PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

NAS1676C416Washer,lock

National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use · NSN 5310-00-262-3562 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-262-3562 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-262-3562. Primary manufacturer part number: NAS1676C416.
Features
  • Washer,lock — FSC 5310
  • Nondefinitive Spec/std Data: C CLASS
  • Hole Diameter: 0.255 INCHES MINIMUM AND 0.267 INCHES MAXIMUM IN
  • Material: STEEL COMP 301 OR STEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 303SE OR STEEL COMP 304 OR STEEL COMP 304L OR STEEL COMP 305 OR STEEL COMP 308 OR STEEL COMP 309 OR STEEL COMP 309S OR STEEL COMP 310 OR STEEL COMP 310S OR STEEL COMP 314 OR STEEL COMP 316 OR STEEL COMP 316L OR STEEL COMP 317 OR STEEL COMP 321 OR STEEL COMP 347 OR STEEL COMP 385 OR STEEL COMP 384 OR STEEL COMP 348 OVERALL
  • Departure From Cited Designator: AS MODIFIED BY DIM.
  • Hardness Rating: 35.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM
  • Style Designator: SPLIT HELICAL-RIGHT HAND
  • Specification/standard Data: 80205-NAS1676 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 301 or Steel Comp 302 or Steel Comp 303 or Steel Comp 303SE or Steel Comp 304 or Steel Comp 304l or Steel Comp 305 or Steel Comp 308 or Steel Comp 309 or Steel Comp 309s or Steel Comp 310 or Steel Comp 310s or Steel Comp 314 or Steel Comp 316 or Steel Comp 316l or Steel Comp 317 or Steel Comp 321 or Steel Comp 347 or Steel Comp 385 or Steel Comp 384 or Steel Comp 348 Overall construction
General Description

The Washer,lock, cataloged under National Stock Number 5310-00-262-3562, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-262-3562
Primary Part NumberNAS1676C416
Item NameWasher,lock
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerNational Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
StatusCANCELLED
Nondefinitive Spec/std DataC CLASS
Hole Diameter0.255 INCHES MINIMUM AND 0.267 INCHES MAXIMUM IN
MaterialSTEEL COMP 301 OR STEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 303SE OR STEEL COMP 304 OR STEEL COMP 304L OR STEEL COMP 305 OR STEEL COMP 308 OR STEEL COMP 309 OR STEEL COMP 309S OR STEEL COMP 310 OR STEEL COMP 310S OR STEEL COMP 314 OR STEEL COMP 316 OR STEEL COMP 316L OR STEEL COMP 317 OR STEEL COMP 321 OR STEEL COMP 347 OR STEEL COMP 385 OR STEEL COMP 384 OR STEEL COMP 348 OVERALL
Departure From Cited DesignatorAS MODIFIED BY DIM.
Hardness Rating35.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM
Style DesignatorSPLIT HELICAL-RIGHT HAND
Specification/standard Data80205-NAS1676 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Outside Diameter0.363 INCHES NOMINAL IN
Material Document and Classification66 FED STD ALL MATERIAL RESPONSES OVERALL
Material Thickness0.078 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 9
5310-00-262-3491158255PC56 INTERCHANGEABLE
Washer,lock
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5310-00-262-3558158255PC46 INTERCHANGEABLE
Washer,lock
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5310-00-262-3559 INTERCHANGEABLE
Washer,lock
5310-00-262-3563 INTERCHANGEABLE
Washer,lock
5310-00-262-3564 INTERCHANGEABLE
Washer,lock
5310-00-262-3570 INTERCHANGEABLE
Washer,lock
5310-00-595-7143 INTERCHANGEABLE
Washer,lock
5310-00-596-7693 INTERCHANGEABLE
Washer,lock
5310-00-680-6844 INTERCHANGEABLE
Washer,lock
Cross-Reference Index
Part NumberManufacturer
FFW84CLASSC Federal Specifications Promulgated by General Services Administration Washington DC (USA)
NAS1676C416 PRIMARY National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
12Z3019-9 PRIMARY Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
345894PC227 PRIMARY Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
FF-W-84A Federal Specifications Promulgated by General Services Administration Washington DC (USA)
6922D Mellowes Co Div of Charter Mfg Co Inc (USA)
Related Parts
5310-00-262-3491INTERCHANGEABLE
WASHER,LOCK
158255PC56
5310-00-262-3558INTERCHANGEABLE
WASHER,LOCK
158255PC46
5310-00-262-3559INTERCHANGEABLE
WASHER,LOCK
5310-00-262-3563INTERCHANGEABLE
WASHER,LOCK
5310-00-262-3564INTERCHANGEABLE
WASHER,LOCK
5310-00-262-3570INTERCHANGEABLE
WASHER,LOCK
5310-00-595-7143INTERCHANGEABLE
WASHER,LOCK
5310-00-596-7693INTERCHANGEABLE
WASHER,LOCK
5310-00-680-6844INTERCHANGEABLE
WASHER,LOCK

Frequently Asked Questions

What is NSN 5310-00-262-3562?

NSN 5310-00-262-3562 is a Washer,lock, manufactured by National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-262-3562?

NSN 5310-00-262-3562 has 6 cross-referenced part numbers: FFW84CLASSC (Federal Specifications Promulgated by General Services Administration Washington DC), NAS1676C416 (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use), 12Z3019-9 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 345894PC227 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), FF-W-84A (Federal Specifications Promulgated by General Services Administration Washington DC) and 1 more.

What NSN replaces 5310-00-262-3562?

There are 9 known substitutes for 5310-00-262-3562: 5310-00-262-3491, 5310-00-262-3558, 5310-00-262-3559 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of NAS1676C416?

Key specifications for NAS1676C416: Nondefinitive Spec/std Data: C CLASS; Hole Diameter: 0.255 INCHES MINIMUM AND 0.267 INCHES MAXIMUM IN; Material: STEEL COMP 301 OR STEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 303SE OR STEEL COMP 304 OR STEEL COMP 304L OR STEEL COMP 305 OR STEEL COMP 308 OR STEEL COMP 309 OR STEEL COMP 309S OR STEEL COMP 310 OR STEEL COMP 310S OR STEEL COMP 314 OR STEEL COMP 316 OR STEEL COMP 316L OR STEEL COMP 317 OR STEEL COMP 321 OR STEEL COMP 347 OR STEEL COMP 385 OR STEEL COMP 384 OR STEEL COMP 348 OVERALL; Departure From Cited Designator: AS MODIFIED BY DIM.. 11 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-262-3562 still in active supply?

NSN 5310-00-262-3562 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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