PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5643-5Ring,backup

Goodrich Aerospace Canada Ltd · NSN 1620-00-751-8728 · FSC 1620 · No Item Name Available
Verified by PartsTable
NSN 1620-00-751-8728 — this item is cataloged by the U.S. Government under National Stock Number 1620-00-751-8728. Primary manufacturer part number: 5643-5.
Features
  • Ring,backup — FSC 1620
  • 2 verified cross-references
  • Primary manufacturer: Goodrich Aerospace Canada Ltd
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Ring,backup, cataloged under National Stock Number 1620-00-751-8728, is classified within Federal Supply Class 1620 (No Item Name Available) of the Aircraft Components and Accessories group. The primary manufacturer of record is Goodrich Aerospace Canada Ltd. 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.

Catalog Facts
Item NameRing,backup
FSC / FSG1620 — No Item Name Available (FSG 16)
ManufacturersGoodrich Aerospace Canada Ltd (CAGE 02121)
Technical Specifications
ParameterValue
NSN1620-00-751-8728
Primary Part Number5643-5
Item NameRing,backup
FSC / FSG1620 / 16 — No Item Name Available
ManufacturerGoodrich Aerospace Canada Ltd
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5960-00-262-1301 INTERCHANGEABLE
Electron Tube
6210-00-299-6704 INTERCHANGEABLE
Fixture,lighting
2010-00-363-7658543BPC5 INTERCHANGEABLE
Brakeband
Allard Nazarian Group, Inc. Dba Granite State Manufacturing
5960-00-577-3016 INTERCHANGEABLE
Electron Tube
5365-00-630-198256435 INTERCHANGEABLE
Spacer,sleeve
Trelleborg Sealing Solutions Us, Inc.
2920-00-640-75141118578 INTERCHANGEABLE
Regulator,engine Generator
Borgwarner Pds (anderson), L.l.c.
1620-00-909-2242 INTERCHANGEABLE
Plate,pilot Valve
9330-00-933-8801 INTERCHANGEABLE
Window,observation
3040-00-955-961356435 INTERCHANGEABLE
Shaft,shouldered
Parker Hannifin Corporation Div Hydraulic Systems Division
6625-01-028-53485643 INTERCHANGEABLE
Multimeter
Astronics Test Systems Inc
Cross-Reference Index
Part NumberManufacturer
5643-5 PRIMARY Goodrich Aerospace Canada Ltd (CAN)
5643 PRIMARY Goodrich Aerospace Canada Ltd (CAN)
Related Parts
5960-00-262-1301INTERCHANGEABLE
ELECTRON TUBE
6210-00-299-6704INTERCHANGEABLE
FIXTURE,LIGHTING
2010-00-363-7658INTERCHANGEABLE
BRAKEBAND
543BPC5
5960-00-577-3016INTERCHANGEABLE
ELECTRON TUBE
5365-00-630-1982INTERCHANGEABLE
SPACER,SLEEVE
56435
2920-00-640-7514INTERCHANGEABLE
REGULATOR,ENGINE GENERATOR
1118578
1620-00-909-2242INTERCHANGEABLE
PLATE,PILOT VALVE
9330-00-933-8801INTERCHANGEABLE
WINDOW,OBSERVATION
3040-00-955-9613INTERCHANGEABLE
SHAFT,SHOULDERED
56435
6625-01-028-5348INTERCHANGEABLE
MULTIMETER
5643
5915-01-262-0959INTERCHANGEABLE
FILTER,BAND PASS
5643
2510-01-613-4551INTERCHANGEABLE
PLATE,WEAR,LEAF SPRING
5643

Frequently Asked Questions

What is NSN 1620-00-751-8728?

NSN 1620-00-751-8728 is a Ring,backup, manufactured by Goodrich Aerospace Canada Ltd, classified under FSC 1620 (No Item Name Available). Status: active.

What are the part numbers for NSN 1620-00-751-8728?

NSN 1620-00-751-8728 has 2 cross-referenced part numbers: 5643-5 (Goodrich Aerospace Canada Ltd), 5643 (Goodrich Aerospace Canada Ltd).

What NSN replaces 1620-00-751-8728?

There are 12 known substitutes for 1620-00-751-8728: 5960-00-262-1301, 6210-00-299-6704, 2010-00-363-7658 and 9 more. Verify interchangeability with system specifications before substitution.

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