Model: 2540-1-1

Check Valve

Properties:

Thread Class
3a all ends
Thread Direction
Right-hand all ends
Flow Control Device
Disk
Disk Loading Method
Weight
Maximum Operating Temp
165.0 degrees fahrenheit single response
Connection Style
Flared (tube) all ends
Valve Operation Method
Automatic
Connection Type
Threaded external tube all ends
Mounting Position
Horizontal or vertical
Maximum Operating Pressure
350.0 pounds per square inch single response
Thread Size
0.750 inches all ends
Seat Angle
37.0 degrees 1st end
Outside Diameter Tube Accommodated
0.500 inches 1st end
Material
Steel comp 303 flow control device
Material
Stainless steel body
Material
Stainless steel seat
Material Specification
Fed-std-66 federal standard single material response flow control device
Media For Which Designed
Water, fresh 2nd response
Media For Which Designed
Fuel/oil, hydrocarbon 1st response
Style Designator
Straight thru
Thread Series Designator
Unf all ends
NSN
4820-00-869-5174
Part Number
2540-1-1
Description
Valve,check
CAGE
81833

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 2540-1-1 NSN 4820-00-869-5174

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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