PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

17513Washer,flat

Ashcroft Inc Dba Heise · NSN 5310-00-391-8391 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-391-8391 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-391-8391. Primary manufacturer part number: 17513.
Features
  • Washer,flat — FSC 5310
  • Overall Diameter: 3.250 INCHES NOMINAL IN
  • Hole Diameter: 0.625 INCHES NOMINAL IN
  • Material: STEEL OVERALL
  • Center Hole Shape Style: ROUND
  • Thickness: 0.734 INCHES NOMINAL IN
  • Peripheral Shape Style: ROUND
  • Cross-Sectional Shape Style: RECTANGULAR
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-391-8391, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Ashcroft Inc Dba Heise. 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
NSN5310-00-391-8391
Primary Part Number17513
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerAshcroft Inc Dba Heise
StatusACTIVE
Overall Diameter3.250 INCHES NOMINAL IN
Hole Diameter0.625 INCHES NOMINAL IN
MaterialSTEEL OVERALL
Center Hole Shape StyleROUND
Thickness0.734 INCHES NOMINAL IN
Peripheral Shape StyleROUND
Cross-Sectional Shape StyleRECTANGULAR
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
3110-00-100-6168 INTERCHANGEABLE
Ball,bearing
5310-00-176-8116175-13 INTERCHANGEABLE
Nut,plain,slotted,hexagon
Goodrich Corporation
5330-00-492-885617513 INTERCHANGEABLE
Retainer,packing
Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
6110-00-499-7054 INTERCHANGEABLE
Regulator,voltage
4710-00-756-085617513 INTERCHANGEABLE
Tube Assembly,metal
Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp.
5355-00-936-618310607686-3 INTERCHANGEABLE
Knob
Us Army Aviation and Missile Command
5950-01-035-886017513 INTERCHANGEABLE
Reactor
Unitron, Lp Dba Unitron Power Systems, Lp ; Atlas Marine Systems
6150-01-121-7893ECM-513 INTERCHANGEABLE
Cable Assembly,power,electrical
Electri-Cord Mfg Co Inc
5305-01-127-099617513 INTERCHANGEABLE
Thumbscrew
Vortox Company
3030-01-435-719417513 INTERCHANGEABLE
Belting,v
Gates Corporation
Cross-Reference Index
Part NumberManufacturer
17513 PRIMARY Ashcroft Inc Dba Heise (USA)
Related Parts
3110-00-100-6168INTERCHANGEABLE
BALL,BEARING
5310-00-176-8116INTERCHANGEABLE
NUT,PLAIN,SLOTTED,HEXAGON
175-13
5330-00-492-8856INTERCHANGEABLE
RETAINER,PACKING
17513
6110-00-499-7054INTERCHANGEABLE
REGULATOR,VOLTAGE
4710-00-756-0856INTERCHANGEABLE
TUBE ASSEMBLY,METAL
17513
5355-00-936-6183INTERCHANGEABLE
KNOB
10607686-3
5950-01-035-8860INTERCHANGEABLE
REACTOR
17513
6150-01-121-7893INTERCHANGEABLE
CABLE ASSEMBLY,POWER,ELECTRICAL
ECM-513
5305-01-127-0996INTERCHANGEABLE
THUMBSCREW
17513
3030-01-435-7194INTERCHANGEABLE
BELTING,V
17513

Frequently Asked Questions

What is NSN 5310-00-391-8391?

NSN 5310-00-391-8391 is a Washer,flat, manufactured by Ashcroft Inc Dba Heise, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-391-8391?

NSN 5310-00-391-8391 has 1 cross-referenced part number: 17513 (Ashcroft Inc Dba Heise).

What NSN replaces 5310-00-391-8391?

There are 10 known substitutes for 5310-00-391-8391: 3110-00-100-6168, 5310-00-176-8116, 5330-00-492-8856 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 17513?

Key specifications for 17513: Overall Diameter: 3.250 INCHES NOMINAL IN; Hole Diameter: 0.625 INCHES NOMINAL IN; Material: STEEL OVERALL; Center Hole Shape Style: ROUND. 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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