PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

17056Pin,piston

Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Pump Division · NSN 4310-00-294-1884 · FSC 4310 · No Item Name Available
Verified by PartsTable
NSN 4310-00-294-1884 — this item is cataloged by the U.S. Government under National Stock Number 4310-00-294-1884. Primary manufacturer part number: 17056.
Features
  • Pin,piston — FSC 4310
  • Outside Diameter: 1.00130 INCHES MINIMUM AND 1.00150 INCHES MAXIMUM IN
  • Bore Style: INSIDE RADII STRAIGHT-THRU BORE
  • Material Document and Classification: FED STD 66 FED STD SINGLE MATERIAL RESPONSE OR AISI 1019 ASSN STD SINGLE MATERIAL RESPONSE OR SAE 1019 ASSN STD SINGLE MATERIAL RESPONSE
  • Material: STEEL COMP 1019
  • FSC Application Data: AIR COMPRESSOR
  • Bore Radius: 0.094 INCHES NOMINAL IN
  • Radius: 0.094 INCHES NOMINAL IN
Applications
  • Applications requiring Steel Comp 1019 construction
General Description

The Pin,piston, cataloged under National Stock Number 4310-00-294-1884, is classified within Federal Supply Class 4310 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Pump Division. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4310-00-294-1884
Primary Part Number17056
Item NamePin,piston
FSC / FSG4310 / 43 — No Item Name Available
ManufacturerParker-Hannifin Corporation Dba Pneutronics Div Hydraulic Pump Division
StatusACTIVE
Outside Diameter1.00130 INCHES MINIMUM AND 1.00150 INCHES MAXIMUM IN
Bore StyleINSIDE RADII STRAIGHT-THRU BORE
Material Document and ClassificationFED STD 66 FED STD SINGLE MATERIAL RESPONSE OR AISI 1019 ASSN STD SINGLE MATERIAL RESPONSE OR SAE 1019 ASSN STD SINGLE MATERIAL RESPONSE
MaterialSTEEL COMP 1019
FSC Application DataAIR COMPRESSOR
Bore Radius0.094 INCHES NOMINAL IN
Radius0.094 INCHES NOMINAL IN
Hole Diameter0.1360 INCHES NOMINAL IN
Body StyleRADII ENDS
Hole Arrangement StyleONE HOLE THRU PIN
Body Length4.5000 INCHES NOMINAL IN
Distance From Centerline of Hole to End of Pin0.750 INCHES NOMINAL IN
Metallic Hardness Rating62.0 NOMINAL ROCKWELL C
Casehardening IndicatorCASEHARDENED
Bore Diameter0.6250 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
3110-00-156-7674S95316 INTERCHANGEABLE
Bearing,roller,journal
Rbc Bearings Incorporated Div West Trenton Division
3110-00-418-260117056 INTERCHANGEABLE
Bearing,roller
Coffin Turbo Pump Inc
5999-00-523-7568 INTERCHANGEABLE
Contact,electrical
4710-00-768-973317056 INTERCHANGEABLE
Tube Assembly,metal
Solar Turbines Incorporated Dba Solar Turbines Incorporated
5330-00-901-074921262 INTERCHANGEABLE
Seal,piston
Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
5950-01-019-5297986142-1 INTERCHANGEABLE
Reactor
Raytheon Company Dba Raytheon
5331-01-035-038117056 INTERCHANGEABLE
O-Ring
James Walker & Co Ltd
5360-01-274-3012 INTERCHANGEABLE
Spring,helical,torsion
6515-01-590-8175201.790 INTERCHANGEABLE
Screw,bone
Depuy Synthes Sales Inc Dba Depuy Synthes Trauma Div Depuy Synthes Sales, Inc., D/b/a Depuy Synthes Trauma
5120-01-601-319217056 INTERCHANGEABLE
Key,socket Head Screw
Bondhus Corp
Cross-Reference Index
Part NumberManufacturer
17056 Leroi International Inc Dba Compair Leroi (USA)
17056 Compair Kellogg Div of Robertshaw Controls Co (USA)
17056 PRIMARY Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Pump Division (USA)
Related Parts
3110-00-156-7674INTERCHANGEABLE
BEARING,ROLLER,JOURNAL
S95316
3110-00-418-2601INTERCHANGEABLE
BEARING,ROLLER
17056
5999-00-523-7568INTERCHANGEABLE
CONTACT,ELECTRICAL
4710-00-768-9733INTERCHANGEABLE
TUBE ASSEMBLY,METAL
17056
5330-00-901-0749INTERCHANGEABLE
SEAL,PISTON
21262
5950-01-019-5297INTERCHANGEABLE
REACTOR
986142-1
5331-01-035-0381INTERCHANGEABLE
O-RING
17056
5360-01-274-3012INTERCHANGEABLE
SPRING,HELICAL,TORSION
6515-01-590-8175INTERCHANGEABLE
SCREW,BONE
201.790
5120-01-601-3192INTERCHANGEABLE
KEY,SOCKET HEAD SCREW
17056
4820-01-601-6045INTERCHANGEABLE
CAP,VALVE
1705-6

Frequently Asked Questions

What is NSN 4310-00-294-1884?

NSN 4310-00-294-1884 is a Pin,piston, manufactured by Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Pump Division, classified under FSC 4310 (No Item Name Available). Status: active.

What are the part numbers for NSN 4310-00-294-1884?

NSN 4310-00-294-1884 has 3 cross-referenced part numbers: 17056 (Leroi International Inc Dba Compair Leroi), 17056 (Compair Kellogg Div of Robertshaw Controls Co), 17056 (Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Pump Division).

What NSN replaces 4310-00-294-1884?

There are 11 known substitutes for 4310-00-294-1884: 3110-00-156-7674, 3110-00-418-2601, 5999-00-523-7568 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 17056?

Key specifications for 17056: Outside Diameter: 1.00130 INCHES MINIMUM AND 1.00150 INCHES MAXIMUM IN; Bore Style: INSIDE RADII STRAIGHT-THRU BORE; Material Document and Classification: FED STD 66 FED STD SINGLE MATERIAL RESPONSE OR AISI 1019 ASSN STD SINGLE MATERIAL RESPONSE OR SAE 1019 ASSN STD SINGLE MATERIAL RESPONSE; Material: STEEL COMP 1019. 16 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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