PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

66870Washer,spring Tension

Parker Hannifin Corporation Div Hydraulic Systems Division · NSN 5310-01-215-1657 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-215-1657 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-215-1657. Primary manufacturer part number: 66870.
Features
  • Washer,spring Tension — FSC 5310
  • Outside Diameter: 1.900 INCHES NOMINAL IN
  • Material: STEEL COMP 301 OVERALL
  • Hole Diameter: 1.580 INCHES NOMINAL IN
  • Material Thickness: 0.040 INCHES NOMINAL IN
  • Style Designator: SPRING TENSION
  • Material Document and Classification: QQ-S-766 CL 301 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
  • 1 verified cross-reference
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Mechanical energy storage
  • Vibration dampening
General Description

The Washer,spring Tension, cataloged under National Stock Number 5310-01-215-1657, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Parker Hannifin Corporation Div Hydraulic Systems Division. Government technical data includes 6 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-215-1657
Primary Part Number66870
Item NameWasher,spring Tension
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerParker Hannifin Corporation Div Hydraulic Systems Division
StatusACTIVE
Outside Diameter1.900 INCHES NOMINAL IN
MaterialSTEEL COMP 301 OVERALL
Hole Diameter1.580 INCHES NOMINAL IN
Material Thickness0.040 INCHES NOMINAL IN
Style DesignatorSPRING TENSION
Material Document and ClassificationQQ-S-766 CL 301 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
4730-00-188-35143152-4-3-8 INTERCHANGEABLE
Plug,pipe
Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division
5360-00-386-330766870 INTERCHANGEABLE
Spring,helical,compression
Cummins Inc.
5180-01-652-405166870 INTERCHANGEABLE
Tool Kit,small Arms
Barrett Firearms Manufacturing, Inc. Dba Barrett Firearms Manufacturing Inc
Cross-Reference Index
Part NumberManufacturer
66870 PRIMARY Parker Hannifin Corporation Div Hydraulic Systems Division (USA)
Related Parts
4730-00-188-3514INTERCHANGEABLE
PLUG,PIPE
3152-4-3-8
5360-00-386-3307INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
66870
5180-01-652-4051INTERCHANGEABLE
TOOL KIT,SMALL ARMS
66870

Frequently Asked Questions

What is NSN 5310-01-215-1657?

NSN 5310-01-215-1657 is a Washer,spring Tension, manufactured by Parker Hannifin Corporation Div Hydraulic Systems Division, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-215-1657?

NSN 5310-01-215-1657 has 1 cross-referenced part number: 66870 (Parker Hannifin Corporation Div Hydraulic Systems Division).

What NSN replaces 5310-01-215-1657?

There are 3 known substitutes for 5310-01-215-1657: 4730-00-188-3514, 5360-00-386-3307, 5180-01-652-4051. Verify interchangeability with system specifications before substitution.

What are the specifications of 66870?

Key specifications for 66870: Outside Diameter: 1.900 INCHES NOMINAL IN; Material: STEEL COMP 301 OVERALL; Hole Diameter: 1.580 INCHES NOMINAL IN; Material Thickness: 0.040 INCHES NOMINAL IN. 7 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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