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.:

App. Key:

Cond. Code:

Status:

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators

HMIC

PMIC

ESD/EMI

ENAC

MMAC

CRITL

HMIC:

PMIC:

ESD:

MMAC:

CRITL:

Freight Classification

NMFC

UFC

LTL

LCL

WCC

TCC

SHC

ACC

NMFC:

127220

UFC:

64490

LTL:

77.5

LCL:

50.0

WCC:

594

TCC:

SHC:

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