PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MILS25879ASwitch,radio Frequency Transmiss

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5985-00-837-0000 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-00-837-0000 — this item is cataloged by the U.S. Government under National Stock Number 5985-00-837-0000. Primary manufacturer part number: MILS25879A.
Features
  • Switch,radio Frequency Transmiss — FSC 5985
  • 2 verified cross-references
  • Primary manufacturer: Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Switch,radio Frequency Transmiss, cataloged under National Stock Number 5985-00-837-0000, is classified within Federal Supply Class 5985 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameSwitch,radio Frequency Transmiss
FSC / FSG5985 — No Item Name Available (FSG 59)
ManufacturersMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M (CAGE 81349)
Technical Specifications
ParameterValue
NSN5985-00-837-0000
Primary Part NumberMILS25879A
Item NameSwitch,radio Frequency Transmiss
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5985-00-837-9973CS319 INTERCHANGEABLE
Switch,radio Frequency Transmiss
Meggitt Safety Systems Inc
Cross-Reference Index
Part NumberManufacturer
MILS25879A Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
SA521A Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5985-00-837-9973INTERCHANGEABLE
SWITCH,RADIO FREQUENCY TRANSMISS
CS319

Frequently Asked Questions

What is NSN 5985-00-837-0000?

NSN 5985-00-837-0000 is a Switch,radio Frequency Transmiss, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5985 (No Item Name Available). Status: active.

What are the part numbers for NSN 5985-00-837-0000?

NSN 5985-00-837-0000 has 2 cross-referenced part numbers: MILS25879A (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), SA521A (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5985-00-837-0000?

There is 1 known substitute for 5985-00-837-0000: 5985-00-837-9973. Verify interchangeability with system specifications before substitution.

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