Model: 2259B1MM

Check Valve

Special Features:

cracking pressure 1 psi

Properties:

Pipe Size Accommodated
0.125 inches all ends
Thread Direction
Right-hand all ends
Flow Control Device
Poppet
Disk Loading Method
Spring
Maximum Operating Temp
250.0 degrees fahrenheit single response
Connection Style
Plain (pipe) all ends
Valve Operation Method
Automatic
Connection Type
Threaded external pipe all ends
Mounting Position
Horizontal or vertical
Maximum Operating Pressure
250.0 pounds per square inch single response
Thread Size
0.125 inches all ends
Material
Copper alloy body
Material
Rubber butadiene-acrylonitrile class nbr seat
Media For Which Designed
Air 1st response
Media For Which Designed
Helium 2nd response
Media For Which Designed
Hydraulic fluid, mineral base 5th response
Media For Which Designed
Hydrogen 3rd response
Media For Which Designed
Nitrogen, gaseous 4th response
Style Designator
Straight thru
Thread Series Designator
Npt all ends
NSN
4820-00-989-2230
Part Number
2259B1MM
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 2259B1MM NSN 4820-00-989-2230

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:
050855
UFC:
29290
LTL:
70.0
LCL:
--
WCC:
576
TCC:
Z
SHC:
9
ACC:
Construction Materials

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Schedule B and Export
  • Schedule B: 8481301090
  • SITC: 74730
  • End Use: Industrial machines, other
  • NAICS: 332911
  • USDA: 1

Freight Class: Check valves of copper having a pressure rating of 850 kpa or over

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