PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

102539Retainer Gyr0

The Boeing Company Div Legacy Boeing Hb1 · NSN 1420-00-942-0019 · FSC 1420 · No Item Name Available
Verified by PartsTable
NSN 1420-00-942-0019 — this item is cataloged by the U.S. Government under National Stock Number 1420-00-942-0019. Primary manufacturer part number: 102539.
Features
  • Retainer Gyr0 — FSC 1420
  • 2 verified cross-references
  • Primary manufacturer: The Boeing Company Div Legacy Boeing Hb1
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Retainer Gyr0, cataloged under National Stock Number 1420-00-942-0019, is classified within Federal Supply Class 1420 (No Item Name Available) of the Guided Missiles group. The primary manufacturer of record is The Boeing Company Div Legacy Boeing Hb1. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameRetainer Gyr0
FSC / FSG1420 — No Item Name Available (FSG 14)
ManufacturersMassachusetts Institute of Technology (CAGE 80230); The Boeing Company Div Legacy Boeing Hb1 (CAGE 94756)
Technical Specifications
ParameterValue
NSN1420-00-942-0019
Primary Part Number102539
Item NameRetainer Gyr0
FSC / FSG1420 / 14 — No Item Name Available
ManufacturerThe Boeing Company Div Legacy Boeing Hb1
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5826-00-945-2212102539 INTERCHANGEABLE
Lighting Assy,indic
Astronautics Corporation of America
5305-01-336-8816 INTERCHANGEABLE
Screw,machine
6625-01-355-4779 INTERCHANGEABLE
Test Set,radio Frequency Power
Cross-Reference Index
Part NumberManufacturer
102539 Massachusetts Institute of Technology (USA)
102539 PRIMARY The Boeing Company Div Legacy Boeing Hb1 (USA)
Related Parts
5826-00-945-2212INTERCHANGEABLE
LIGHTING ASSY,INDIC
102539
5305-01-336-8816INTERCHANGEABLE
SCREW,MACHINE
6625-01-355-4779INTERCHANGEABLE
TEST SET,RADIO FREQUENCY POWER

Frequently Asked Questions

What is NSN 1420-00-942-0019?

NSN 1420-00-942-0019 is a Retainer Gyr0, manufactured by The Boeing Company Div Legacy Boeing Hb1, classified under FSC 1420 (No Item Name Available). Status: active.

What are the part numbers for NSN 1420-00-942-0019?

NSN 1420-00-942-0019 has 2 cross-referenced part numbers: 102539 (Massachusetts Institute of Technology), 102539 (The Boeing Company Div Legacy Boeing Hb1).

What NSN replaces 1420-00-942-0019?

There are 3 known substitutes for 1420-00-942-0019: 5826-00-945-2212, 5305-01-336-8816, 6625-01-355-4779. Verify interchangeability with system specifications before substitution.

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