Model: 749986-103

Restrictor Check Valve

Properties:

Thread Class
3a 1st end
Thread Direction
Right-hand 1st end
Flow Control Device
Poppet
Disk Loading Method
Spring
Maximum Operating Temp
-65.0 degrees fahrenheit 1st response
Maximum Operating Temp
135.0 degrees fahrenheit 2nd response
Connection Style
Beveled (tube) 2nd end
Connection Style
Flared (tube) 1st end
Valve Operation Method
Automatic
Connection Type
Butt weld tube 2nd end
Connection Type
Threaded external tube 1st end
Mounting Position
Horizontal or vertical
Maximum Operating Pressure
60.0 pounds per square inch single response
Thread Size
0.562 inches 1st end
Seat Angle
37.0 degrees 1st end
Outside Diameter Tube Accommodated
1.000 inches 2nd end
Material
Aluminum alloy body
Material
Aluminum alloy seat
Material
Plastic polyamide flow control device
Material Specification
Qq-a-200/4, comp 5083, temper h111 federal specification single material response seat
Material Specification
Qq-a-200/4, comp 5083, temper h111 federal specification single material response body
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
Unf 1st end
NSN
4820-00-301-0256
Part Number
749986-103
Description
Valve,restrictor Check
CAGE
98897

A valve having an orifice in the poppet, disk, or the like, to permit restricted fluid flow when the valve is seated. It does not have a stem or provisions for pressure adjustments, and is similar to a valve, check with the exception of the orifice which permits fluid flow in more than one direction.

Part 749986-103 NSN 4820-00-301-0256

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
20520
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:
--
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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