Model: K021557

Air Pressure Relay Valve

Special Features:

Mounting studs: 2 each thread 3/8-16, lenght: 0.94 inches, control port: 1/4 inch npt, balance port: 1/4 inch npt.

Properties:

Body Style
Multiple cionnection
First End Connection Type
Threaded internal pipe
End Application
2355-01-559-0791, mine resistant vehicle
Part Name Assigned By Controlling Agency
Spring brake modulating valve
NSN
2530-01-628-5056
Part Number
K021557
Description
Valve,relay,air Pressure
CAGE
06853

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 K021557 NSN 2530-01-628-5056

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:
A
ESD:
ESD:
MMAC:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
127220
UFC:
64490
LTL:
77.5
LCL:
--
WCC:
885
TCC:
Z
SHC:
9
ACC:
Trailers/Vehicles

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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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