Model #SH20A

Spark plug (NSN 2925-00-580-4931)

Special Features
Item is used on army trucks

Body Style

Electrically shielded, partial insulator, gasket seat

Dc Resistance Rating In Ohms

1000.0

Reach Length

Between 0.527 inches and 0.562 inches

Usage Design

Aircraft engine

Width Across Flats

Between 0.870 inches and 0.878 inches

Electrode Style

Triple gap ground electrode

Thread Size And Series/type Designator And Location

18-1.5mm base and 5/8-24 unef shielding

Seat Major Diameter

0.965 inches

Height Above Mounting Surface

Between 2.500 inches and 2.624 inches

Top To Terminal Contact Distance

Between 1.000 inches and 1.070 inches

Top To Shield Thread Distance

0.120 inches

Shield Thread Length

0.250 inches

Barrel Inside Diameter

Between 0.459 inches and 0.479 inches

Terminal Sleeve Inside Diameter

Between 0.378 inches and 0.388 inches

Description

Spark Plug

Cage Code

52970

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