PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

42423Button Assembly,emergency Releas

Desa Industries Inc Div of Amca International Corp · NSN 2990-00-306-5550 · FSC 2990 · No Item Name Available
Verified by PartsTable
NSN 2990-00-306-5550 — this item is cataloged by the U.S. Government under National Stock Number 2990-00-306-5550. Primary manufacturer part number: 42423.
Features
  • Button Assembly,emergency Releas — FSC 2990
  • General Characteristics Item Description: CONSISTS OF ONE BUTTON P/N 41509,ONE SPRING P/N 41508,ONE BUSHING P/N 41512,AND ONE ROD P/N 41511
  • 1 verified cross-reference
  • Primary manufacturer: Desa Industries Inc Div of Amca International Corp
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Button Assembly,emergency Releas, cataloged under National Stock Number 2990-00-306-5550, is classified within Federal Supply Class 2990 (No Item Name Available) of the Engine Accessories group. The primary manufacturer of record is Desa Industries Inc Div of Amca International Corp. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2990-00-306-5550
Primary Part Number42423
Item NameButton Assembly,emergency Releas
FSC / FSG2990 / 29 — No Item Name Available
ManufacturerDesa Industries Inc Div of Amca International Corp
StatusACTIVE
General Characteristics Item DescriptionCONSISTS OF ONE BUTTON P/N 41509,ONE SPRING P/N 41508,ONE BUSHING P/N 41512,AND ONE ROD P/N 41511
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
3020-00-507-325142423-1 INTERCHANGEABLE
Gear,helical
Cummins Inc.
4810-01-025-324442423 INTERCHANGEABLE
Disk,valve
Eaton Corporation Dba Airframe Div Fuel & Motion Control Systems
2940-01-038-878742423 INTERCHANGEABLE
Filter Element,intake Air Cleane
Wix Corp
5962-01-089-781542423 INTERCHANGEABLE
Microcircuit,digital
Raytheon Company Div Rmd Strategic
Cross-Reference Index
Part NumberManufacturer
42423 Desa Industries Inc Div of Amca International Corp (USA)
Related Parts
3020-00-507-3251INTERCHANGEABLE
GEAR,HELICAL
42423-1
4810-01-025-3244INTERCHANGEABLE
DISK,VALVE
42423
2940-01-038-8787INTERCHANGEABLE
FILTER ELEMENT,INTAKE AIR CLEANE
42423
5962-01-089-7815INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
42423

Frequently Asked Questions

What is NSN 2990-00-306-5550?

NSN 2990-00-306-5550 is a Button Assembly,emergency Releas, manufactured by Desa Industries Inc Div of Amca International Corp, classified under FSC 2990 (No Item Name Available). Status: active.

What are the part numbers for NSN 2990-00-306-5550?

NSN 2990-00-306-5550 has 1 cross-referenced part number: 42423 (Desa Industries Inc Div of Amca International Corp).

What NSN replaces 2990-00-306-5550?

There are 4 known substitutes for 2990-00-306-5550: 3020-00-507-3251, 4810-01-025-3244, 2940-01-038-8787 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 42423?

Key specifications for 42423: General Characteristics Item Description: CONSISTS OF ONE BUTTON P/N 41509,ONE SPRING P/N 41508,ONE BUSHING P/N 41512,AND ONE ROD P/N 41511. 1 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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