Model: 1644

Gate Valve

Special Features:

0.250 in. Pipe size; r.H. Thd; 18 thds per inch

Properties:

Bonnet Type
Inside screw
Bonnet Attachment Method
U-bolt
Valve Operation Method
Manual
Connection Type
Threaded internal pipe
Features Provided
Bonnet packing
Maximum Operating Pressure And Media For Which Designed
150.0 pounds per square inch steam and 225.0 pounds per square inch water-oil-gas
Thread Size
0.250 inches
Stem Type
Rising
Material
Iron body
Material
Iron disk
Material
Iron seat
Material
Steel stem
Material Specification
Astm a126-61t, cl b assn standard single material response body
Material Specification
Astm a126-61t, cl b assn standard single material response disk
Material Specification
Astm a126-61t, cl b assn standard single material response seat
Thread Series Designator
Npt
NSN
4820-00-076-8614
Part Number
1644
Description
Valve,gate
CAGE
37239

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 1644 NSN 4820-00-076-8614

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:
ESD:
MMAC:
CRITL:
X

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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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