Model: 2249B4MM

Check Valve

Properties:

Thread Direction
Right-hand 1st end
Flow Control Device
Poppet
Disk Loading Method
Spring
Maximum Operating Temp
250.0 degrees fahrenheit single response
Connection Style
Plain (pipe) 1st end
Valve Operation Method
Automatic
Connection Type
Threaded external pipe 1st end
Connection Type
Threaded external pipe 2nd end
Mounting Position
Horizontal or vertical
Thready Qty Per Inch (tpi)
14 1st end
Maximum Operating Pressure
250.0 pounds per square inch single response
Thread Size
0.500 inches 1st end
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, petroleum base 3rd response
Media For Which Designed
Hydrogen 4th response
Style Designator
Straight thru
Thread Series Designator
Npt 1st end
NSN
4820-00-409-8776
Part Number
2249B4MM
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 2249B4MM NSN 4820-00-409-8776

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:
SX
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.4000lbs
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:
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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