PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

33718Washer,lock

Fastenal Company Dba Fastenal Co · NSN 5310-01-648-1311 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-648-1311 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-648-1311. Primary manufacturer part number: 33718.
Features
  • Washer,lock — FSC 5310
  • Outside Diameter: 1.220 INCHES MINIMUM AND 1.245 INCHES MAXIMUM IN
  • Hole Diameter: 0.769 INCHES MINIMUM AND 0.795 INCHES MAXIMUM IN
  • Material Thickness: 0.047 INCHES MINIMUM AND 0.055 INCHES MAXIMUM IN
  • Style Designator: FLAT INTERNAL TEETH
  • Material: STEEL OVERALL
  • Surface Treatment: ZINC OVERALL
  • 1 verified cross-reference
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Washer,lock, cataloged under National Stock Number 5310-01-648-1311, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Fastenal Company Dba Fastenal Co. Government technical data includes 6 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-648-1311
Primary Part Number33718
Item NameWasher,lock
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerFastenal Company Dba Fastenal Co
StatusACTIVE
Outside Diameter1.220 INCHES MINIMUM AND 1.245 INCHES MAXIMUM IN
Hole Diameter0.769 INCHES MINIMUM AND 0.795 INCHES MAXIMUM IN
Material Thickness0.047 INCHES MINIMUM AND 0.055 INCHES MAXIMUM IN
Style DesignatorFLAT INTERNAL TEETH
MaterialSTEEL OVERALL
Surface TreatmentZINC OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5940-00-114-1300MS20659-105 INTERCHANGEABLE
Terminal,lug
Sae International Dba Sae International
5330-00-346-56367B206 INTERCHANGEABLE
Gasket
Caterpillar Inc Div Caterpillar Defense
2915-01-036-492733718 INTERCHANGEABLE
Disk,valve
Collins Engine Nozzles, Inc
4730-01-362-2987 INTERCHANGEABLE
Flange,pipe
3020-01-370-270633718 INTERCHANGEABLE
Gear,bevel
Von Ruden Mfg Inc
5330-01-629-553333718 INTERCHANGEABLE
Seal,plain
Industrial Technologies and Services Llc
Cross-Reference Index
Part NumberManufacturer
33718 PRIMARY Fastenal Company Dba Fastenal Co (USA)
Related Parts
5940-00-114-1300INTERCHANGEABLE
TERMINAL,LUG
MS20659-105
5330-00-346-5636INTERCHANGEABLE
GASKET
7B206
2915-01-036-4927INTERCHANGEABLE
DISK,VALVE
33718
4730-01-362-2987INTERCHANGEABLE
FLANGE,PIPE
3020-01-370-2706INTERCHANGEABLE
GEAR,BEVEL
33718
5330-01-629-5533INTERCHANGEABLE
SEAL,PLAIN
33718

Frequently Asked Questions

What is NSN 5310-01-648-1311?

NSN 5310-01-648-1311 is a Washer,lock, manufactured by Fastenal Company Dba Fastenal Co, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-648-1311?

NSN 5310-01-648-1311 has 1 cross-referenced part number: 33718 (Fastenal Company Dba Fastenal Co).

What NSN replaces 5310-01-648-1311?

There are 6 known substitutes for 5310-01-648-1311: 5940-00-114-1300, 5330-00-346-5636, 2915-01-036-4927 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 33718?

Key specifications for 33718: End Item Identification: R19TM900GPMFL; Outside Diameter: 1.220 INCHES MINIMUM AND 1.245 INCHES MAXIMUM IN; Hole Diameter: 0.769 INCHES MINIMUM AND 0.795 INCHES MAXIMUM IN; Special Features: 10 TOOTH INTERNAL. 8 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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