Model: WR47

Spark Plug

Properties:

Body Style
Electrically shielded, partial insulator, gasket seat
Dc Resistance Rating In Ohms
10000.0
Reach Length
Between 0.359 inches and 0.391 inches
Usage Design
Engine other than aircraft
Width Across Flats
Between 0.802 inches and 0.817 inches
Electrode Style
B1 single flat shell ground electrode (see also style 4)
Electrode Style
Single flat shell ground electrode (see also style 4)
Mean Effective Pressure Rating
135.0 pounds per square inch
Seat Major Diameter
Between 0.785 inches and 0.800 inches
Height Above Mounting Surface
2.875 inches
Top To Terminal Contact Distance
Between 1.245 inches and 1.295 inches
Top To Shield Thread Distance
Between 0.095 inches and 0.155 inches
Shield Thread Length
0.375 inches
Barrel Inside Diameter
Between 0.505 inches and 0.510 inches
Terminal Sleeve Inside Diameter
Between 0.301 inches and 0.316 inches
Test Data Document
81348-ws506 specification (includes engineering type bulletins, brochures, etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "", etc.).
Nondefinitive Specification/std Data
B class and 1 type
NSN
2920-00-726-9545
Part Number
WR47
Description
Spark Plug
CAGE
70040

An item containing two or more electrodes across which an electric spark is discharged to ignite a fuel and air mixture, primarily in internal combustion engines. Excludes glow plug; and electrode.

Part WR47 NSN 2920-00-726-9545

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
00294
FIIG:
A10400
Concept No.:
App. Key:
A
Cond. Code:
2
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:
177080
UFC:
87080
LTL:
RATING VARIABLE
LCL:
100.0
WCC:
583
TCC:
Z
SHC:
5
ACC:
Equipment for Aircraft

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Schedule B and Export
  • Schedule B: 8511100000
  • SITC: 77831
  • End Use: Engines and engine parts (carburetors, pistons, rings, and valves)
  • NAICS: 336320
  • USDA: 1

Freight Class: Spark plugs for internal combustion engines

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