Model: 497-16B2-20

Check Valve

Properties:

Thread Class
3a 1st end
Thread Class
3b 2nd end
Thread Direction
Right-hand all ends
Flow Control Device
Poppet
Disk Loading Method
Spring
Maximum Operating Temp
200.0 degrees fahrenheit single response
Connection Style
External seat for gasket seal (boss) 1st end
Connection Style
Gasket seal (boss) 2nd end
Valve Operation Method
Automatic
Connection Type
Threaded external boss 1st end
Connection Type
Threaded internal boss 2nd end
Mounting Position
Horizontal or vertical
Thready Qty Per Inch (tpi)
12 all ends
Maximum Operating Pressure
3000.0 pounds per square inch single response
Thread Size
1.312 inches all ends
Seat Angle
37.0 degrees 1st end
Material
Copper alloy seat
Material
Copper alloy body
Material
Steel comp 304 flow control device and steel comp 303 flow control device and rubber butadiene-acrylonitrile class nbr flow control device
Material Specification
Fed standard 66, aisi 304/sae 30304 federal standard 1st material response flow control device and federal standard 66, aisi 303/sae 30303 federal standard 2nd material response flow control device
Media For Which Designed
Air 1st response
Media For Which Designed
Fuel/oil, hydrocarbon 2nd response
Style Designator
Straight thru
Thread Series Designator
Un all ends
NSN
4820-00-470-0509
Part Number
497-16B2-20
Description
Valve,check
CAGE
86768

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 497-16B2-20 NSN 4820-00-470-0509

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:
U
ESD:
ESD:
MMAC:
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.2000lbs
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:
051080
UFC:
29300
LTL:
RATING VARIABLE
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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