PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20633Ring,orific,manifol

Avox Systems Inc Dba Avox Systems Inc · NSN 1660-00-942-8559 · FSC 1660 · No Item Name Available
Verified by PartsTable
NSN 1660-00-942-8559 — this item is cataloged by the U.S. Government under National Stock Number 1660-00-942-8559. Primary manufacturer part number: 20633.
Features
  • Ring,orific,manifol — FSC 1660
  • 1 verified cross-reference
  • Primary manufacturer: Avox Systems Inc Dba Avox Systems Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Ring,orific,manifol, cataloged under National Stock Number 1660-00-942-8559, is classified within Federal Supply Class 1660 (No Item Name Available) of the Aircraft Components and Accessories group. The primary manufacturer of record is Avox Systems Inc Dba Avox Systems Inc. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameRing,orific,manifol
FSC / FSG1660 — No Item Name Available (FSG 16)
ManufacturersAvox Systems Inc Dba Avox Systems Inc (CAGE 53655)
Technical Specifications
ParameterValue
NSN1660-00-942-8559
Primary Part Number20633
Item NameRing,orific,manifol
FSC / FSG1660 / 16 — No Item Name Available
ManufacturerAvox Systems Inc Dba Avox Systems Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
1440-00-063-4394 INTERCHANGEABLE
Spool
5133-00-224-4027 INTERCHANGEABLE
Drill,twist
5340-00-322-06294919998 INTERCHANGEABLE
Damper,shimmy
Cummins Inc.
5998-01-334-548820633 INTERCHANGEABLE
Circuit Card Assembly
Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company
6515-01-503-535120633 INTERCHANGEABLE
Cover,probe,thermometer
Tidi Products Llc
4730-01-516-4819C20633 INTERCHANGEABLE
Elbow,hose
Hydrasearch Company, Llc
Cross-Reference Index
Part NumberManufacturer
20633 PRIMARY Avox Systems Inc Dba Avox Systems Inc (USA)
Related Parts
1440-00-063-4394INTERCHANGEABLE
SPOOL
5133-00-224-4027INTERCHANGEABLE
DRILL,TWIST
5340-00-322-0629INTERCHANGEABLE
DAMPER,SHIMMY
4919998
5998-01-334-5488INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
20633
6515-01-503-5351INTERCHANGEABLE
COVER,PROBE,THERMOMETER
20633
4730-01-516-4819INTERCHANGEABLE
ELBOW,HOSE
C20633

Frequently Asked Questions

What is NSN 1660-00-942-8559?

NSN 1660-00-942-8559 is a Ring,orific,manifol, manufactured by Avox Systems Inc Dba Avox Systems Inc, classified under FSC 1660 (No Item Name Available). Status: active.

What are the part numbers for NSN 1660-00-942-8559?

NSN 1660-00-942-8559 has 1 cross-referenced part number: 20633 (Avox Systems Inc Dba Avox Systems Inc).

What NSN replaces 1660-00-942-8559?

There are 6 known substitutes for 1660-00-942-8559: 1440-00-063-4394, 5133-00-224-4027, 5340-00-322-0629 and 3 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com