Model: 172-638

Hydraulic Brak Cylinder Assembly

Properties:

Body Material
Iron, cast
Mounting Provision
Threaded mounting holes
Overall Height
1.655 inches
Overall Width
2.375 inches
Bore Diameter
0.875 inches
Body Outside Diameter
1.260 inches
Seat Angle In Deg
42.0 single port
Mounting Facility Thread Class
2b
Mounting Facility Thread Direction
Right-hand
Bore Type
Straight
Mounting Provision Arrangement Style
Two hole
Mounting Position
Left
Features Provided
Bleeder valves and rubber boot
Mounting Facility Thread Series Designator
Unc
Mounting Facility Thread Diameter
0.313 inches
Mounting Facility Thready Qty Per Inch (tpi)
18
Design Characteristics
Single acting single cylinder
Mounting Type And Location
Flange center section
Mounting Facility Thread Length
0.400 inches
Center To Center Distance Between Mounting Provisions
1.624 inches
Port Location And Quantity
1 center section
Port Style
Inverted flare single port
Port Thread Series Designator
Unf single port
Port Thread Diameter
0.375 inches single port
Port Thready Qty Per Inch (tpi)
24 single port
Port Thread Class
2b single port
Bleeding Feature Quantity
1
NSN
2530-00-589-8605
Part Number
172-638
Description
Cylinder Assembly,hydraulic Brak
CAGE
16758

A device consisting of a cylinder, hydraulic brake, wheel with a piston(s) and other component parts which is mounted to the back plate of a wheel. It uses the flow and pressure of a fluid to create the linear motion required to operate the brake shoes of a hydraulic brake system.

Part 172-638 NSN 2530-00-589-8605

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
10862
FIIG:
A34200
Concept No.:
App. Key:
J
Cond. Code:
2
Status:
A

Material Classification

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

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
1.1000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
M
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
Q
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
133300
UFC:
63220
LTL:
RATING VARIABLE
LCL:
--
WCC:
885
TCC:
Z
SHC:
9
ACC:
Trailers/Vehicles

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Schedule B and Export
  • Schedule B: 8708300050
  • SITC: 78433
  • End Use: Other parts and accessories of vehicles
  • NAICS: 336340
  • USDA: 1

Freight Class: Brakes and servo-brakes and parts, of motor vehicles of headings 8701 to 8705

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