PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

8421Switch Assembly

Electro Scientific Industries Inc · NSN 5930-01-177-0366 · FSC 5930 · No Item Name Available
Verified by PartsTable
NSN 5930-01-177-0366 — this item is cataloged by the U.S. Government under National Stock Number 5930-01-177-0366. Primary manufacturer part number: 8421.
Features
  • Switch Assembly — FSC 5930
  • 2 verified cross-references
  • Primary manufacturer: Electro Scientific Industries Inc
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Switch Assembly, cataloged under National Stock Number 5930-01-177-0366, is classified within Federal Supply Class 5930 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Electro Scientific Industries Inc. This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameSwitch Assembly
FSC / FSG5930 — No Item Name Available (FSG 59)
ManufacturersElectro Scientific Industries Inc (CAGE 11837); Electro Scientific Industries Inc (CAGE 9Y504)
Technical Specifications
ParameterValue
NSN5930-01-177-0366
Primary Part Number8421
Item NameSwitch Assembly
FSC / FSG5930 / 59 — No Item Name Available
ManufacturerElectro Scientific Industries Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
2090-00-372-6064TYPE I - STANDARD INTERCHANGEABLE
Repair Kit,standard
Naval Ship Systems Command
1075-00-383-82963134768C INTERCHANGEABLE
Diaphragm,starboard
Naval Ship Systems Command
6625-00-477-7844003086 INTERCHANGEABLE
Indicator,digital Display
Moog Inc Div Moog Inc., Space and Defense - Salt Lake City
5950-00-792-6386140788-01 INTERCHANGEABLE
Transformer,audio Frequency
Ge Aviation Systems Llc
6530-00-906-9636 INTERCHANGEABLE
Syringe,fountain
5960-00-914-0144 INTERCHANGEABLE
Electron Tube
5975-00-950-64098421 INTERCHANGEABLE
Box Connector,electrical
Abb Installation Products Inc
5996-01-394-1154 INTERCHANGEABLE
Amplifier,radio Frequency
2540-01-630-2025842-1 INTERCHANGEABLE
Latch,hood,vehicular
Buckhorn Rubber Products Inc.
Cross-Reference Index
Part NumberManufacturer
8421 Electro Scientific Industries Inc (USA)
8421 PRIMARY Electro Scientific Industries Inc (USA)
Related Parts
2090-00-372-6064INTERCHANGEABLE
REPAIR KIT,STANDARD
TYPE I - STANDARD
1075-00-383-8296INTERCHANGEABLE
DIAPHRAGM,STARBOARD
3134768C
6625-00-477-7844INTERCHANGEABLE
INDICATOR,DIGITAL DISPLAY
003086
5950-00-792-6386INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
140788-01
6530-00-906-9636INTERCHANGEABLE
SYRINGE,FOUNTAIN
5960-00-914-0144INTERCHANGEABLE
ELECTRON TUBE
5975-00-950-6409INTERCHANGEABLE
BOX CONNECTOR,ELECTRICAL
8421
5996-01-394-1154INTERCHANGEABLE
AMPLIFIER,RADIO FREQUENCY
2540-01-630-2025INTERCHANGEABLE
LATCH,HOOD,VEHICULAR
842-1

Frequently Asked Questions

What is NSN 5930-01-177-0366?

NSN 5930-01-177-0366 is a Switch Assembly, manufactured by Electro Scientific Industries Inc, classified under FSC 5930 (No Item Name Available). Status: active.

What are the part numbers for NSN 5930-01-177-0366?

NSN 5930-01-177-0366 has 2 cross-referenced part numbers: 8421 (Electro Scientific Industries Inc), 8421 (Electro Scientific Industries Inc).

What NSN replaces 5930-01-177-0366?

There are 9 known substitutes for 5930-01-177-0366: 2090-00-372-6064, 1075-00-383-8296, 6625-00-477-7844 and 6 more. Verify interchangeability with system specifications before substitution.

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