Model: 2624A-4TT

Check Valve

Special Features:

Cleaned for aviators breathing oxygen

Properties:

Thread Class
3a all ends
Thread Direction
Right-hand all ends
Maximum Operating Temp
165.0 degrees fahrenheit single response
Minimum Operating Temp
-65.0 degrees fahrenheit
Connection Style
Flared (tube) all ends
Valve Operation Method
Automatic
Connection Type
Threaded external tube all ends
Mounting Position
Horizontal or vertical
Thread Size
0.437 inches all ends
Seat Angle
37.0 degrees all ends
Opening Pressure Setting
2.0 pounds per square inch
Part Name Assigned By Controlling Agency
Safety check valve
Material
Aluminum body
Material Specification
Qq-a-225/6 federal specification single material response body
Media For Which Designed
Oxygen, gaseous single response
Surface Treatment
Anodize
Style Designator
Straight thru
Thread Series Designator
Unf all ends
NSN
4820-01-453-2594
Part Number
2624A-4TT
Description
Valve,check
CAGE
91816

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 2624A-4TT NSN 4820-01-453-2594

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

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:
M
SPI No.:
SPI Rev.:
SPC Mkg:
24
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:
594
TCC:
Z
SHC:
9
ACC:
Trailers/Vehicles

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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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