Model: 490

Gate Valve

Properties:

Pipe Size Accommodated
0.750 inches
Bonnet Type
Inside screw
Bonnet Attachment Method
U-bolt
Valve Operation Method
Manual
Features Provided
Bonnet packing
Thready Qty Per Inch (tpi)
14
Maximum Operating Pressure And Media For Which Designed
125.0 pounds per square inch steam and 225.0 pounds per square inch water-oil-gas
Thread Size
0.750 inches
Stem Type
Rising
Material
Copper alloy stem
Material
Copper alloy 836 disk
Material
Copper alloy 836 seat
Material
Iron cast uns f11501 body and iron cast uns f12102 body and iron cast uns f12802 body
Material
Iron cast uns f11501 and iron cast uns f12102 and iron cast uns f12802 body
Material Specification
Astm a126-61t, cl a assn standard single material response body
Material Specification
Qq-c-390, alloy b5 federal specification single material response disk
Material Specification
Qq-c-390, alloy b5 federal specification single material response seat
Thread Series Designator
Npt
Reference Number Differentiating Characteristics
As differentiated by size of end connections
NSN
4820-00-226-0797
Part Number
490
Description
Valve,gate
CAGE
14959

A valve having a flat or tapered disk (gate) which moves transversely to the axis of flow by rotating or sliding movements of the stem to open or close the orifice. It may also contain an oval or rectangular shaped slide which may be manually, motor, or pressure operated through the means of an arm or arm assembly. The body flange may be designed to accommodate tube type connectors. It may or may not contain thermal relief features. Includes valve (gate) specifically designed for the control of fluid systems in aircraft or missiles.

Part 490 NSN 4820-00-226-0797

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
05482
FIIG:
A500A0
Concept No.:
1
App. Key:
Cond. Code:
2
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:
A
ESD:
A
MMAC:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
050855
UFC:
29290
LTL:
RATING VARIABLE
LCL:
70.0
WCC:
736
TCC:
Z
SHC:
9
ACC:
Construction Materials

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Schedule B and Export
  • Schedule B: 8481803010
  • SITC: 74780
  • End Use: Industrial machines, other
  • NAICS: 332919
  • USDA: 1

Freight Class: Gate type taps, cocks and valves of iron, hand operated

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