmet for the diameter/type in manufacturing
Nut, Self Locking, Castellated, Hex High Height, 125 KSI, 450°F
Unit of Measure
1 

Item #

A - MAX

B - MIN

C - MIN

D - MAX

F ±.016

G - MAX

Thread

Part Family

PHCR 53 CD BACN N/A 0.325 Inch N/A 0.291 Inch N/A 0.277 Inch N/A 0.277 Inch N/A 0.109 Inch N/A 0.065 Inch N/A 0.1900-32 UNJF-3B N/A PHCR 5xx xx
PHCR 54 CD BACN N/A 0.420 Inch N/A 0.386 Inch N/A 0.348 Inch N/A 0.348 Inch N/A 0.125 Inch N/A 0.100 Inch N/A 0.2500-28 UNJF-3B N/A PHCR 5xx xx
PHCR 55 CD BACN N/A 0.520 Inch N/A 0.482 Inch N/A 0.419 Inch N/A 0.419 Inch N/A 0.172 Inch N/A 0.100 Inch N/A 0.3125-24 UNJF-3B N/A PHCR 5xx xx
PHCR 56 CD BACN N/A 0.579 Inch N/A 0.539 Inch N/A 0.480 Inch N/A 0.480 Inch N/A 0.219 Inch N/A 0.155 Inch N/A 0.3750-24 UNJF-3B N/A PHCR 5xx xx
PHCR 57 CD BACN N/A 0.645 Inch N/A 0.600 Inch N/A 0.552 Inch N/A 0.552 Inch N/A 0.266 Inch N/A 0.155 Inch N/A 0.4375-20 UNJF-3B N/A PHCR 5xx xx
PHCR 58 CD BACN N/A 0.770 Inch N/A 0.725 Inch N/A 0.623 Inch N/A 0.623 Inch N/A 0.359 Inch N/A 0.155 Inch N/A 0.5000-20 UNJF-3B N/A PHCR 5xx xx
PHCR 59 CD BACN N/A 0.850 Inch N/A 0.815 Inch N/A 0.765 Inch N/A 0.765 Inch N/A 0.391 Inch N/A 0.186 Inch N/A 0.5625-18 UNJF-3B N/A PHCR 5xx xx
PHCR 510 CD BACN N/A 0.910 Inch N/A 0.875 Inch N/A 0.836 Inch N/A 0.836 Inch N/A 0.469 Inch N/A 0.186 Inch N/A 0.6250-18 UNJF-3B N/A PHCR 5xx xx
PHCR 512 CD BACN N/A 1.130 Inch N/A 1.095 Inch N/A 0.978 Inch N/A 0.978 Inch N/A 0.563 Inch N/A 0.186 Inch N/A 0.7500-16 UNJF-3B N/A PHCR 5xx xx
PHCR 514 CD BACN N/A 1.345 Inch N/A 1.300 Inch N/A 1.121 Inch N/A 1.121 Inch N/A 0.656 Inch N/A 0.186 Inch N/A 0.8750-14 UNJF-3B N/A PHCR 5xx xx
PHCR 516 CD BACN N/A 1.545 Inch N/A 1.500 Inch N/A 1.263 Inch N/A 1.263 Inch N/A 0.750 Inch N/A 0.186 Inch N/A 1.0000-12 UNJF-3B N/A PHCR 5xx xx
PHCR 518 CD BACN N/A 1.745 Inch N/A 1.700 Inch N/A 1.414 Inch N/A 1.414 Inch N/A 0.813 Inch N/A 0.186 Inch N/A 1.1250-12 UNJF-3B N/A PHCR 5xx xx
PHCR 520 CD BACN N/A 1.915 Inch N/A 1.875 Inch N/A 1.556 Inch N/A 1.556 Inch N/A 0.875 Inch N/A 0.186 Inch N/A 1.2500-12 UNJF-3B N/A PHCR 5xx xx
PHCR 53 CS BACN N/A 0.325 Inch N/A 0.291 Inch N/A 0.277 Inch N/A 0.277 Inch N/A 0.109 Inch N/A 0.065 Inch N/A 0.1900-32 UNJF-3B N/A PHCR 5xx xx
PHCR 54 CS BACN N/A 0.420 Inch N/A 0.386 Inch N/A 0.348 Inch N/A 0.348 Inch N/A 0.125 Inch N/A 0.100 Inch N/A 0.2500-28 UNJF-3B N/A PHCR 5xx xx
PHCR 55 CS BACN N/A 0.520 Inch N/A 0.482 Inch N/A 0.419 Inch N/A 0.419 Inch N/A 0.172 Inch N/A 0.100 Inch N/A 0.3125-24 UNJF-3B N/A PHCR 5xx xx
PHCR 56 CS BACN N/A 0.579 Inch N/A 0.539 Inch N/A 0.480 Inch N/A 0.480 Inch N/A 0.219 Inch N/A 0.155 Inch N/A 0.3750-24 UNJF-3B N/A PHCR 5xx xx
PHCR 57 CS BACN N/A 0.645 Inch N/A 0.600 Inch N/A 0.552 Inch N/A 0.552 Inch N/A 0.266 Inch N/A 0.155 Inch N/A 0.4375-20 UNJF-3B N/A PHCR 5xx xx
PHCR 58 CS BACN N/A 0.770 Inch N/A 0.725 Inch N/A 0.623 Inch N/A 0.623 Inch N/A 0.359 Inch N/A 0.155 Inch N/A 0.5000-20 UNJF-3B N/A PHCR 5xx xx
PHCR 59 CS BACN N/A 0.850 Inch N/A 0.815 Inch N/A 0.765 Inch N/A 0.765 Inch N/A 0.391 Inch N/A 0.186 Inch N/A 0.5625-18 UNJF-3B N/A PHCR 5xx xx
PHCR 510 CS BACN N/A 0.910 Inch N/A 0.875 Inch N/A 0.836 Inch N/A 0.836 Inch N/A 0.469 Inch N/A 0.186 Inch N/A 0.6250-18 UNJF-3B N/A PHCR 5xx xx
PHCR 512 CS BACN N/A 1.130 Inch N/A 1.095 Inch N/A 0.978 Inch N/A 0.978 Inch N/A 0.563 Inch N/A 0.186 Inch N/A 0.7500-16 UNJF-3B N/A PHCR 5xx xx
PHCR 514 CS BACN N/A 1.345 Inch N/A 1.300 Inch N/A 1.121 Inch N/A 1.121 Inch N/A 0.656 Inch N/A 0.186 Inch N/A 0.8750-14 UNJF-3B N/A PHCR 5xx xx
PHCR 516 CS BACN N/A 1.545 Inch N/A 1.500 Inch N/A 1.263 Inch N/A 1.263 Inch N/A 0.750 Inch N/A 0.186 Inch N/A 1.0000-12 UNJF-3B N/A PHCR 5xx xx
PHCR 518 CS BACN N/A 1.745 Inch N/A 1.700 Inch N/A 1.414 Inch N/A 1.414 Inch N/A 0.813 Inch N/A 0.186 Inch N/A 1.1250-12 UNJF-3B N/A PHCR 5xx xx
PHCR 520 CS BACN N/A 1.915 Inch N/A 1.875 Inch N/A 1.556 Inch N/A 1.556 Inch N/A 0.875 Inch N/A 0.186 Inch N/A 1.2500-12 UNJF-3B N/A PHCR 5xx xx
Unit of Measure
1