Model: 11-2750-77

Check Valve

Special Features:

2 inlet ports w/swing check subassy, wrenching hex 1.875 in. Across flats; all ports at right angles to each other

Properties:

Thread Class
3b 1st end
Flow Control Device
Disk
Disk Loading Method
Spring
Maximum Operating Temp
160.0 degrees fahrenheit single response
Connection Style
Gasket seal (boss) 1st end
Valve Operation Method
Automatic
Connection Type
Threaded internal boss 1st end
Thready Qty Per Inch (tpi)
12 1st end
Maximum Operating Pressure
800.0 pounds per square inch single response
Thread Size
1.3125 inches 1st end
Material
Aluminum alloy
Media For Which Designed
Fuel/oil, hydrocarbon single response
Surface Treatment
Anodize
Thread Series Designator
Unj 1st end
NSN
4820-00-037-4748
Part Number
11-2750-77
Description
Valve,check
CAGE
45681

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 11-2750-77 NSN 4820-00-037-4748

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:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
127220
UFC:
64490
LTL:
77.5
LCL:
50.0
WCC:
594
TCC:
Z
SHC:
Z
ACC:
Equipment for Aircraft

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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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