PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1648Ring,piston

Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor · NSN 4310-00-173-5274 · FSC 4310 · No Item Name Available
Verified by PartsTable
NSN 4310-00-173-5274 — this item is cataloged by the U.S. Government under National Stock Number 4310-00-173-5274. Primary manufacturer part number: 1648.
Features
  • Ring,piston — FSC 4310
  • Standard Bore Diameter: 3.000 INCHES IN
  • Ring Style: CONCENTRIC
  • Material: IRON OVERALL
  • Joint Style: VERTICAL JOINT
  • Radial Wall Thickness: 0.1390 INCHES NOMINAL IN
  • Cross-Sectional Shape Style: PLAIN RECTANGULAR, STRAIGHT FACE
  • 3 verified cross-references
Applications
  • Applications requiring Iron Overall construction
General Description

The Ring,piston, cataloged under National Stock Number 4310-00-173-5274, 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 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4310-00-173-5274
Primary Part Number1648
Item NameRing,piston
FSC / FSG4310 / 43 — No Item Name Available
ManufacturerQuincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor
StatusCANCELLED
Standard Bore Diameter3.000 INCHES IN
Ring StyleCONCENTRIC
MaterialIRON OVERALL
Joint StyleVERTICAL JOINT
Radial Wall Thickness0.1390 INCHES NOMINAL IN
Cross-Sectional Shape StylePLAIN RECTANGULAR, STRAIGHT FACE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5310-00-021-97551045H INTERCHANGEABLE
Nut,plain,hexagon
Dorsey Trailers Inc
4820-00-172-83551648 INTERCHANGEABLE
Valve,safety Relief
Pneudraulics, Inc.
8135-00-239-16481648 INTERCHANGEABLE
Tag,shipping
American Packaging I, Inc.
4730-00-391-37539A6033 INTERCHANGEABLE
Fitting,lubrication
Napco International Llc Dba Napco International Inc
4820-00-473-12991710 INTERCHANGEABLE
Valve,safety Relief
Pneudraulics, Inc.
4820-00-859-37891648 INTERCHANGEABLE
Seat,valve
Lawler Manufacturing Company, Inc.
5950-00-928-3254D0T48 INTERCHANGEABLE
Transformer,audio Frequency
Magnetika Inc
3441-00-982-1729 INTERCHANGEABLE
Press Brake,power Operated
5910-01-055-2737 INTERCHANGEABLE
Capacitor,fixed,plastic Dielectr
5935-01-196-7114 INTERCHANGEABLE
Clamp,cable,electrical Connector
Cross-Reference Index
Part NumberManufacturer
1648 PRIMARY Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor (USA)
RC340-16-1686PC1648S Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor (USA)
1648S Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor (USA)
Related Parts
5310-00-021-9755INTERCHANGEABLE
NUT,PLAIN,HEXAGON
1045H
4820-00-172-8355INTERCHANGEABLE
VALVE,SAFETY RELIEF
1648
8135-00-239-1648INTERCHANGEABLE
TAG,SHIPPING
1648
4730-00-391-3753INTERCHANGEABLE
FITTING,LUBRICATION
9A6033
4820-00-473-1299INTERCHANGEABLE
VALVE,SAFETY RELIEF
1710
4820-00-859-3789INTERCHANGEABLE
SEAT,VALVE
1648
5950-00-928-3254INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
D0T48
3441-00-982-1729INTERCHANGEABLE
PRESS BRAKE,POWER OPERATED
5910-01-055-2737INTERCHANGEABLE
CAPACITOR,FIXED,PLASTIC DIELECTR
5935-01-196-7114INTERCHANGEABLE
CLAMP,CABLE,ELECTRICAL CONNECTOR
3810-01-498-0607INTERCHANGEABLE
CONNECTOR,ELECTRICAL,ROTARY
5616137
2540-01-576-6809INTERCHANGEABLE
LAV-R BALLISTIC INS
1648

Frequently Asked Questions

What is NSN 4310-00-173-5274?

NSN 4310-00-173-5274 is a Ring,piston, manufactured by Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor, classified under FSC 4310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4310-00-173-5274?

NSN 4310-00-173-5274 has 3 cross-referenced part numbers: 1648 (Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor), RC340-16-1686PC1648S (Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor), 1648S (Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor).

What NSN replaces 4310-00-173-5274?

There are 12 known substitutes for 4310-00-173-5274: 5310-00-021-9755, 4820-00-172-8355, 8135-00-239-1648 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1648?

Key specifications for 1648: Standard Bore Diameter: 3.000 INCHES IN; Ring Style: CONCENTRIC; Material: IRON OVERALL; Joint Style: VERTICAL JOINT. 7 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4310-00-173-5274 still in active supply?

NSN 4310-00-173-5274 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.
PartsTable Design LLC · partstable.com