PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

42981Relay-Switch

Viavi Solutionsllc · NSN 5999-01-716-0377 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-01-716-0377 — this item is cataloged by the U.S. Government under National Stock Number 5999-01-716-0377. Primary manufacturer part number: 42981.
Features
  • Relay-Switch — FSC 5999
  • 1 verified cross-reference
  • Primary manufacturer: Viavi Solutionsllc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Relay-Switch, cataloged under National Stock Number 5999-01-716-0377, is classified within Federal Supply Class 5999 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Viavi Solutionsllc. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Catalog Facts
Item NameRelay-Switch
FSC / FSG5999 — No Item Name Available (FSG 59)
ManufacturersViavi Solutionsllc (CAGE 51190)
Technical Specifications
ParameterValue
NSN5999-01-716-0377
Primary Part Number42981
Item NameRelay-Switch
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerViavi Solutionsllc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Criticality CodeN
Unit of IssueEA
SMR CodeJ
Verified Substitutes 7
5930-00-127-278927239 INTERCHANGEABLE
Switch,flow
Setra Systems, Inc. Dba Gems Sensors
5342-00-488-575742981 INTERCHANGEABLE
Coupling,clamp,grooved
Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution
3120-00-796-418542981 INTERCHANGEABLE
Bearing,sleeve
Mitsubishi Caterpillar Forklift America, Inc
2940-01-018-48731P7360 INTERCHANGEABLE
Filter Element,intake Air Cleane
Caterpillar Inc Div Caterpillar Defense
5962-01-088-986042981 INTERCHANGEABLE
Microcircuit,digital
Raytheon Company Div Rmd Strategic
1730-01-195-4628799 INTERCHANGEABLE
Tool,fuel Sump Drain
Service Support Systems, Inc.
5365-01-205-5848 INTERCHANGEABLE
Shim
Cross-Reference Index
Part NumberManufacturer
42981 PRIMARY Viavi Solutionsllc (USA)
Related Parts
5930-00-127-2789INTERCHANGEABLE
SWITCH,FLOW
27239
5342-00-488-5757INTERCHANGEABLE
COUPLING,CLAMP,GROOVED
42981
3120-00-796-4185INTERCHANGEABLE
BEARING,SLEEVE
42981
2940-01-018-4873INTERCHANGEABLE
FILTER ELEMENT,INTAKE AIR CLEANE
1P7360
5962-01-088-9860INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
42981
1730-01-195-4628INTERCHANGEABLE
TOOL,FUEL SUMP DRAIN
799
5365-01-205-5848INTERCHANGEABLE
SHIM

Frequently Asked Questions

What is NSN 5999-01-716-0377?

NSN 5999-01-716-0377 is a Relay-Switch, manufactured by Viavi Solutionsllc, classified under FSC 5999 (No Item Name Available). Status: active.

What are the part numbers for NSN 5999-01-716-0377?

NSN 5999-01-716-0377 has 1 cross-referenced part number: 42981 (Viavi Solutionsllc).

What NSN replaces 5999-01-716-0377?

There are 7 known substitutes for 5999-01-716-0377: 5930-00-127-2789, 5342-00-488-5757, 3120-00-796-4185 and 4 more. Verify interchangeability with system specifications before substitution.

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