PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

681948PC5Washer,lock

Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier · NSN 5310-00-262-3522 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-262-3522 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-262-3522. Primary manufacturer part number: 681948PC5.
Features
  • Washer,lock — FSC 5310
  • Surface Treatment: ZINC OVERALL
  • Material Document and Classification: 66 FED STD ALL MATERIAL RESPONSES OVERALL
  • Material: STEEL COMP 1060 OR STEEL COMP 1070 OR STEEL COMP 1078 OR STEEL COMP 1080 OVERALL
  • Hole Diameter: 0.221 INCHES MINIMUM AND 0.232 INCHES MAXIMUM IN
  • Material Thickness: 0.080 INCHES NOMINAL IN
  • Outside Diameter: 0.500 INCHES MAXIMUM IN
  • Hardness Rating: 45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 1060 or Steel Comp 1070 or Steel Comp 1078 or Steel Comp 1080 Overall construction
General Description

The Washer,lock, cataloged under National Stock Number 5310-00-262-3522, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-262-3522
Primary Part Number681948PC5
Item NameWasher,lock
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerNavair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
StatusCANCELLED
Surface TreatmentZINC OVERALL
Material Document and Classification66 FED STD ALL MATERIAL RESPONSES OVERALL
MaterialSTEEL COMP 1060 OR STEEL COMP 1070 OR STEEL COMP 1078 OR STEEL COMP 1080 OVERALL
Hole Diameter0.221 INCHES MINIMUM AND 0.232 INCHES MAXIMUM IN
Material Thickness0.080 INCHES NOMINAL IN
Outside Diameter0.500 INCHES MAXIMUM IN
Hardness Rating45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM
Nondefinitive Spec/std DataA CLASS AND 4 STYLE
Surface Treatment Document and ClassificationQQ-Z-325,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Style DesignatorSPLIT HELICAL-RIGHT HAND
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 5
5310-00-050-2331 INTERCHANGEABLE
Washer,lock
5310-00-050-2342 INTERCHANGEABLE
Washer,lock
5310-00-209-5122 INTERCHANGEABLE
Washer,lock
5310-00-262-3531 INTERCHANGEABLE
Washer,lock
5310-00-721-7809 INTERCHANGEABLE
Washer,lock
Cross-Reference Index
Part NumberManufacturer
681948PC5 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
12Z22PC284 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
FFW84CLASSASTYLE5A Federal Specifications Promulgated by General Services Administration Washington DC (USA)
FFW84CLASSASTYLE4 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
Related Parts
5310-00-050-2331INTERCHANGEABLE
WASHER,LOCK
5310-00-050-2342INTERCHANGEABLE
WASHER,LOCK
5310-00-209-5122INTERCHANGEABLE
WASHER,LOCK
5310-00-262-3531INTERCHANGEABLE
WASHER,LOCK
5310-00-721-7809INTERCHANGEABLE
WASHER,LOCK

Frequently Asked Questions

What is NSN 5310-00-262-3522?

NSN 5310-00-262-3522 is a Washer,lock, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-262-3522?

NSN 5310-00-262-3522 has 4 cross-referenced part numbers: 681948PC5 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 12Z22PC284 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), FFW84CLASSASTYLE5A (Federal Specifications Promulgated by General Services Administration Washington DC), FFW84CLASSASTYLE4 (Federal Specifications Promulgated by General Services Administration Washington DC).

What NSN replaces 5310-00-262-3522?

There are 5 known substitutes for 5310-00-262-3522: 5310-00-050-2331, 5310-00-050-2342, 5310-00-209-5122 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 681948PC5?

Key specifications for 681948PC5: Surface Treatment: ZINC OVERALL; Material Document and Classification: 66 FED STD ALL MATERIAL RESPONSES OVERALL; Material: STEEL COMP 1060 OR STEEL COMP 1070 OR STEEL COMP 1078 OR STEEL COMP 1080 OVERALL; Hole Diameter: 0.221 INCHES MINIMUM AND 0.232 INCHES MAXIMUM IN. 10 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-262-3522 still in active supply?

NSN 5310-00-262-3522 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.
PartsTable Design LLC · partstable.com