PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

18019Ring

Ranco Inc Ranco Controls Div · NSN 6620-00-181-5966 · FSC 6620 · No Item Name Available
Verified by PartsTable
NSN 6620-00-181-5966 — this item is cataloged by the U.S. Government under National Stock Number 6620-00-181-5966. Primary manufacturer part number: 18019.
Features
  • Ring — FSC 6620
  • 2 verified cross-references
  • Primary manufacturer: Ranco Inc Ranco Controls Div
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Ring, cataloged under National Stock Number 6620-00-181-5966, is classified within Federal Supply Class 6620 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Ranco Inc Ranco Controls Div. This item has 2 commercial cross-references from 2 manufacturers, 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
FSC / FSG6620 — No Item Name Available (FSG 66)
ManufacturersRanco Inc Ranco Controls Div (CAGE 50992); Ranco Management Corp (CAGE 49742)
Technical Specifications
ParameterValue
NSN6620-00-181-5966
Primary Part Number18019
Item NameRing
FSC / FSG6620 / 66 — No Item Name Available
ManufacturerRanco Inc Ranco Controls Div
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5950-00-051-0347580R233H01 INTERCHANGEABLE
Reactor
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
5133-00-189-9264 INTERCHANGEABLE
Drill,twist
5365-00-205-956518019 INTERCHANGEABLE
Spacer,ring
Paccar Winch Inc Dba Paccar Winch Division
4320-00-232-567818019 INTERCHANGEABLE
Vane Set,rotary
Coffin Turbo Pump Inc
3455-00-239-5609INVOLUTE 30-4 INTERCHANGEABLE
Cutter,milling,involute Gear
F & D Tool Co Inc
5330-00-251-8535 INTERCHANGEABLE
Gasket
5905-00-324-63688107468 INTERCHANGEABLE
Resistor,variable,nonwire Wound,
Us Army Aviation and Missile Command
5930-00-874-30961801-9 INTERCHANGEABLE
Spring,pressure Swi
Janco Corporation Dba Janco Corp Div Mason Controls
5325-00-884-011418019 INTERCHANGEABLE
Ring,retaining
Sigma Tek, Inc.
5962-01-123-7993932820-400 INTERCHANGEABLE
Microcircuit,memory
Raytheon Company Dba Raytheon
Cross-Reference Index
Part NumberManufacturer
18019 PRIMARY Ranco Inc Ranco Controls Div (USA)
18019 Ranco Management Corp (USA)
Related Parts
5950-00-051-0347INTERCHANGEABLE
REACTOR
580R233H01
5133-00-189-9264INTERCHANGEABLE
DRILL,TWIST
5365-00-205-9565INTERCHANGEABLE
SPACER,RING
18019
4320-00-232-5678INTERCHANGEABLE
VANE SET,ROTARY
18019
3455-00-239-5609INTERCHANGEABLE
CUTTER,MILLING,INVOLUTE GEAR
INVOLUTE 30-4
5330-00-251-8535INTERCHANGEABLE
GASKET
5905-00-324-6368INTERCHANGEABLE
RESISTOR,VARIABLE,NONWIRE WOUND,
8107468
5930-00-874-3096INTERCHANGEABLE
SPRING,PRESSURE SWI
1801-9
5325-00-884-0114INTERCHANGEABLE
RING,RETAINING
18019
5962-01-123-7993INTERCHANGEABLE
MICROCIRCUIT,MEMORY
932820-400
5310-01-276-9777INTERCHANGEABLE
WASHER,FLAT
18019
6105-01-315-6022INTERCHANGEABLE
ARMATURE,MOTOR

Frequently Asked Questions

What is NSN 6620-00-181-5966?

NSN 6620-00-181-5966 is a Ring, manufactured by Ranco Inc Ranco Controls Div, classified under FSC 6620 (No Item Name Available). Status: active.

What are the part numbers for NSN 6620-00-181-5966?

NSN 6620-00-181-5966 has 2 cross-referenced part numbers: 18019 (Ranco Inc Ranco Controls Div), 18019 (Ranco Management Corp).

What NSN replaces 6620-00-181-5966?

There are 12 known substitutes for 6620-00-181-5966: 5950-00-051-0347, 5133-00-189-9264, 5365-00-205-9565 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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