PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

6997Ring,piston

Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor · NSN 4310-00-062-4353 · FSC 4310 · No Item Name Available
Verified by PartsTable
NSN 4310-00-062-4353 — this item is cataloged by the U.S. Government under National Stock Number 4310-00-062-4353. Primary manufacturer part number: 6997.
Features
  • Ring,piston — FSC 4310
  • Standard Bore Diameter: 3.250 INCHES IN
  • Ring Style: CONCENTRIC
  • Radial Wall Thickness: 0.1370 INCHES MINIMUM AND 0.1470 INCHES MAXIMUM IN
  • Material: IRON OVERALL
  • Surface Treatment: PHOSPHATE MANGANESE OVERALL
  • Cross-Sectional Shape Style: STRAIGHT FACE, BOTTOM RELIEF
  • Joint Style: VERTICAL JOINT
Applications
  • Applications requiring Iron Overall construction
General Description

The Ring,piston, cataloged under National Stock Number 4310-00-062-4353, 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 7 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
NSN4310-00-062-4353
Primary Part Number6997
Item NameRing,piston
FSC / FSG4310 / 43 — No Item Name Available
ManufacturerQuincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor
StatusACTIVE
Standard Bore Diameter3.250 INCHES IN
Ring StyleCONCENTRIC
Radial Wall Thickness0.1370 INCHES MINIMUM AND 0.1470 INCHES MAXIMUM IN
MaterialIRON OVERALL
Surface TreatmentPHOSPHATE MANGANESE OVERALL
Cross-Sectional Shape StyleSTRAIGHT FACE, BOTTOM RELIEF
Joint StyleVERTICAL JOINT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5940-00-180-7956699-GP-07 INTERCHANGEABLE
Terminal Board
Regal Beloit America, Inc
5930-00-356-2299 INTERCHANGEABLE
Switch,rotary
4730-00-365-65786997 INTERCHANGEABLE
Strainer,sediment
Westinghouse Air Brake Technologies Corp Dba Westinghouse Air Brake Technologies Corp
5935-00-477-9303BT49951 INTERCHANGEABLE
Shell,electrical Connector
Thermo Electric Company Inc. Dba Thermo Electric Company
5305-00-485-82096997 INTERCHANGEABLE
Screw,cap,hexagon Head
Moog Military Aircraft Llc
2530-00-545-5394F11330 INTERCHANGEABLE
Parts Kit,hydraulic Brake Wheel
Federal Mogul Corp Sub Wagner Brake Moog Automotive Div
5950-00-593-04495904763 INTERCHANGEABLE
Transformer,radio Frequency
Bae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems
3040-00-759-0799 INTERCHANGEABLE
Cylinder Assembly,actuating,line
5342-00-958-95996997 INTERCHANGEABLE
Plate
King Engineering Corporation Dba King-Gage Systems
1005-01-658-51446997 INTERCHANGEABLE
Barrel,pistol
Glock, Inc.
Cross-Reference Index
Part NumberManufacturer
6997 PRIMARY Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor (USA)
Related Parts
5940-00-180-7956INTERCHANGEABLE
TERMINAL BOARD
699-GP-07
5930-00-356-2299INTERCHANGEABLE
SWITCH,ROTARY
4730-00-365-6578INTERCHANGEABLE
STRAINER,SEDIMENT
6997
5935-00-477-9303INTERCHANGEABLE
SHELL,ELECTRICAL CONNECTOR
BT49951
5305-00-485-8209INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
6997
2530-00-545-5394INTERCHANGEABLE
PARTS KIT,HYDRAULIC BRAKE WHEEL
F11330
5950-00-593-0449INTERCHANGEABLE
TRANSFORMER,RADIO FREQUENCY
5904763
3040-00-759-0799INTERCHANGEABLE
CYLINDER ASSEMBLY,ACTUATING,LINE
5342-00-958-9599INTERCHANGEABLE
PLATE
6997
1005-01-658-5144INTERCHANGEABLE
BARREL,PISTOL
6997

Frequently Asked Questions

What is NSN 4310-00-062-4353?

NSN 4310-00-062-4353 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: active.

What are the part numbers for NSN 4310-00-062-4353?

NSN 4310-00-062-4353 has 1 cross-referenced part number: 6997 (Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor).

What NSN replaces 4310-00-062-4353?

There are 10 known substitutes for 4310-00-062-4353: 5940-00-180-7956, 5930-00-356-2299, 4730-00-365-6578 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 6997?

Key specifications for 6997: Standard Bore Diameter: 3.250 INCHES IN; Ring Style: CONCENTRIC; Radial Wall Thickness: 0.1370 INCHES MINIMUM AND 0.1470 INCHES MAXIMUM IN; End Item Identification: LOGISTICS SUPPORT VESSEL. 9 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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