PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

8642Piston,compressor

Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor · NSN 4310-01-312-6890 · FSC 4310 · No Item Name Available
Verified by PartsTable
NSN 4310-01-312-6890 — this item is cataloged by the U.S. Government under National Stock Number 4310-01-312-6890. Primary manufacturer part number: 8642.
Features
  • Piston,compressor — FSC 4310
  • Ring Groove Quantity: 3
  • Surface Finish: FINISHED
  • Pin Hole Bushing: NOT INCLUDED
  • Finished Size Designation: STANDARD
  • Diameter: 5.250 INCHES NOMINAL IN
  • 1 verified cross-reference
  • Primary manufacturer: Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor
Applications
  • Hydraulic and pneumatic systems
  • Industrial process pumping
  • Military vehicle hydraulics
General Description

The Piston,compressor, cataloged under National Stock Number 4310-01-312-6890, is classified within Federal Supply Class 4310 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor. Government technical data includes 5 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. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4310-01-312-6890
Primary Part Number8642
Item NamePiston,compressor
FSC / FSG4310 / 43 — No Item Name Available
ManufacturerQuincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor
StatusACTIVE
Ring Groove Quantity3
Surface FinishFINISHED
Pin Hole BushingNOT INCLUDED
Finished Size DesignationSTANDARD
Diameter5.250 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5950-00-165-90229-864-2 INTERCHANGEABLE
Coil,electrical
Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc
4730-00-859-3445839-131 INTERCHANGEABLE
Bushing,pipe
George Fischer Sloane, Inc.
7050-01-028-3412G300337-1 INTERCHANGEABLE
Converter,analog to Digital
L3harris Technologies, Inc Div Space & Airborne Systems
3030-01-085-10008642 INTERCHANGEABLE
Belt,v
Gates Corporation
6150-01-193-7973 INTERCHANGEABLE
Cable Assembly,special Purpose,e
5120-01-559-9274220585 INTERCHANGEABLE
Nozzle,caulking Gun
Prc - Desoto International, Inc. Dba Prc-Desoto International, Inc Div Asc-Indianapolis
5975-01-627-23358642 INTERCHANGEABLE
Adapter,electrical Conduit
Heyco Inc Dba Heyco Products
9390-01-701-87697100223187 INTERCHANGEABLE
Tape,protective,plastic
3m Company
Cross-Reference Index
Part NumberManufacturer
8642 PRIMARY Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor (USA)
Related Parts
5950-00-165-9022INTERCHANGEABLE
COIL,ELECTRICAL
9-864-2
4730-00-859-3445INTERCHANGEABLE
BUSHING,PIPE
839-131
7050-01-028-3412INTERCHANGEABLE
CONVERTER,ANALOG TO DIGITAL
G300337-1
3030-01-085-1000INTERCHANGEABLE
BELT,V
8642
6150-01-193-7973INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
5120-01-559-9274INTERCHANGEABLE
NOZZLE,CAULKING GUN
220585
5975-01-627-2335INTERCHANGEABLE
ADAPTER,ELECTRICAL CONDUIT
8642
9390-01-701-8769INTERCHANGEABLE
TAPE,PROTECTIVE,PLASTIC
7100223187

Frequently Asked Questions

What is NSN 4310-01-312-6890?

NSN 4310-01-312-6890 is a Piston,compressor, manufactured by Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor, classified under FSC 4310 (No Item Name Available). Status: active.

What are the part numbers for NSN 4310-01-312-6890?

NSN 4310-01-312-6890 has 1 cross-referenced part number: 8642 (Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor).

What NSN replaces 4310-01-312-6890?

There are 8 known substitutes for 4310-01-312-6890: 5950-00-165-9022, 4730-00-859-3445, 7050-01-028-3412 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 8642?

Key specifications for 8642: End Item Identification: 1905-01-154-1191 LANDING CRAFT UTILITY; Ring Groove Quantity: 3; Surface Finish: FINISHED; Pin Hole Bushing: NOT INCLUDED. 6 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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