Model: 81581R1

Hydraulic Brake Cylinder Cup

Properties:

Tapered Hole Minor Diameter
0.295 inches
Overall Length
Between 0.312 inches and 0.342 inches
Base Thickness
Between 0.089 inches and 0.099 inches
Tapered Hole Major Diameter
Between 0.395 inches and 0.410 inches
Angle In Deg
10.0
Thru-hole Length
Between 0.312 inches and 0.342 inches
Base Outside Diameter
Between 1.363 inches and 1.383 inches
Largest Outside Diameter
Between 1.468 inches and 1.478 inches
Size Designator
1-3/8
Mounting Method
Center hole
Cup Protector
Not included
Base Inside Projection
Not included
Feathered Lip Feature
Included
Outer Periphery Base Groove
Not included
Sealing Lip Length
Between 0.193 inches and 0.213 inches
Material
Rubber, synthetic, es0525, bendix products div, bendix aviation corp
Material
Rubber, synthetic, es0525, bendix products div, bendix aviation corp
NSN
2530-00-273-9281
Part Number
81581R1
Description
Cup,hydraulic Brake Cylinder
CAGE
31007

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 81581R1 NSN 2530-00-273-9281

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:
0.1000lbs
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:
133300
UFC:
63220
LTL:
RATING VARIABLE
LCL:
--
WCC:
586
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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