PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

98-6642-00-705Washer,split

Hutchinson Aerospace & Industry, Inc. Dba Barry Wright Corp · NSN 5310-00-026-9902 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-026-9902 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-026-9902. Primary manufacturer part number: 98-6642-00-705.
Features
  • Washer,split — FSC 5310
  • Hole Diameter: 0.270 INCHES NOMINAL IN
  • Distance Across Split Opening: 0.185 INCHES NOMINAL IN
  • Outside Diameter: 0.561 INCHES NOMINAL IN
  • Material Thickness: 0.071 INCHES NOMINAL IN
  • Material: STEEL OVERALL
  • Style Designator: SPLIT
  • 4 verified cross-references
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Washer,split, cataloged under National Stock Number 5310-00-026-9902, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Hutchinson Aerospace & Industry, Inc. Dba Barry Wright Corp. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-026-9902
Primary Part Number98-6642-00-705
Item NameWasher,split
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerHutchinson Aerospace & Industry, Inc. Dba Barry Wright Corp
StatusACTIVE
Hole Diameter0.270 INCHES NOMINAL IN
Distance Across Split Opening0.185 INCHES NOMINAL IN
Outside Diameter0.561 INCHES NOMINAL IN
Material Thickness0.071 INCHES NOMINAL IN
MaterialSTEEL OVERALL
Style DesignatorSPLIT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
1285-00-070-81942468624PC2 INTERCHANGEABLE
Valve
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5905-00-513-9939 INTERCHANGEABLE
Resistor,fixed,wire Wound,induct
4820-01-293-506116642 INTERCHANGEABLE
Valve,globe
Clayton Manufacturing Company
4720-01-314-252038097-04200 INTERCHANGEABLE
Hose Assembly,nonmetallic
Danfoss Power Solutions II, Llc
5120-01-423-00711664-2 INTERCHANGEABLE
Mandrel,fastener Installation to
Howmet Global Fastening Systems Inc Div Rosan Products
6515-01-584-283094100G INTERCHANGEABLE
Support,arch
Der-Tex Corporation Dba Frelonic
2540-01-592-82261-664-2 INTERCHANGEABLE
Latch,door,vehicular
Eastern Co Div Eberhard Manufacturing
5330-01-696-624316642 INTERCHANGEABLE
Gasket
Kimberly Clark
Cross-Reference Index
Part NumberManufacturer
98-6642-00-705 PRIMARY Hutchinson Aerospace & Industry, Inc. Dba Barry Wright Corp (USA)
1-6642 PRIMARY Hutchinson Aerospace & Industry, Inc. Dba Barry Wright Corp (USA)
WA1337 Bae Systems Information and Electronic Systems Integration Inc. (USA)
567973 Stewart-Warner Corporation (USA)
Related Parts
1285-00-070-8194INTERCHANGEABLE
VALVE
2468624PC2
5905-00-513-9939INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND,INDUCT
4820-01-293-5061INTERCHANGEABLE
VALVE,GLOBE
16642
4720-01-314-2520INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
38097-04200
5120-01-423-0071INTERCHANGEABLE
MANDREL,FASTENER INSTALLATION TO
1664-2
6515-01-584-2830INTERCHANGEABLE
SUPPORT,ARCH
94100G
2540-01-592-8226INTERCHANGEABLE
LATCH,DOOR,VEHICULAR
1-664-2
5330-01-696-6243INTERCHANGEABLE
GASKET
16642

Frequently Asked Questions

What is NSN 5310-00-026-9902?

NSN 5310-00-026-9902 is a Washer,split, manufactured by Hutchinson Aerospace & Industry, Inc. Dba Barry Wright Corp, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-026-9902?

NSN 5310-00-026-9902 has 4 cross-referenced part numbers: 98-6642-00-705 (Hutchinson Aerospace & Industry, Inc. Dba Barry Wright Corp), 1-6642 (Hutchinson Aerospace & Industry, Inc. Dba Barry Wright Corp), WA1337 (Bae Systems Information and Electronic Systems Integration Inc.), 567973 (Stewart-Warner Corporation).

What NSN replaces 5310-00-026-9902?

There are 8 known substitutes for 5310-00-026-9902: 1285-00-070-8194, 5905-00-513-9939, 4820-01-293-5061 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 98-6642-00-705?

Key specifications for 98-6642-00-705: Hole Diameter: 0.270 INCHES NOMINAL IN; Distance Across Split Opening: 0.185 INCHES NOMINAL IN; Outside Diameter: 0.561 INCHES NOMINAL IN; Part Name Assigned by Controlling Agency: NAVY SPECIAL PROJECT. 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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