Model: 4177-8H

Tube Coupling Inverted Nut

Special Features:

Drilled hex. 3 holes 0.051 in. Min 0.056 in. Max dia

Properties:

Thread Class
3a
Thread Direction
Right-hand
Fabrication Method
Cold drawn or rolled
Casehardening Indicator
Not casehardened
Overall Length
Between 0.650 inches and 0.670 inches
Thread Size
0.750-16
Tube Outside Diameter For Which Designed
0.500 inches
Seat Angle In Deg
33.0
Screw Thread Series Designator
Unjf
Width Across Flats
Between 0.863 inches and 0.887 inches
Strength Rating
66000.0 pounds per square inch proof load
Smallest Inside Diameter
Between 0.505 inches and 0.508 inches
Application/function
U/o h temp, hp pneumatic and hyd sys, fuel sys, and cyrogenic sys
Material
Aluminum alloy, qq-a-225/6, alloy 2024, t851
Material
Aluminum alloy 2024
Material Specification
Qq-a-225/6, alloy 2024, t851 federal specification single material response
Surface Treatment
Anodize
Style Designator
Inverted nut, tube, flare
Surface Treatment
Anodized, mil-a-8625
Specification Data
80205-nas591 professional/industrial association standard
NSN
4730-01-260-8069
Part Number
4177-8H
Description
Inverted Nut,tube Coupling
CAGE
77969

Part 4177-8H NSN 4730-01-260-8069

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
03857
FIIG:
T385-B
Concept No.:
App. Key:
BA
Cond. Code:
1
Status:
A

Material Classification

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

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