PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

425Spark Plug

Allied-Signal Inc Autolite Div · NSN 2920-01-339-8551 · FSC 2920 · No Item Name Available
Verified by PartsTable
NSN 2920-01-339-8551 — this item is cataloged by the U.S. Government under National Stock Number 2920-01-339-8551. Primary manufacturer part number: 425.
Features
  • Spark Plug — FSC 2920
  • Body Style: UNSHIELDED, SOLID POST, TAPERED SEAT
  • Usage Design: ENGINE OTHER THAN AIRCRAFT
  • 4 verified cross-references
  • Primary manufacturer: Allied-Signal Inc Autolite Div
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Spark Plug, cataloged under National Stock Number 2920-01-339-8551, is classified within Federal Supply Class 2920 (No Item Name Available) of the Engine Accessories group. The primary manufacturer of record is Allied-Signal Inc Autolite Div. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2920-01-339-8551
Primary Part Number425
Item NameSpark Plug
FSC / FSG2920 / 29 — No Item Name Available
ManufacturerAllied-Signal Inc Autolite Div
StatusACTIVE
Body StyleUNSHIELDED, SOLID POST, TAPERED SEAT
Usage DesignENGINE OTHER THAN AIRCRAFT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5975-00-086-1371896 INTERCHANGEABLE
Support,switchbox
Egs Electrical Group Appleton Div
2930-00-211-8759896 INTERCHANGEABLE
Pump,cooling System,engine
Elgin Industries Inc. Dba
5325-00-248-7102896 INTERCHANGEABLE
Grommet,nonmetallic
Atlantic India Rubber Co Inc
6110-00-252-1732165-337-2 INTERCHANGEABLE
Regulator,voltage
Bi Technologies Corporation Div Bi Technologies Corp.
4820-00-400-2194536138-1 INTERCHANGEABLE
Valve,globe
Raytheon Company Dba Raytheon
2990-00-411-24791883 INTERCHANGEABLE
Muffler,exhaust
Arvin Industries Inc
6645-00-701-2689 INTERCHANGEABLE
Timer,interval
5110-00-720-131521-100 INTERCHANGEABLE
Machete,rigid Handle
Stanley Industrial Hardware Div the Stanley Works
6135-00-825-6692ANSI C18.1M INTERCHANGEABLE
Battery,nonrechargeable
American National Standards Institute Incorporated Dba American National Standards Institute
9390-00-899-6197L356000027 INTERCHANGEABLE
Nonmetallic Channel
Lockheed Martin Librascope Corporation
Cross-Reference Index
Part NumberManufacturer
B-4H Skidril Inc (CAN)
425 PRIMARY Allied-Signal Inc Autolite Div (USA)
B-4H Skidril Inc (USA)
896 Champion Aviation Inc Automotive Div (USA)
Related Parts
5975-00-086-1371INTERCHANGEABLE
SUPPORT,SWITCHBOX
896
2930-00-211-8759INTERCHANGEABLE
PUMP,COOLING SYSTEM,ENGINE
896
5325-00-248-7102INTERCHANGEABLE
GROMMET,NONMETALLIC
896
6110-00-252-1732INTERCHANGEABLE
REGULATOR,VOLTAGE
165-337-2
4820-00-400-2194INTERCHANGEABLE
VALVE,GLOBE
536138-1
2990-00-411-2479INTERCHANGEABLE
MUFFLER,EXHAUST
1883
6645-00-701-2689INTERCHANGEABLE
TIMER,INTERVAL
5110-00-720-1315INTERCHANGEABLE
MACHETE,RIGID HANDLE
21-100
6135-00-825-6692INTERCHANGEABLE
BATTERY,NONRECHARGEABLE
ANSI C18.1M
9390-00-899-6197INTERCHANGEABLE
NONMETALLIC CHANNEL
L356000027
4320-00-918-8709INTERCHANGEABLE
IMPELLER,PUMP,CENTRIFUGAL
5325-01-004-8043INTERCHANGEABLE
EYELET,METALLIC
135135-209

Frequently Asked Questions

What is NSN 2920-01-339-8551?

NSN 2920-01-339-8551 is a Spark Plug, manufactured by Allied-Signal Inc Autolite Div, classified under FSC 2920 (No Item Name Available). Status: active.

What are the part numbers for NSN 2920-01-339-8551?

NSN 2920-01-339-8551 has 4 cross-referenced part numbers: B-4H (Skidril Inc), 425 (Allied-Signal Inc Autolite Div), B-4H (Skidril Inc), 896 (Champion Aviation Inc Automotive Div).

What NSN replaces 2920-01-339-8551?

There are 12 known substitutes for 2920-01-339-8551: 5975-00-086-1371, 2930-00-211-8759, 5325-00-248-7102 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 425?

Key specifications for 425: Special Features: 3820-01-326-7997,RESISTANT PLUG; Body Style: UNSHIELDED, SOLID POST, TAPERED SEAT; Usage Design: ENGINE OTHER THAN AIRCRAFT. 3 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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