Model: R21121

Hydraulic Brake Cylinder Cup

Properties:

Overall Length
0.381 inches
Mounting Hole Diameter
Between 0.558 inches and 0.568 inches
Base Thickness
Between 0.115 inches and 0.125 inches
Thru-hole Length
Between 0.115 inches and 0.125 inches
Base Outside Diameter
Between 0.930 inches and 0.940 inches
Largest Outside Diameter
Between 1.041 inches and 1.061 inches
Size Designator
1 in.
Mounting Method
Center hole
Cup Protector
Not included
Base Inside Projection
Not included
Feathered Lip Feature
Not included
Outer Periphery Base Groove
Not included
Sealing Lip Length
Between 0.177 inches and 0.187 inches
Material
Rubber, synthetic
Material
Rubber synthetic
NSN
2530-00-741-7991
Part Number
R21121
Description
Cup,hydraulic Brake Cylinder
CAGE
83120

A circular-shaped item of molded synthetic or natural rubber designed specifically to seal fluid pressure and prevent leakage within the cylinders of a vehicular hydraulic brake system. It is a component of cylinder assembly, hydraulic brake, master or cylinder assembly, hydraulic brake, wheel. Excludes cup, compression.

Part R21121 NSN 2530-00-741-7991

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
11359
FIIG:
T129-N
Concept No.:
App. Key:
NA
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:
0.6000lbs
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:
018400
UFC:
08480
LTL:
70.0
LCL:
--
WCC:
585
TCC:
Z
SHC:
9
ACC:
Trailers/Vehicles

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Phone: +1 470-231-0824
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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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