PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A6588Washer,shouldered

Eaton Aerospace Llc Dba Eaton Inoac Div Fuel & Motion Control Systems Division · NSN 5310-00-709-6573 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-709-6573 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-709-6573. Primary manufacturer part number: A6588.
Features
  • Washer,shouldered — FSC 5310
  • Material: STEEL COMP 4130 OVERALL
  • Material Document and Classification: AMS 6431 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Outside Diameter: 2.188 INCHES NOMINAL IN
  • Hardness Rating: 32.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM
  • Shoulder Height: 0.266 INCHES NOMINAL IN
  • Material Thickness: 0.046 INCHES NOMINAL IN
  • Style Designator: SHOULDERED
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 4130 Overall construction
General Description

The Washer,shouldered, cataloged under National Stock Number 5310-00-709-6573, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Eaton Aerospace Llc Dba Eaton Inoac Div Fuel & Motion Control Systems Division. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-709-6573
Primary Part NumberA6588
Item NameWasher,shouldered
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerEaton Aerospace Llc Dba Eaton Inoac Div Fuel & Motion Control Systems Division
StatusACTIVE
MaterialSTEEL COMP 4130 OVERALL
Material Document and ClassificationAMS 6431 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Outside Diameter2.188 INCHES NOMINAL IN
Hardness Rating32.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM
Shoulder Height0.266 INCHES NOMINAL IN
Material Thickness0.046 INCHES NOMINAL IN
Style DesignatorSHOULDERED
Shoulder Diameter2.062 INCHES NOMINAL IN
Hole Diameter1.890 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5999-00-249-8712 INTERCHANGEABLE
Cap,electrical
6220-00-326-5588A6588 INTERCHANGEABLE
Worm and Shaft Assy
Grimes Aerospace Company
4820-00-588-2726A-6588 INTERCHANGEABLE
Disk,valve
Anderson Greenwood Lp Dba Anderson Greenwood Crosby
5330-00-599-445317-13-5 INTERCHANGEABLE
Gasket
Trailmobile Inc Sub of the Pullman Co
Cross-Reference Index
Part NumberManufacturer
A6588 Eaton Motor Site (USA)
A6588 PRIMARY Eaton Aerospace Llc Dba Eaton Inoac Div Fuel & Motion Control Systems Division (USA)
Related Parts
5999-00-249-8712INTERCHANGEABLE
CAP,ELECTRICAL
6220-00-326-5588INTERCHANGEABLE
WORM AND SHAFT ASSY
A6588
4820-00-588-2726INTERCHANGEABLE
DISK,VALVE
A-6588
5330-00-599-4453INTERCHANGEABLE
GASKET
17-13-5

Frequently Asked Questions

What is NSN 5310-00-709-6573?

NSN 5310-00-709-6573 is a Washer,shouldered, manufactured by Eaton Aerospace Llc Dba Eaton Inoac Div Fuel & Motion Control Systems Division, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-709-6573?

NSN 5310-00-709-6573 has 2 cross-referenced part numbers: A6588 (Eaton Motor Site), A6588 (Eaton Aerospace Llc Dba Eaton Inoac Div Fuel & Motion Control Systems Division).

What NSN replaces 5310-00-709-6573?

There are 4 known substitutes for 5310-00-709-6573: 5999-00-249-8712, 6220-00-326-5588, 4820-00-588-2726 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A6588?

Key specifications for A6588: Material: STEEL COMP 4130 OVERALL; Material Document and Classification: AMS 6431 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 2.188 INCHES NOMINAL IN; Hardness Rating: 32.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM. 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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