Model: 4X997

Check Valve

Special Features:

Weapon system essential

Properties:

Thread Class
3a 2nd end
Thread Direction
Right-hand all ends
Flow Control Device
Disk
Maximum Operating Temp
450.0 degrees fahrenheit single response
End Application
F-4 aircraft support equipment.
Connection Style
Plain (pipe) 1st end
Connection Style
Plain (tube) 2nd end
Valve Operation Method
Automatic
Connection Type
Threaded external pipe 1st end
Connection Type
Threaded external tube 2nd end
Mounting Position
Horizontal
Thready Qty Per Inch (tpi)
16 2nd end
Maximum Operating Pressure
250.0 pounds per square inch single response
Thread Size
0.375 inches 1st end
Thread Size
0.750 inches 2nd end
Criticality Code Justification
Feat
Material
Copper alloy body
Media For Which Designed
Air single response
Style Designator
Straight thru
Thread Series Designator
Npt 1st end
Thread Series Designator
Unj 2nd end
NSN
4820-01-099-9567
Part Number
4X997
Description
Valve,check
CAGE
25795

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 4X997 NSN 4820-01-099-9567

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:
Y

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:
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:
127220
UFC:
64490
LTL:
77.5
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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