Model: 668455-1

Check Valve

Properties:

Thread Class
3a 1st end
Thread Direction
Right-hand 1st end
Flow Control Device
Poppet
Disk Loading Method
Spring
Connection Style
Flared (tube) 1st end
Connection Type
Threaded external tube 1st end
Mounting Position
Horizontal
Thready Qty Per Inch (tpi)
20 1st end
Maximum Operating Pressure
3000.0 pounds per square inch single response
Thread Size
0.438 inches 1st end
Seat Angle
37.0 degrees 1st end
Outside Diameter Tube Accommodated
0.250 inches 1st end
Material
Aluminum alloy 2024 body
Material
Aluminum alloy seat
Media For Which Designed
Hydraulic fluid, phosphate-ester base single response
Surface Treatment
Anodize
Surface Treatment Specification
Mil-a-8625, type 1 military specification single treatment response
Style Designator
Straight thru
Test Data Document
36659-668455 drawing (this is the basic governing drawing, such as a contractor drawing, original equipment manufacturer drawing, etc.; excludes any specification, standard or other document that may be referenced in a basic governing drawing)
Thread Series Designator
Unf 1st end
NSN
4820-00-857-8247
Part Number
668455-1
Description
Valve,check
CAGE
98897

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 668455-1 NSN 4820-00-857-8247

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:
U
ESD:
ESD:
MMAC:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
127220
UFC:
64490
LTL:
77.5
LCL:
--
WCC:
576
TCC:
Z
SHC:
Z
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 check valve (NSN 4820-00-857-8247) 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: 8481309000
  • SITC: 74730
  • End Use: Industrial machines, other
  • NAICS: 332911
  • USDA: 1

Freight Class: Check valves of materials other than copper, iron or steel

Highest Rated Parts
Recently Purchased Parts
Hot Parts