Model: 253T(P)-2PP

Check Valve

Properties:

Thread Direction
Right-hand all ends
Disk Loading Method
Spring
Maximum Operating Temp
149.0 degrees celsius single response
Minimum Operating Temp
-40.0 degrees celsius
End Application
Aircraft, hercules c-130
Connection Style
Plain, optional end (pipe) all ends
Valve Operation Method
Automatic
Connection Type
Threaded internal pipe all ends
Mounting Position
Horizontal or vertical
Maximum Operating Pressure
3000.0 pounds per square inch single response
Thread Size
0.250 inches all ends
Material
Steel comp 303 body
Media For Which Designed
Refrigerant 12 3rd response
Media For Which Designed
Refrigerant 22 4th response
Media For Which Designed
Acetylene 2nd response
Media For Which Designed
Oxygen, gaseous single response
Media For Which Designed
Oxygen, gaseous 1st response
Surface Treatment
Passivate
Surface Treatment Specification
Qq-p-35 federal specification single treatment response
Style Designator
Straight thru
Thread Series Designator
Nptf all ends
NSN
4820-01-419-2607
Part Number
253T(P)-2PP
Description
Valve,check
CAGE
91816

A valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design.

Part 253T(P)-2PP NSN 4820-01-419-2607

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
05487
FIIG:
A530B0
Concept No.:
1
App. Key:
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:
N
PMIC:
A
ESD:
ESD:
MMAC:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
051080
UFC:
29300
LTL:
RATING VARIABLE
LCL:
--
WCC:
594
TCC:
Z
SHC:
9
ACC:
Trailers/Vehicles

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Schedule B and Export
  • Schedule B: 8481302090
  • SITC: 74730
  • End Use: Industrial machines, other
  • NAICS: 332911
  • USDA: 1

Freight Class: Check valves of steel

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