Model: 3257

Hydraulic Brak Cylinder Assembly

Properties:

Body Material
Steel
Mounting Provision
Threaded mounting holes
Overall Height
2.125 inches
Overall Width
3.562 inches
Bore Diameter
1.490 inches
Body Outside Diameter
2.020 inches
Mounting Facility Thread Class
2a
Mounting Facility Thread Direction
Right-hand
Compressed Length
6.000 inches
Bore Type
Straight
Extended Length
7.750 inches
Mounting Provision Arrangement Style
Two hole
Mounting Facility Thread Series Designator
Unc
Mounting Facility Thread Diameter
0.312 inches
Mounting Facility Thready Qty Per Inch (tpi)
18
Design Characteristics
Single acting single cylinder
First Piston Rod End Style
Slot type all working ends
Piston Rod End Similarity
Identical
First End Fork Width
0.500 inches all working ends
First End Fork Depth
0.344 inches all working ends
First End Fork Span Width
0.281 inches all working ends
Mounting Facility Thread Length
0.750 inches
Center To Center Distance Between Mounting Provisions
2.000 inches
Port Location And Quantity
2 center section
Port Style
Gasket seal 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
2530-00-678-5122
Part Number
3257
Description
Cylinder Assembly,hydraulic Brak
CAGE
14894

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 3257 NSN 2530-00-678-5122

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:
2.0000lbs
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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