PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

N418P11Washer,lock

General Electric Company · NSN 5310-00-043-5862 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-043-5862 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-043-5862. Primary manufacturer part number: N418P11.
Features
  • Washer,lock — FSC 5310
  • Material Thickness: 0.047 INCHES MINIMUM AND 0.057 INCHES MAXIMUM IN
  • Outside Diameter: 0.489 INCHES NOMINAL IN
  • Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
  • Hole Diameter: 0.255 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN
  • Hardness Rating: 35.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM
  • Material: STEEL OVERALL
  • Style Designator: SPLIT HELICAL-RIGHT HAND
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 5310-00-043-5862, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is General Electric Company. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 17 commercial cross-references from 14 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-043-5862
Primary Part NumberN418P11
Item NameWasher,lock
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerGeneral Electric Company
StatusCANCELLED
Material Thickness0.047 INCHES MINIMUM AND 0.057 INCHES MAXIMUM IN
Outside Diameter0.489 INCHES NOMINAL IN
Surface Treatment Document and ClassificationQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Hole Diameter0.255 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN
Hardness Rating35.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM
MaterialSTEEL OVERALL
Style DesignatorSPLIT HELICAL-RIGHT HAND
Surface TreatmentPASSIVATE OVERALL
Nondefinitive Spec/std Data1 STYLE AND B OR C CLASS
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
5310-00-262-3576 INTERCHANGEABLE
Washer,lock
5310-00-933-8121004-003005-020 INTERCHANGEABLE
Washer,lock
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple
5998-01-667-78593100-287-00 INTERCHANGEABLE
Circuit Card Assembly
Marvin Test Solutions, Inc. Div Na
Cross-Reference Index
Part NumberManufacturer
N418P11 General Electric Company (USA)
G221439-21 American Telephone and Telegraph Co (USA)
310-0287-00 Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA)
FFW84 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
G221439-21 Lucent Technologies Inc Corporate Headquarters (USA)
9157798-21 Us Army Aviation and Missile Command (USA)
503B1-9 Cardwell Condenser Corp Lapointe-Admiral Div (USA)
G221439-21 Lucent Technologies Inc Dba Federal Marketing Group (USA)
435862 Army Weapons Command Attn Amswe-Ree-S (USA)
503A1-9 Cardwell Condenser Corp Lapointe-Admiral Div (USA)
MS35337-82 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
1-4-107X047 Lock Rings Co Div Precision American Corp (USA)
N418P11 Lockheed Martin Corporation Div Rms (USA)
G221439-21 A T and T Tecnologies Inc Sub of American Telephone and Telegraph North Carolina Works
8186660 Us Army Aviation and Missile Command (USA)
9167802 Us Army Aviation and Missile Command (USA)
34910-07 Gaf Corp Brooklyn Plant (USA)
Related Parts
5310-00-262-3576INTERCHANGEABLE
WASHER,LOCK
5310-00-933-8121INTERCHANGEABLE
WASHER,LOCK
004-003005-020
5998-01-667-7859INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
3100-287-00

Frequently Asked Questions

What is NSN 5310-00-043-5862?

NSN 5310-00-043-5862 is a Washer,lock, manufactured by General Electric Company, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-043-5862?

NSN 5310-00-043-5862 has 17 cross-referenced part numbers: N418P11 (General Electric Company), G221439-21 (American Telephone and Telegraph Co), 310-0287-00 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems), FFW84 (Federal Specifications Promulgated by General Services Administration Washington DC), G221439-21 (Lucent Technologies Inc Corporate Headquarters) and 12 more.

What NSN replaces 5310-00-043-5862?

There are 3 known substitutes for 5310-00-043-5862: 5310-00-262-3576, 5310-00-933-8121, 5998-01-667-7859. Verify interchangeability with system specifications before substitution.

What are the specifications of N418P11?

Key specifications for N418P11: Material Thickness: 0.047 INCHES MINIMUM AND 0.057 INCHES MAXIMUM IN; Outside Diameter: 0.489 INCHES NOMINAL IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Hole Diameter: 0.255 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN. 9 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-043-5862 still in active supply?

NSN 5310-00-043-5862 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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