PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

30-180Ring,piston

Hardie-Tynes Co., Inc. · NSN 4310-00-343-6250 · FSC 4310 · No Item Name Available
Verified by PartsTable
NSN 4310-00-343-6250 — this item is cataloged by the U.S. Government under National Stock Number 4310-00-343-6250. Primary manufacturer part number: 30-180.
Features
  • Ring,piston — FSC 4310
  • Material: IRON OVERALL
  • Cross-Sectional Shape Style: PLAIN RECTANGULAR, TWO PIECE, STRAIGHT FACE
  • Joint Style: VERTICAL JOINT
  • Ring Style: CONCENTRIC
  • Standard Bore Diameter: 2.969 INCHES IN
  • Radial Wall Thickness: 0.1560 INCHES NOMINAL IN
  • FSC Application Data: AIR COMPRESSOR
Applications
  • Applications requiring Iron Overall construction
General Description

The Ring,piston, cataloged under National Stock Number 4310-00-343-6250, is classified within Federal Supply Class 4310 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Hardie-Tynes Co., Inc.. Government technical data includes 8 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. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4310-00-343-6250
Primary Part Number30-180
Item NameRing,piston
FSC / FSG4310 / 43 — No Item Name Available
ManufacturerHardie-Tynes Co., Inc.
StatusACTIVE
MaterialIRON OVERALL
Cross-Sectional Shape StylePLAIN RECTANGULAR, TWO PIECE, STRAIGHT FACE
Joint StyleVERTICAL JOINT
Ring StyleCONCENTRIC
Standard Bore Diameter2.969 INCHES IN
Radial Wall Thickness0.1560 INCHES NOMINAL IN
FSC Application DataAIR COMPRESSOR
Material Document and ClassificationQQ-I-652,CLASS 40 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
3110-00-100-05069121 INTERCHANGEABLE
Cup,tapered Roller Bearing
The Timken Corporation
2520-00-646-9686 INTERCHANGEABLE
Deflector,dirt and Liquid
2930-00-708-677730180DS INTERCHANGEABLE
Pump Assy,water Pum
Brinkley Technology Group Llc Dba Hercules Manufacturing
4720-00-989-6479SAE-J517-54-8 INTERCHANGEABLE
Hose,nonmetallic
Sae International Dba Sae International
5330-01-189-38863G1929 INTERCHANGEABLE
Cork and Rubber Strip
Caterpillar Inc Div Caterpillar Defense
2010-01-209-9652803-1385664, PC.13, SZ.9, N=.981 INTERCHANGEABLE
Bearing,stave Shaped
Naval Ship Systems Command
6685-01-602-393530-180 INTERCHANGEABLE
Assembly Trim Gauge
Konrad Marine Inc Div Konrad Marine
Cross-Reference Index
Part NumberManufacturer
30-180 Hardie-Tynes Co., Inc. (USA)
Related Parts
3110-00-100-0506INTERCHANGEABLE
CUP,TAPERED ROLLER BEARING
9121
2520-00-646-9686INTERCHANGEABLE
DEFLECTOR,DIRT AND LIQUID
2930-00-708-6777INTERCHANGEABLE
PUMP ASSY,WATER PUM
30180DS
4720-00-989-6479INTERCHANGEABLE
HOSE,NONMETALLIC
SAE-J517-54-8
5330-01-189-3886INTERCHANGEABLE
CORK AND RUBBER STRIP
3G1929
2010-01-209-9652INTERCHANGEABLE
BEARING,STAVE SHAPED
803-1385664, PC.13, SZ.9, N=.981
6685-01-602-3935INTERCHANGEABLE
ASSEMBLY TRIM GAUGE
30-180

Frequently Asked Questions

What is NSN 4310-00-343-6250?

NSN 4310-00-343-6250 is a Ring,piston, manufactured by Hardie-Tynes Co., Inc., classified under FSC 4310 (No Item Name Available). Status: active.

What are the part numbers for NSN 4310-00-343-6250?

NSN 4310-00-343-6250 has 1 cross-referenced part number: 30-180 (Hardie-Tynes Co., Inc.).

What NSN replaces 4310-00-343-6250?

There are 7 known substitutes for 4310-00-343-6250: 3110-00-100-0506, 2520-00-646-9686, 2930-00-708-6777 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 30-180?

Key specifications for 30-180: Material: IRON OVERALL; Cross-Sectional Shape Style: PLAIN RECTANGULAR, TWO PIECE, STRAIGHT FACE; Joint Style: VERTICAL JOINT; Overall Width: 0.2500 INCHES NOMINAL IN. 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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