Model: 3657-20

Tube Coupling Nut Assembly

Properties:

Thread Class
3b
Thread Direction
Right-hand
Overall Length
0.832 inches
Outside Diameter
1.770 inches
Thread Size
1-11/16-18
Tube Outside Diameter For Which Designed
1.250 inches
Screw Thread Series Designator
Unef
Working Pressure And Service Type
125.0 pounds per square inch jet fuel
Material
Aluminum alloy, qq-a-225/6, alloy 2024, t4
Material
Aluminum alloy 2024
Surface Treatment
Anodize
Style Designator
Nut assembly
Surface Treatment
Anodized, mil-a-8625
NSN
4730-00-630-7087
Part Number
3657-20
Description
Nut Assembly,tube Coupling
CAGE
79326

Part 3657-20 NSN 4730-00-630-7087

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
32836
FIIG:
T385-V
Concept No.:
App. Key:
VC
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:
SX
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.2000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
Q
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
013540
UFC:
05680
LTL:
70.0
LCL:
--
WCC:
576
TCC:
Z
SHC:
9
ACC:
Construction Materials

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