PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4309Relay Assembly

Charles Industries, Llc Div Telecom · NSN 5945-01-090-1420 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-01-090-1420 — this item is cataloged by the U.S. Government under National Stock Number 5945-01-090-1420. Primary manufacturer part number: 4309.
Features
  • Relay Assembly — FSC 5945
  • Controlling Agency: WESCOM,INC.
  • Individual Relay Quantity: 5
  • Relay Type: AUXILIARY
  • Identifying Number: 4309 PART NO.
  • Mounting Facility: PANEL
  • 2 verified cross-references
  • Primary manufacturer: Charles Industries, Llc Div Telecom
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Relay Assembly, cataloged under National Stock Number 5945-01-090-1420, is classified within Federal Supply Class 5945 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Charles Industries, Llc Div Telecom. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5945-01-090-1420
Primary Part Number4309
Item NameRelay Assembly
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerCharles Industries, Llc Div Telecom
StatusACTIVE
Controlling AgencyWESCOM,INC.
Individual Relay Quantity5
Relay TypeAUXILIARY
Identifying Number4309 PART NO.
Mounting FacilityPANEL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3110-00-155-61881-73309 INTERCHANGEABLE
Bearing,ball,annular
Skf Usa Inc.
3110-00-155-95591309W INTERCHANGEABLE
Bearing,ball,annular
Federal-Mogul Corp Government Sales Dept
3110-00-156-1718 INTERCHANGEABLE
Bearing,ball,thrust
5310-00-221-31424309 INTERCHANGEABLE
Washer,flat
L & L Boiler Maintenance Inc
6250-00-223-4876156-126 INTERCHANGEABLE
Socket,lamp Starter
Safetran Systems Co Sub of Cci Corp
5130-00-447-82694309 INTERCHANGEABLE
Spacer,saw Shaft Be
Skil Corp
8040-00-852-6940 INTERCHANGEABLE
Adhesive
5945-00-931-1552 INTERCHANGEABLE
Relay Assembly
4530-01-052-9714 INTERCHANGEABLE
Whirl Chamber Cartridge
6150-01-124-0201 INTERCHANGEABLE
Power Strip,electrical Outlet
Cross-Reference Index
Part NumberManufacturer
4309 PRIMARY Charles Industries, Llc Div Telecom (USA)
A91-430900 Charles Industries, Llc Div Telecom (USA)
Related Parts
3110-00-155-6188INTERCHANGEABLE
BEARING,BALL,ANNULAR
1-73309
3110-00-155-9559INTERCHANGEABLE
BEARING,BALL,ANNULAR
1309W
3110-00-156-1718INTERCHANGEABLE
BEARING,BALL,THRUST
5310-00-221-3142INTERCHANGEABLE
WASHER,FLAT
4309
6250-00-223-4876INTERCHANGEABLE
SOCKET,LAMP STARTER
156-126
5130-00-447-8269INTERCHANGEABLE
SPACER,SAW SHAFT BE
4309
8040-00-852-6940INTERCHANGEABLE
ADHESIVE
5945-00-931-1552INTERCHANGEABLE
RELAY ASSEMBLY
4530-01-052-9714INTERCHANGEABLE
WHIRL CHAMBER CARTRIDGE
6150-01-124-0201INTERCHANGEABLE
POWER STRIP,ELECTRICAL OUTLET
6515-01-174-2394INTERCHANGEABLE
CASE,NEEDLE AND BLADE,COUNTER-DI
4309
5950-01-389-7919INTERCHANGEABLE
REACTOR
4309

Frequently Asked Questions

What is NSN 5945-01-090-1420?

NSN 5945-01-090-1420 is a Relay Assembly, manufactured by Charles Industries, Llc Div Telecom, classified under FSC 5945 (No Item Name Available). Status: active.

What are the part numbers for NSN 5945-01-090-1420?

NSN 5945-01-090-1420 has 2 cross-referenced part numbers: 4309 (Charles Industries, Llc Div Telecom), A91-430900 (Charles Industries, Llc Div Telecom).

What NSN replaces 5945-01-090-1420?

There are 12 known substitutes for 5945-01-090-1420: 3110-00-155-6188, 3110-00-155-9559, 3110-00-156-1718 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4309?

Key specifications for 4309: Overall Height: 5.600 INCHES NOMINAL IN; Controlling Agency: WESCOM,INC.; Individual Relay Quantity: 5; Relay Type: AUXILIARY. 8 total characteristics are documented in the Federal Logistics Information System.

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