Model: 593-4D1

Check Valve

Properties:

Thread Class
3b all ends
Thread Direction
Right-hand all ends
Flow Control Device
Disk
Maximum Operating Temp
165.0 degrees fahrenheit single response
Connection Style
Gasket seal (boss) all ends
Valve Operation Method
Automatic
Connection Type
Threaded internal boss all ends
Mounting Position
Horizontal or vertical
Thready Qty Per Inch (tpi)
20 1st end
Maximum Operating Pressure
350.0 pounds per square inch single response
Thread Size
0.438 inches all ends
Outside Diameter Tube Accommodated
0.250 inches 1st end
Material
Aluminum alloy 2014 body or aluminum alloy 2017 body or aluminum alloy 2024 body
Material
Aluminum alloy 2014 seat or aluminum alloy 2017 seat or aluminum alloy 2024 seat
Material
Rubber butadiene-acrylonitrile class nbr flow control device
Material Specification
Qq-a-225/4, alloy 2014, t4 federal specification 1st material response body or qq-a-225/5, alloy 2017, t4 federal specification 2nd material response body or qq-a-a225/6, alloy 2024, t4 federal specification 3rd material response body
Material Specification
Qq-a-225/5, alloy 2017, t4 federal specification 1st material response seat or qq-a-225/6, alloy 2024, t4 federal specification 3rd material response seat
Media For Which Designed
Fuel/oil, hydrocarbon single response
Surface Treatment
Anodize
Surface Treatment Specification
Mil-a-8625, type 2 military specification single treatment response
Style Designator
Straight thru
Thread Series Designator
Unjf all ends
NSN
4820-00-287-2862
Part Number
593-4D1
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 593-4D1 NSN 4820-00-287-2862

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:
SX
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: 8481309000
  • SITC: 74730
  • End Use: Industrial machines, other
  • NAICS: 332911
  • USDA: 1

Freight Class: Check valves of materials other than copper, iron or steel

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