Model: 311826-1

Check Valve

Special Features:

Proof pressure 350.0 psi, burst pressure 700.0 psi, cracking pressure 1.0 psi, pressure drop 2.5 psi max

Properties:

Thread Class
3b all ends
Thread Direction
Right-hand all ends
Flow Control Device
Disk
Disk Loading Method
Weight
Maximum Operating Temp
250.0 degrees fahrenheit single response
Connection Style
Flare (tube) all ends
Valve Operation Method
Automatic
Connection Type
Threaded internal tube all ends
Mounting Position
Horizontal or vertical
Maximum Operating Pressure
175.0 pounds per square inch single response
Thread Size
0.562 inches all ends
Seat Angle
60.0 degrees 1st end
Outside Diameter Tube Accommodated
0.375 inches all ends
Material
Aluminum alloy body
Material
Aluminum alloy seat
Material
Rubber synthetic flow control device
Media For Which Designed
Air 1st response
Media For Which Designed
Hydraulic fluid, petroleum base 2nd response
Surface Treatment
Anodize
Style Designator
Straight thru
Thread Series Designator
Unf all ends
NSN
4820-00-529-3155
Part Number
311826-1
Description
Valve,check
CAGE
81982

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 311826-1 NSN 4820-00-529-3155

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:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.3000lbs
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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