PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

18320Ring,piston

Cooper Industries Inc Dba Cooper Tools · NSN 4310-01-394-4816 · FSC 4310 · No Item Name Available
Verified by PartsTable
NSN 4310-01-394-4816 — this item is cataloged by the U.S. Government under National Stock Number 4310-01-394-4816. Primary manufacturer part number: 18320.
Features
  • Ring,piston — FSC 4310
  • Material: STEEL OVERALL
  • Radial Wall Thickness: 0.6250 INCHES NOMINAL IN
  • Ring Style: CONCENTRIC
  • 1 verified cross-reference
  • Primary manufacturer: Cooper Industries Inc Dba Cooper Tools
Applications
  • Applications requiring Steel Overall construction
General Description

The Ring,piston, cataloged under National Stock Number 4310-01-394-4816, is classified within Federal Supply Class 4310 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Cooper Industries Inc Dba Cooper Tools. Government technical data includes 3 verified specifications, 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. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4310-01-394-4816
Primary Part Number18320
Item NameRing,piston
FSC / FSG4310 / 43 — No Item Name Available
ManufacturerCooper Industries Inc Dba Cooper Tools
StatusACTIVE
MaterialSTEEL OVERALL
Radial Wall Thickness0.6250 INCHES NOMINAL IN
Ring StyleCONCENTRIC
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5950-00-086-8785 INTERCHANGEABLE
Coil,radio Frequency
5935-00-244-9660AC1499 INTERCHANGEABLE
Connector,plug,electrical
Times Microwave Systems, Inc Dba Times Microwave Systems Inc Div Times Microwave Systems
5133-00-838-5300 INTERCHANGEABLE
Drill,twist
5950-00-998-4256546739 INTERCHANGEABLE
Reactor
Cae Usa Inc.
7125-01-006-755219-320 INTERCHANGEABLE
Cabinet,small Parts,storage
Akro-Mils
5962-01-076-7969932821-43 INTERCHANGEABLE
Microcircuit,memory
Raytheon Company Dba Raytheon
5950-01-104-8517 INTERCHANGEABLE
Reactor
5340-01-256-050118320 INTERCHANGEABLE
Cap,protective,dust and Moisture
Templeton Kenly and Co Inc
5905-01-396-75740183200004 INTERCHANGEABLE
Resistor,fixed,film
Riimic, Llc Dba Sunair Electronics
6540-01-443-536618320 INTERCHANGEABLE
Retinoscope
Welch Allyn, Inc.
Cross-Reference Index
Part NumberManufacturer
18320 Cooper Industries Inc Dba Cooper Tools (USA)
Related Parts
5950-00-086-8785INTERCHANGEABLE
COIL,RADIO FREQUENCY
5935-00-244-9660INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
AC1499
5133-00-838-5300INTERCHANGEABLE
DRILL,TWIST
5950-00-998-4256INTERCHANGEABLE
REACTOR
546739
7125-01-006-7552INTERCHANGEABLE
CABINET,SMALL PARTS,STORAGE
19-320
5962-01-076-7969INTERCHANGEABLE
MICROCIRCUIT,MEMORY
932821-43
5950-01-104-8517INTERCHANGEABLE
REACTOR
5340-01-256-0501INTERCHANGEABLE
CAP,PROTECTIVE,DUST AND MOISTURE
18320
5905-01-396-7574INTERCHANGEABLE
RESISTOR,FIXED,FILM
0183200004
6540-01-443-5366INTERCHANGEABLE
RETINOSCOPE
18320

Frequently Asked Questions

What is NSN 4310-01-394-4816?

NSN 4310-01-394-4816 is a Ring,piston, manufactured by Cooper Industries Inc Dba Cooper Tools, classified under FSC 4310 (No Item Name Available). Status: active.

What are the part numbers for NSN 4310-01-394-4816?

NSN 4310-01-394-4816 has 1 cross-referenced part number: 18320 (Cooper Industries Inc Dba Cooper Tools).

What NSN replaces 4310-01-394-4816?

There are 10 known substitutes for 4310-01-394-4816: 5950-00-086-8785, 5935-00-244-9660, 5133-00-838-5300 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 18320?

Key specifications for 18320: Material: STEEL OVERALL; Overall Width: 3.6250 INCHES NOMINAL IN; Radial Wall Thickness: 0.6250 INCHES NOMINAL IN; Ring Style: CONCENTRIC. 5 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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