1COM

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Federal Supply Group

Engine Accessories

Federal Supply Classification

2920 Nonaircraft Engine Electrical System Components

National Stock Number

2920-00-540-8322

Item Name Code

00294

Assigment Date

01/01/1963 (63 years ago)

0.625 inches nominal reach length, 0.938 inches nominal width across flats, single flat shell ground electrode (see also style 4) electrode style, engine other than aircraft usage design, unshielded,solid or threaded post,gasket seat body style

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Body Style: unshielded,solid or threaded post,gasket seat
Reach Length: 0.625 inches nominal
Usage Design: engine other than aircraft
Width Across Flats: 0.938 inches nominal
Electrode Style: single flat shell ground electrode (see also style 4)
Seat Major Diameter: 1.125 inches maximum
Height Above Mounting Surface: 2.250 inches nominal
Pressure Rating: 140.0 pounds per square inch minimum and 150.0 pounds per square inch maximum mean effective
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", "nominal", etc.)."
Thread Size And Series/Type Designator: 7/8-18 uns base
Nondefinitive Spec/Std Data: 3 type and b class

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
2920-00-391-3767	No Name Available	07/30/1970
2920-00-516-5623	No Name Available	11/18/1970
2920-00-542-1314	No Name Available	01/01/1960

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number	Name
07236A3	Spark Plug
1559472	Spark Plug
1COM	Spark Plug
75C0M	Spark Plug
995444R91	Spark Plug
TT8	Spark Plug
W14	Spark Plug

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 2920-00-540-8322?

The FSCG of the NSN 2920-00-540-8322 is 2920

Does the NSN 2920-00-540-8322 have a Schedule B code assigned?

Yes, the Schedule B code is 8511100000

Does NSN 2920-00-540-8322 require demilitarization?

Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.

Does NSN 2920-00-540-8322 contain precious materials?

Precious metal content is unknown

Does NSN 2920-00-540-8322 contain hazardous materials?

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

When the NSN 2920-00-540-8322 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963