PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

63686Washer,flat

Hilton Seafoods Co Inc Government Supply Div · NSN 5310-00-290-9958 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-290-9958 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-290-9958. Primary manufacturer part number: 63686.
Features
  • Washer,flat — FSC 5310
  • Hole Diameter: 0.375 INCHES NOMINAL IN
  • Overall Diameter: 0.828 INCHES NOMINAL IN
  • Thickness: 0.125 INCHES NOMINAL IN
  • Peripheral Shape Style: ROUND
  • Cross-Sectional Shape Style: RECTANGULAR
  • Center Hole Shape Style: ROUND
  • Material: PLASTIC OVERALL
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Plastic Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-290-9958, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Hilton Seafoods Co Inc Government Supply Div. 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-290-9958
Primary Part Number63686
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerHilton Seafoods Co Inc Government Supply Div
StatusACTIVE
Hole Diameter0.375 INCHES NOMINAL IN
Overall Diameter0.828 INCHES NOMINAL IN
Thickness0.125 INCHES NOMINAL IN
Peripheral Shape StyleROUND
Cross-Sectional Shape StyleRECTANGULAR
Center Hole Shape StyleROUND
MaterialPLASTIC OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
4820-00-288-75682/CL.125/SIZE 1-1/2 IN INTERCHANGEABLE
Valve,gate
Manufacturers Standardization Society of the Valve and Fittings Industry Inc
4820-00-595-1845 INTERCHANGEABLE
Valve,globe
4820-00-595-1847B-100-2IN INTERCHANGEABLE
Valve,gate
Stockham Valves and Fittings Inc
Cross-Reference Index
Part NumberManufacturer
63686 Hilton Seafoods Co Inc Government Supply Div (USA)
Related Parts
4820-00-288-7568INTERCHANGEABLE
VALVE,GATE
2/CL.125/SIZE 1-1/2 IN
4820-00-595-1845INTERCHANGEABLE
VALVE,GLOBE
4820-00-595-1847INTERCHANGEABLE
VALVE,GATE
B-100-2IN

Frequently Asked Questions

What is NSN 5310-00-290-9958?

NSN 5310-00-290-9958 is a Washer,flat, manufactured by Hilton Seafoods Co Inc Government Supply Div, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-290-9958?

NSN 5310-00-290-9958 has 1 cross-referenced part number: 63686 (Hilton Seafoods Co Inc Government Supply Div).

What NSN replaces 5310-00-290-9958?

There are 3 known substitutes for 5310-00-290-9958: 4820-00-288-7568, 4820-00-595-1845, 4820-00-595-1847. Verify interchangeability with system specifications before substitution.

What are the specifications of 63686?

Key specifications for 63686: Hole Diameter: 0.375 INCHES NOMINAL IN; Overall Diameter: 0.828 INCHES NOMINAL IN; Thickness: 0.125 INCHES NOMINAL IN; Peripheral 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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