PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

7703Relay Subassembly

Cessna Aircraft Co Arc Avionics Div · NSN 5945-00-549-9355 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-00-549-9355 — this item is cataloged by the U.S. Government under National Stock Number 5945-00-549-9355. Primary manufacturer part number: 7703.
Features
  • Relay Subassembly — FSC 5945
  • Component Type and Quantity: 1 ARMATURE AND 1 INSULATOR AND 1 PIN AND 1 PLATE AND 1 BASE AND 2 SOLENOID AND 1 SPRING
  • 1 verified cross-reference
  • Primary manufacturer: Cessna Aircraft Co Arc Avionics Div
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Relay Subassembly, cataloged under National Stock Number 5945-00-549-9355, 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 Cessna Aircraft Co Arc Avionics Div. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference 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
NSN5945-00-549-9355
Primary Part Number7703
Item NameRelay Subassembly
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerCessna Aircraft Co Arc Avionics Div
StatusACTIVE
Component Type and Quantity1 ARMATURE AND 1 INSULATOR AND 1 PIN AND 1 PLATE AND 1 BASE AND 2 SOLENOID AND 1 SPRING
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3540-00-006-2921 INTERCHANGEABLE
Sealing Machine
2815-00-175-73217703-001 INTERCHANGEABLE
Guide,valve
Cooper Machinery Services Llc
2825-00-175-88647703 INTERCHANGEABLE
Shaft Assembly
Westinghouse Electric Corp
3455-00-243-9488A814-45R INTERCHANGEABLE
Cutter,milling,angle
F & D Tool Co Inc
4820-00-272-3346 INTERCHANGEABLE
Cock,drain
5342-00-489-3456770-3 INTERCHANGEABLE
Mount,resilient,weapon System
Hutchinson Aerospace & Industry, Inc. Dba Barry Wright Corp
5133-00-839-5469 INTERCHANGEABLE
Drill,twist
5962-01-176-0395 INTERCHANGEABLE
Microcircuit,memory
6210-01-459-140077643 INTERCHANGEABLE
Light,warning
Grote Industries Inc Dba Grote Manufacturing Co Div Military Products
9310-01-608-49857703 INTERCHANGEABLE
Paper,cover
3 Star Papers Ltd Dba Limited Papers Div Limited Papers
Cross-Reference Index
Part NumberManufacturer
7703 Cessna Aircraft Co Arc Avionics Div (USA)
Related Parts
3540-00-006-2921INTERCHANGEABLE
SEALING MACHINE
2815-00-175-7321INTERCHANGEABLE
GUIDE,VALVE
7703-001
2825-00-175-8864INTERCHANGEABLE
SHAFT ASSEMBLY
7703
3455-00-243-9488INTERCHANGEABLE
CUTTER,MILLING,ANGLE
A814-45R
4820-00-272-3346INTERCHANGEABLE
COCK,DRAIN
5342-00-489-3456INTERCHANGEABLE
MOUNT,RESILIENT,WEAPON SYSTEM
770-3
5133-00-839-5469INTERCHANGEABLE
DRILL,TWIST
5962-01-176-0395INTERCHANGEABLE
MICROCIRCUIT,MEMORY
6210-01-459-1400INTERCHANGEABLE
LIGHT,WARNING
77643
9310-01-608-4985INTERCHANGEABLE
PAPER,COVER
7703
5998-01-626-1701INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
5930-01-664-6448INTERCHANGEABLE
SWITCH,ELECTRONIC

Frequently Asked Questions

What is NSN 5945-00-549-9355?

NSN 5945-00-549-9355 is a Relay Subassembly, manufactured by Cessna Aircraft Co Arc Avionics Div, classified under FSC 5945 (No Item Name Available). Status: active.

What are the part numbers for NSN 5945-00-549-9355?

NSN 5945-00-549-9355 has 1 cross-referenced part number: 7703 (Cessna Aircraft Co Arc Avionics Div).

What NSN replaces 5945-00-549-9355?

There are 12 known substitutes for 5945-00-549-9355: 3540-00-006-2921, 2815-00-175-7321, 2825-00-175-8864 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 7703?

Key specifications for 7703: Overall Width: 0.875 INCHES NOMINAL IN; Special Features: TWO NO. 3-48 TAPPED HOLES,ONE 11/64 IN. BY 7/64 IN. HOLE IRREGULARLY SPACED;USED AS AN ACTUATOR IN; Overall Height: 1.406 INCHES NOMINAL IN; Component Type and Quantity: 1 ARMATURE AND 1 INSULATOR AND 1 PIN AND 1 PLATE AND 1 BASE AND 2 SOLENOID AND 1 SPRING. 6 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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