PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

820BCWasher,lock

Microdot Inc Everlock Chicago Div · NSN 5310-00-022-5843 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-022-5843 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-022-5843. Primary manufacturer part number: 820BC.
Features
  • Washer,lock — FSC 5310
  • Material Thickness: 0.018 INCHES MINIMUM AND 0.023 INCHES MAXIMUM IN
  • Hole Diameter: 0.168 INCHES MINIMUM AND 0.176 INCHES MAXIMUM IN
  • Outside Diameter: 0.325 INCHES MINIMUM AND 0.340 INCHES MAXIMUM IN
  • Style Designator: FLAT INTERNAL TEETH
  • 5 verified cross-references
  • Primary manufacturer: Microdot Inc Everlock Chicago Div
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Washer,lock, cataloged under National Stock Number 5310-00-022-5843, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Microdot Inc Everlock Chicago Div. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-022-5843
Primary Part Number820BC
Item NameWasher,lock
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerMicrodot Inc Everlock Chicago Div
StatusACTIVE
Material Thickness0.018 INCHES MINIMUM AND 0.023 INCHES MAXIMUM IN
Hole Diameter0.168 INCHES MINIMUM AND 0.176 INCHES MAXIMUM IN
Outside Diameter0.325 INCHES MINIMUM AND 0.340 INCHES MAXIMUM IN
Style DesignatorFLAT INTERNAL TEETH
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
6940-00-382-9265225843 INTERCHANGEABLE
Module,control
Moog Inc.
3110-00-554-3246 INTERCHANGEABLE
Bearing,ball,annular
Cross-Reference Index
Part NumberManufacturer
820BC Microdot Inc Everlock Chicago Div (USA)
225843 General Motors Corp (USA)
219-7N Agilent Technologies, Inc. Div Agilent Technologies Headquarters (USA)
MS35333-89 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
219-7N Hewlett-Packard Company Dba HP (USA)
Related Parts
6940-00-382-9265INTERCHANGEABLE
MODULE,CONTROL
225843
3110-00-554-3246INTERCHANGEABLE
BEARING,BALL,ANNULAR

Frequently Asked Questions

What is NSN 5310-00-022-5843?

NSN 5310-00-022-5843 is a Washer,lock, manufactured by Microdot Inc Everlock Chicago Div, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-022-5843?

NSN 5310-00-022-5843 has 5 cross-referenced part numbers: 820BC (Microdot Inc Everlock Chicago Div), 225843 (General Motors Corp), 219-7N (Agilent Technologies, Inc. Div Agilent Technologies Headquarters), MS35333-89 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), 219-7N (Hewlett-Packard Company Dba HP).

What NSN replaces 5310-00-022-5843?

There are 2 known substitutes for 5310-00-022-5843: 6940-00-382-9265, 3110-00-554-3246. Verify interchangeability with system specifications before substitution.

What are the specifications of 820BC?

Key specifications for 820BC: Material Thickness: 0.018 INCHES MINIMUM AND 0.023 INCHES MAXIMUM IN; Hole Diameter: 0.168 INCHES MINIMUM AND 0.176 INCHES MAXIMUM IN; Outside Diameter: 0.325 INCHES MINIMUM AND 0.340 INCHES MAXIMUM IN; Style Designator: FLAT INTERNAL TEETH. 4 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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