Model: 559A-4DB-14

Safety Relief Valve

Properties:

Thread Class
3a 1st end
Thread Class
3b 2nd end
Thread Direction
Right-hand all ends
Flow Control Device
Disk
Maximum Operating Temp
250.0 degrees fahrenheit single response
Connection Style
Flar (tube) 2nd end
Connection Style
Plain (tube) 1st end
Valve Operation Method
Automatic
Connection Type
Threaded external tube 1st end
Connection Type
Threaded internal tube 2nd end
Thready Qty Per Inch (tpi)
18 all ends
Thread Size
0.438 inches all ends
Opening Pressure Setting
14.0 pounds per square inch
Outside Diameter Tube Accommodated
0.250 inches 2nd end
Material
Aluminum alloy 2024 body
Material Specification
Qq-a-25/6 federal specification single material response body
Media For Which Designed
Hydrogen 4th response
Media For Which Designed
Refrigerant 12 3rd response
Media For Which Designed
Acetylene 2nd response
Media For Which Designed
Air 1st response
Surface Treatment
Anodize
Surface Treatment Specification
Mil-a-8625 military specification single treatment response
Style Designator
Straight through note: to be used for valve bodies of one section only.
Thread Series Designator
Uns all ends
NSN
4820-01-222-7812
Part Number
559A-4DB-14
Description
Valve,safety Relief
CAGE
91816

A valve designed to automatically release excessive pressures. It is actuated by static pressure upstream of the valve and is used as a safety valve or relief valve, and may be set to close at a predetermined pressure. It is not designed for regulation of continuously fluctuating loads. It may be inline or cartridge (manifold) design. Excludes valve (1), relief, pressure and temperature.

Part 559A-4DB-14 NSN 4820-01-222-7812

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
05488
FIIG:
A046B0
Concept No.:
1
App. Key:
AP
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:
0.1000lbs
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:
127220
UFC:
64490
LTL:
77.5
LCL:
--
WCC:
576
TCC:
Z
SHC:
9
ACC:
Construction Materials

Pricing & Availability Check

Submit this form for stock availability and pricing.
Part Number:
Quantity:
Email Address:
Phone Number:
Your Name:
Company:



Privacy Policy    Terms & Conditions

How to Order  

Ordering from buyaircraftparts.com

If you would like to order this safety relief valve (NSN 4820-01-222-7812) please submit the pricing and availability form above to receive an up to date quote by email. If you agree to the pricing and terms you can e-sign your order online!

We are pleased to have the opportunity to serve you.

Have a Question

Hours: 08:00-18:00 Eastern Standard Time
Phone: +1 470-231-0824
Email: Contact Form »
Schedule B and Export
  • Schedule B: 8481400000
  • SITC: 74740
  • End Use: Industrial machines, other
  • NAICS: 332911
  • USDA: 1

Freight Class: Safety or relief valves

Highest Rated Parts
Recently Purchased Parts
Hot Parts