PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

W7873PC185Ring,piston

Joy Mfg Co Air Power Group Michigan City Plant · NSN 4310-00-173-5407 · FSC 4310 · No Item Name Available
Verified by PartsTable
NSN 4310-00-173-5407 — this item is cataloged by the U.S. Government under National Stock Number 4310-00-173-5407. Primary manufacturer part number: W7873PC185.
Features
  • Ring,piston — FSC 4310
  • Joint Style: VERTICAL JOINT
  • Cross-Sectional Shape Style: STRAIGHT FACE, DOUBLE SCRAPER, VENTILATED OIL CONTROL
  • Ring Style: CONCENTRIC
  • Radial Wall Thickness: 0.1790 INCHES MINIMUM AND 0.1890 INCHES MAXIMUM IN
  • Oil Passage Type and Quantity: 12 HOLE HORIZONTALLY THROUGH RING
  • Standard Bore Diameter: 4.500 INCHES IN
  • Material: STEEL EXPANDER
Applications
  • Applications requiring Steel Expander construction
General Description

The Ring,piston, cataloged under National Stock Number 4310-00-173-5407, is classified within Federal Supply Class 4310 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Joy Mfg Co Air Power Group Michigan City Plant. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4310-00-173-5407
Primary Part NumberW7873PC185
Item NameRing,piston
FSC / FSG4310 / 43 — No Item Name Available
ManufacturerJoy Mfg Co Air Power Group Michigan City Plant
StatusCANCELLED
Joint StyleVERTICAL JOINT
Cross-Sectional Shape StyleSTRAIGHT FACE, DOUBLE SCRAPER, VENTILATED OIL CONTROL
Ring StyleCONCENTRIC
Radial Wall Thickness0.1790 INCHES MINIMUM AND 0.1890 INCHES MAXIMUM IN
Oil Passage Type and Quantity12 HOLE HORIZONTALLY THROUGH RING
Standard Bore Diameter4.500 INCHES IN
MaterialSTEEL EXPANDER
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 8
9540-00-197-9865 INTERCHANGEABLE
Channel,structural
4820-00-482-57822645 INTERCHANGEABLE
Diaphragm,valve,flat
Tescom Corp Dba Tescom Div Tescom
9540-00-542-2737 INTERCHANGEABLE
Channel,structural
5970-00-960-88602645 INTERCHANGEABLE
Insulator,standoff
Halsit Holdings Llc Div Halsit Holdings, Llc Dba Abbatron
4820-01-275-41602645 INTERCHANGEABLE
Valve,stop-Check
Hunt Valve Company, Inc.
6530-01-321-55872410C INTERCHANGEABLE
Light,surgical,ceiling
Getinge Usa Inc
4820-01-340-4139264-5 INTERCHANGEABLE
Disk,valve
Anderson Greenwood Lp Dba Anderson Greenwood Crosby
6130-01-394-01202645 INTERCHANGEABLE
Power Supply
Modular Devices Inc Dba Modular Devices Inc
Cross-Reference Index
Part NumberManufacturer
W7873PC185 Joy Mfg Co Air Power Group Michigan City Plant (USA)
RC330-11-1690PC2645 Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor (USA)
38008W Joy Mfg Co Air Power Group Michigan City Plant (USA)
2645 Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor (USA)
38008W Joy Global Underground Mining Llc (USA)
31631W Joy Global Underground Mining Llc (USA)
W7873PC185 Joy Global Underground Mining Llc (USA)
31631W Joy Mfg Co Air Power Group Michigan City Plant (USA)
4SC1067 Striegel Supply, Inc. Dba Striegel Supply Inc (USA)
Related Parts
9540-00-197-9865INTERCHANGEABLE
CHANNEL,STRUCTURAL
4820-00-482-5782INTERCHANGEABLE
DIAPHRAGM,VALVE,FLAT
2645
9540-00-542-2737INTERCHANGEABLE
CHANNEL,STRUCTURAL
5970-00-960-8860INTERCHANGEABLE
INSULATOR,STANDOFF
2645
4820-01-275-4160INTERCHANGEABLE
VALVE,STOP-CHECK
2645
6530-01-321-5587INTERCHANGEABLE
LIGHT,SURGICAL,CEILING
2410C
4820-01-340-4139INTERCHANGEABLE
DISK,VALVE
264-5
6130-01-394-0120INTERCHANGEABLE
POWER SUPPLY
2645

Frequently Asked Questions

What is NSN 4310-00-173-5407?

NSN 4310-00-173-5407 is a Ring,piston, manufactured by Joy Mfg Co Air Power Group Michigan City Plant, classified under FSC 4310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4310-00-173-5407?

NSN 4310-00-173-5407 has 9 cross-referenced part numbers: W7873PC185 (Joy Mfg Co Air Power Group Michigan City Plant), RC330-11-1690PC2645 (Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor), 38008W (Joy Mfg Co Air Power Group Michigan City Plant), 2645 (Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor), 38008W (Joy Global Underground Mining Llc) and 4 more.

What NSN replaces 4310-00-173-5407?

There are 8 known substitutes for 4310-00-173-5407: 9540-00-197-9865, 4820-00-482-5782, 9540-00-542-2737 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of W7873PC185?

Key specifications for W7873PC185: Joint Style: VERTICAL JOINT; Cross-Sectional Shape Style: STRAIGHT FACE, DOUBLE SCRAPER, VENTILATED OIL CONTROL; Overall Width: 0.1865 INCHES NOMINAL IN; Ring Style: CONCENTRIC. 8 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4310-00-173-5407 still in active supply?

NSN 4310-00-173-5407 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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