PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

55-22061-18Ring,wearing

Euramco Safety Inc · NSN 4320-00-398-7799 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-00-398-7799 — this item is cataloged by the U.S. Government under National Stock Number 4320-00-398-7799. Primary manufacturer part number: 55-22061-18.
Features
  • Ring,wearing — FSC 4320
  • Corner Shape: SQUARE OUTSIDE RIGHT CORNER
  • Corner Shape: SQUARE OUTSIDE LEFT CORNER
  • Material: NICKEL ALLOY
  • Left Side Flange Thickness: 0.319 INCHES NOMINAL IN
  • Smallest External Anchor Flange Radius: 3.008 INCHES NOMINAL IN
  • Distance Between Flanges: 1.035 INCHES NOMINAL IN
  • Internal Flange Inside Diameter: 4.365 INCHES NOMINAL IN
Applications
  • Applications requiring Nickel Alloy construction
General Description

The Ring,wearing, cataloged under National Stock Number 4320-00-398-7799, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Euramco Safety Inc. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 4 manufacturers, 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
NSN4320-00-398-7799
Primary Part Number55-22061-18
Item NameRing,wearing
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerEuramco Safety Inc
StatusACTIVE
Corner ShapeSQUARE OUTSIDE RIGHT CORNER
Corner ShapeSQUARE OUTSIDE LEFT CORNER
MaterialNICKEL ALLOY
Left Side Flange Thickness0.319 INCHES NOMINAL IN
Smallest External Anchor Flange Radius3.008 INCHES NOMINAL IN
Distance Between Flanges1.035 INCHES NOMINAL IN
Internal Flange Inside Diameter4.365 INCHES NOMINAL IN
Corner ShapeSQUARE INSIDE LEFT CORNER
Internal Flange Width0.730 INCHES NOMINAL IN
Body Inside Diameter5.492 INCHES NOMINAL IN
Corner ShapeROUND INSIDE RIGHT CORNER
Right Side Flange Thickness0.314 INCHES NOMINAL IN
End to Flange Distance1.352 INCHES NOMINAL IN
Largest External Anchor Flange Radius3.126 INCHES NOMINAL IN
Corner Radius0.142 INCHES NOMINAL INSIDE RIGHT CORNER IN
Distance From End0.496 INCHES NOMINAL IN
Body Outside Diameter5.993 INCHES NOMINAL IN
Body StyleINTERNAL FLANGE W/EXTERNAL LOCKING FLANGE
Distance Below Centerline0.145 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5962-00-348-2541 INTERCHANGEABLE
Microcircuit,digital
2930-00-354-6326101-39 INTERCHANGEABLE
Impeller,water Pump,engine Cooli
Dresser Industries Inc Leroi Div
4730-00-359-309610139 INTERCHANGEABLE
Elbow,pipe to Tube
Mitsubishi Caterpillar Forklift America, Inc
5136-00-729-567554232 INTERCHANGEABLE
Tap,thread Cutting
Tapco Cutting Tools Inc
5950-00-879-3440SM-C-596629-1 INTERCHANGEABLE
Transformer,audio Frequency
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
6695-00-924-074710139 INTERCHANGEABLE
Transducer,motional Pickup
Celtech Corporation Div Use CAGE 65552 for All Orders
5905-00-989-4889J INTERCHANGEABLE
Resistor,variable,nonwire Wound,
Rockwell Automation, Inc. Dba Rockwell Automation
4820-01-178-7159111-204-030-139-000 INTERCHANGEABLE
Disk,valve
Emerson Automation Solutions Final Control Us Lp
5995-01-537-445310139-2 INTERCHANGEABLE
Cable Assembly,radio Frequency
Megaphase Llc
5995-01-537-447410139-3 INTERCHANGEABLE
Cable Assembly,radio Frequency
Megaphase Llc
Cross-Reference Index
Part NumberManufacturer
55-22061-18 PRIMARY Euramco Safety Inc (USA)
12871P PRIMARY Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA)
10139 PRIMARY Rps-Fl, Inc. Dba Rps Inc (USA)
884838-1PH Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
12871P Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
55-2206-18 Euramco Safety Inc (USA)
Related Parts
5962-00-348-2541INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
2930-00-354-6326INTERCHANGEABLE
IMPELLER,WATER PUMP,ENGINE COOLI
101-39
4730-00-359-3096INTERCHANGEABLE
ELBOW,PIPE TO TUBE
10139
5136-00-729-5675INTERCHANGEABLE
TAP,THREAD CUTTING
54232
5950-00-879-3440INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
SM-C-596629-1
6695-00-924-0747INTERCHANGEABLE
TRANSDUCER,MOTIONAL PICKUP
10139
5905-00-989-4889INTERCHANGEABLE
RESISTOR,VARIABLE,NONWIRE WOUND,
J
4820-01-178-7159INTERCHANGEABLE
DISK,VALVE
111-204-030-139-000
5995-01-537-4453INTERCHANGEABLE
CABLE ASSEMBLY,RADIO FREQUENCY
10139-2
5995-01-537-4474INTERCHANGEABLE
CABLE ASSEMBLY,RADIO FREQUENCY
10139-3
5995-01-551-5569INTERCHANGEABLE
CABLE ASSEMBLY,RADIO FREQUENCY
10139-4
5995-01-587-7706INTERCHANGEABLE
CABLE ASSEMBLY,RADIO FREQUENCY
10139-13C

Frequently Asked Questions

What is NSN 4320-00-398-7799?

NSN 4320-00-398-7799 is a Ring,wearing, manufactured by Euramco Safety Inc, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-00-398-7799?

NSN 4320-00-398-7799 has 6 cross-referenced part numbers: 55-22061-18 (Euramco Safety Inc), 12871P (Curtiss-Wright Electro-Mechanical Corporation Div Epd), 10139 (Rps-Fl, Inc. Dba Rps Inc), 884838-1PH (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging), 12871P (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging) and 1 more.

What NSN replaces 4320-00-398-7799?

There are 12 known substitutes for 4320-00-398-7799: 5962-00-348-2541, 2930-00-354-6326, 4730-00-359-3096 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 55-22061-18?

Key specifications for 55-22061-18: Corner Shape: SQUARE OUTSIDE RIGHT CORNER; Corner Shape: SQUARE OUTSIDE LEFT CORNER; Material: NICKEL ALLOY; Left Side Flange Thickness: 0.319 INCHES NOMINAL IN. 20 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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