PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

98019A330Washer,flat

Mcmaster-Carr Supply Co · NSN 5310-01-502-7714 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-502-7714 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-502-7714. Primary manufacturer part number: 98019A330.
Features
  • Washer,flat — FSC 5310
  • Material: STEEL CORROSION RESISTING OVERALL
  • Cross-Sectional Shape Style: RECTANGULAR
  • Surface Treatment: PASSIVATE OVERALL
  • Center Hole Shape Style: ROUND
  • Overall Diameter: 0.438 INCHES NOMINAL IN
  • Hardness Rating: 70.0 ROCKWELL C MINIMUM
  • Thickness: 0.036 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Corrosion Resisting Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-01-502-7714, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Mcmaster-Carr Supply Co. 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-502-7714
Primary Part Number98019A330
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerMcmaster-Carr Supply Co
StatusACTIVE
MaterialSTEEL CORROSION RESISTING OVERALL
Cross-Sectional Shape StyleRECTANGULAR
Surface TreatmentPASSIVATE OVERALL
Center Hole Shape StyleROUND
Overall Diameter0.438 INCHES NOMINAL IN
Hardness Rating70.0 ROCKWELL C MINIMUM
Thickness0.036 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN
Hole Diameter0.219 INCHES NOMINAL IN
Peripheral Shape StyleROUND
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
7640-00-172-86474400-003 INTERCHANGEABLE
Chart
Bird Electronic Corporation Div Bird Electronic Corp
5342-00-889-7268 INTERCHANGEABLE
Mount,resilient,weapon System
5915-01-480-81024400003 INTERCHANGEABLE
Filter,radio Frequency Interfere
Tusonix, Llc
Cross-Reference Index
Part NumberManufacturer
98019A330 PRIMARY Mcmaster-Carr Supply Co (USA)
4400003 901 D Llc Div Curtiss-Wright 901d (USA)
Related Parts
7640-00-172-8647INTERCHANGEABLE
CHART
4400-003
5342-00-889-7268INTERCHANGEABLE
MOUNT,RESILIENT,WEAPON SYSTEM
5915-01-480-8102INTERCHANGEABLE
FILTER,RADIO FREQUENCY INTERFERE
4400003

Frequently Asked Questions

What is NSN 5310-01-502-7714?

NSN 5310-01-502-7714 is a Washer,flat, manufactured by Mcmaster-Carr Supply Co, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-502-7714?

NSN 5310-01-502-7714 has 2 cross-referenced part numbers: 98019A330 (Mcmaster-Carr Supply Co), 4400003 (901 D Llc Div Curtiss-Wright 901d).

What NSN replaces 5310-01-502-7714?

There are 3 known substitutes for 5310-01-502-7714: 7640-00-172-8647, 5342-00-889-7268, 5915-01-480-8102. Verify interchangeability with system specifications before substitution.

What are the specifications of 98019A330?

Key specifications for 98019A330: End Item Identification: 5840014508126 AND 6110-01-532-1835, 100KW POWER DISTRIBUTION PANEL; LOGISTICS SUPPORT VESSEL; Material: STEEL CORROSION RESISTING OVERALL; Cross-Sectional Shape Style: RECTANGULAR; Surface Treatment: PASSIVATE OVERALL. 11 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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