Model: 429-3/81/2-6

Check Valve

Special Features:

Weapon system essential

Properties:

Thread Direction
Right-hand all ends
Flow Control Device
Poppet
Maximum Operating Temp
200.0 degrees fahrenheit single response
End Application
Spruance class dd (963), forrestal class cv, mars class t-afs 1, virginia class cgn (41), oliver perry class ffg. High pressure air compressors.
Connection Style
Plain, optional end (pipe) all ends
Valve Operation Method
Automatic
Connection Type
Threaded internal pipe all ends
Mounting Position
Horizontal or vertical
Maximum Operating Pressure
10000.0 pounds per square inch single response
Thread Size
0.375 inches all ends
Criticality Code Justification
Feat
Opening Pressure Setting
6.0 pounds per square inch
Material
Rubber synthetic seat
Material
Steel comp 316 body
Material
Steel comp 316 flow control device
Material Specification
Aisi 316 assn standard single material response body
Style Designator
Straight thru
Thread Series Designator
Npt all ends
NSN
4820-01-069-3171
Part Number
429-3/81/2-6
Description
Valve,check
CAGE
86768

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 429-3/81/2-6 NSN 4820-01-069-3171

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:
Y

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:
O
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
E
LVL_B:

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
051080
UFC:
29300
LTL:
RATING VARIABLE
LCL:
--
WCC:
576
TCC:
Z
SHC:
9
ACC:
Construction Materials

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Schedule B and Export
  • Schedule B: 8481302090
  • SITC: 74730
  • End Use: Industrial machines, other
  • NAICS: 332911
  • USDA: 1

Freight Class: Check valves of steel

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