Model: S4721950330

Air Pressure Relay Valve

Special Features:

O1st connection is for supply, 2nd connection is for delivery, and 3rd connection is for control; has unthreaded 4th opening (port) for exhaust; operating pressure is 145 psi; use with bayonet style cable connectors

Properties:

Body Style
Multiple cionnection
Media For Which Designed
Air
First End Connection Type
Threaded internal pipe
Second End Relationship With First End
Not identical
Second End Connection Type
Threaded internal pipe
Third End Relationship With Preceding Ends
Identical with second end
End Connection Quantity
3
End Application
Brake group; for trailers produced 4-1-99 or later
First End Thread Series Designator
Nptf
First End Thread Size
0.750 inches
Second End Thread Size
0.375 inches
Second End Thread Series Designator
Nptf
Part Name Assigned By Controlling Agency
Abs relay valve
NSN
2530-01-497-7185
Part Number
S4721950330
Description
Valve,relay,air Pressure
CAGE
78500

A valve specifically designed for installation in an air brake system. It is used on trailers, long wheel base vehicles, as well as multiple rear axle vehicles. It serves to speed and synchronize the application and release of air operated service or parking brakes. It may include emergency features for trailer application.

Part S4721950330 NSN 2530-01-497-7185

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
36296
FIIG:
A07100
Concept No.:
1
App. Key:
AT
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:
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:
--
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:
127220
UFC:
64490
LTL:
77.5
LCL:
77.5
WCC:
885
TCC:
Z
SHC:
9
ACC:
Trailers/Vehicles

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Phone: +1 470-231-0824
Email: Contact Form »
Schedule B and Export
  • Schedule B: 8481809050
  • SITC: 74780
  • End Use: Industrial machines, other
  • NAICS: 332911
  • USDA: 1

Freight Class: Other taps, cocks, valves, etc., nesoi

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