Model: H374

Check Valve

Properties:

Thread Class
3a all ends
Thread Direction
Right-hand all ends
Flow Control Device
Poppet
Maximum Operating Temp
160.0 degrees fahrenheit single response
Minimum Operating Temp
-65.0 degrees fahrenheit
Connection Style
External seat for gasket seal (boss) 1st end
Connection Style
External seat for gasket seal (boss) 2nd end
Valve Operation Method
Automatic
Connection Type
Threaded external boss all ends
Mounting Position
Horizontal or vertical
Maximum Operating Pressure
4000.0 pounds per square inch single response
Thread Size
0.375 inches all ends
Seat Angle
37.0 degrees 1st end
Material
Steel comp 303 body
Material
Steel comp 303 seat
Material
Steel comp 630 flow control device
Material Specification
Ams 5643 assn standard single material response flow control device
Material Specification
Mil-s-853, ty a military specification single material response body
Material Specification
Mil-s-853, ty a military specification single material response seat
Style Designator
Straight thru
Thread Series Designator
Unjf all ends
NSN
4820-00-127-8688
Part Number
H374
Description
Valve,check
CAGE
06239

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 H374 NSN 4820-00-127-8688

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:
HS
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.1000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
M
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
Q
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
127220
UFC:
64490
LTL:
77.5
LCL:
--
WCC:
594
TCC:
Z
SHC:
Z
ACC:
Equipment for Aircraft

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Schedule B and Export
  • Schedule B: 8481302090
  • SITC: 74730
  • End Use: Industrial machines, other
  • NAICS: 332911
  • USDA: 1

Freight Class: Check valves of steel

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