Model: 19E111-1A

Tail Rotor Coupling

Properties:

General Description
Steel, maraging e18a, surface treatment black heresite b-12 coated, rockwell hardness rating c scale 48 to 52, dim., 2.531 in. Nom o/a lg triangular left end flange 3.000 in. Od w/three holes equally spaced and threaded w/0.250-28 floating threads, sides of triangle 1.000 in. Distance from center, 2nd flang 3.500 in. Nom od located 0.580 in. From left end, 1.370 in. Nom body od, 1.310 in. Nom left end id by 0.875 in. Lg w/end rounded by 0.602 in. Radius, right end internal spline data, 35 teeth 1.656 in. Lg, 1.0938 in. Pitch dia, 30.0deg pressure angle, flat root side fit, 1.0625 in. Min, 1.0675 in. Max major dia, three nas1068aa nuts and six ms20605-mp3k2 installed on rear of flange threaded holes
NSN
1615-00-923-0269
Part Number
19E111-1A
Description
Coupling,tail Rotor
CAGE
99551

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
N
PMIC:
A
ESD:
A
ESD:
A
MMAC:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
133300
UFC:
63220
LTL:
RATING VARIABLE
LCL:
RATING VARIABLE
WCC:
671
TCC:
Z
SHC:
9
ACC:
Equipment for Aircraft

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Schedule B and Export
  • Schedule B: 8803100060
  • SITC: 79291
  • End Use: Parts for military-type goods
  • NAICS: 336413
  • USDA: 1

Freight Class: Propellers and rotors and parts thereof, for use in military aircraft

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