PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

42803Switch,flow

Thomas Products Llc · NSN 5930-01-323-4780 · FSC 5930 · No Item Name Available
Verified by PartsTable
NSN 5930-01-323-4780 — this item is cataloged by the U.S. Government under National Stock Number 5930-01-323-4780. Primary manufacturer part number: 42803.
Features
  • Switch,flow — FSC 5930
  • 3 verified cross-references
  • Primary manufacturer: Thomas Products Llc
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Switch,flow, cataloged under National Stock Number 5930-01-323-4780, 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 Thomas Products Llc. This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameSwitch,flow
FSC / FSG5930 — No Item Name Available (FSG 59)
ManufacturersThomas Products Llc (CAGE 64413); Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M (CAGE 81349)
Technical Specifications
ParameterValue
NSN5930-01-323-4780
Primary Part Number42803
Item NameSwitch,flow
FSC / FSG5930 / 59 — No Item Name Available
ManufacturerThomas Products Llc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
5330-00-064-738742803 INTERCHANGEABLE
Gasket
Ashcroft Inc Dba Heise
9540-00-175-7634 INTERCHANGEABLE
Structural Section,special Shape
9540-00-261-5225 INTERCHANGEABLE
Structural Section,special Shape
5360-01-097-652514761N PIECE 7 INTERCHANGEABLE
Spring,helical,compression
Leslie Controls, Inc. Dba Leslie Controls Inc
5962-01-178-245942803 INTERCHANGEABLE
Microcircuit,digital
Raytheon Company Div Rmd Strategic
5950-01-267-89622914225-0001 INTERCHANGEABLE
Transformer,power
Raytheon Company Dba Raytheon
6110-01-429-041142803-1 INTERCHANGEABLE
Panel,power Distribution
Fleet Readiness Center East Div Department of Navy
7610-01-450-8640 INTERCHANGEABLE
Book
6515-01-505-4247428.03 INTERCHANGEABLE
Scoop,stainless Steel
Ams, Inc
2940-01-624-7575142-1404 INTERCHANGEABLE
Filter Element,intake Air Cleane
Caterpillar Inc Div Caterpillar Defense
Cross-Reference Index
Part NumberManufacturer
42803 PRIMARY Thomas Products Llc (USA)
M55342K06B17D4R Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
M55342/6-K17R4FRR Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5330-00-064-7387INTERCHANGEABLE
GASKET
42803
9540-00-175-7634INTERCHANGEABLE
STRUCTURAL SECTION,SPECIAL SHAPE
9540-00-261-5225INTERCHANGEABLE
STRUCTURAL SECTION,SPECIAL SHAPE
5360-01-097-6525INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
14761N PIECE 7
5962-01-178-2459INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
42803
5950-01-267-8962INTERCHANGEABLE
TRANSFORMER,POWER
2914225-0001
6110-01-429-0411INTERCHANGEABLE
PANEL,POWER DISTRIBUTION
42803-1
7610-01-450-8640INTERCHANGEABLE
BOOK
6515-01-505-4247INTERCHANGEABLE
SCOOP,STAINLESS STEEL
428.03
2940-01-624-7575INTERCHANGEABLE
FILTER ELEMENT,INTAKE AIR CLEANE
142-1404
7105-01-668-3734INTERCHANGEABLE
CHAIR,FOLDING

Frequently Asked Questions

What is NSN 5930-01-323-4780?

NSN 5930-01-323-4780 is a Switch,flow, manufactured by Thomas Products Llc, classified under FSC 5930 (No Item Name Available). Status: active.

What are the part numbers for NSN 5930-01-323-4780?

NSN 5930-01-323-4780 has 3 cross-referenced part numbers: 42803 (Thomas Products Llc), M55342K06B17D4R (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), M55342/6-K17R4FRR (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5930-01-323-4780?

There are 11 known substitutes for 5930-01-323-4780: 5330-00-064-7387, 9540-00-175-7634, 9540-00-261-5225 and 8 more. Verify interchangeability with system specifications before substitution.

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