PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

N405P8CWasher,lock

General Electric Company · NSN 5310-01-088-1999 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-088-1999 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-088-1999. Primary manufacturer part number: N405P8C.
Features
  • Washer,lock — FSC 5310
  • Material Thickness: 0.031 INCHES MINIMUM AND 0.037 INCHES MAXIMUM IN
  • Test Data Document: 81349-MIL-P-23199 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
  • Surface Treatment: CADMIUM OVERALL
  • Hole Diameter: 0.168 INCHES MINIMUM AND 0.178 INCHES MAXIMUM IN
  • Material Document and Classification: 66 FED STD ALL MATERIAL RESPONSES OVERALL
  • Criticality Code Justification: ZZZW
  • Departure From Cited Document: AS DIFFERENTIATED BY MATERIAL WHICH MUST CONFORM TO SHIPS PARTS CONTROL CENTER SPECIAL QUALITY CONTROL PROVISIONS
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 1060 or Steel Comp 1561 or Steel Comp 1065 or Steel Comp 1566 or Steel Comp 1069 or Steel Comp 1070 or Steel Comp 1572 or Steel Comp 1074 or Steel Comp 1075 or Steel Comp 1080 Overall construction
General Description

The Washer,lock, cataloged under National Stock Number 5310-01-088-1999, 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 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-088-1999
Primary Part NumberN405P8C
Item NameWasher,lock
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerGeneral Electric Company
StatusACTIVE
Material Thickness0.031 INCHES MINIMUM AND 0.037 INCHES MAXIMUM IN
Test Data Document81349-MIL-P-23199 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
Surface TreatmentCADMIUM OVERALL
Hole Diameter0.168 INCHES MINIMUM AND 0.178 INCHES MAXIMUM IN
Material Document and Classification66 FED STD ALL MATERIAL RESPONSES OVERALL
Criticality Code JustificationZZZW
Departure From Cited DocumentAS DIFFERENTIATED BY MATERIAL WHICH MUST CONFORM TO SHIPS PARTS CONTROL CENTER SPECIAL QUALITY CONTROL PROVISIONS
Nondefinitive Spec/std DataA CLASS AND 1 STYLE
Surface Treatment Document and ClassificationQQ-P-416 CL 3 TY 1 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Special Test FeaturesSPECIAL QUALITY CONTROL TESTING
MaterialSTEEL COMP 1060 OR STEEL COMP 1561 OR STEEL COMP 1065 OR STEEL COMP 1566 OR STEEL COMP 1069 OR STEEL COMP 1070 OR STEEL COMP 1572 OR STEEL COMP 1074 OR STEEL COMP 1075 OR STEEL COMP 1080 OVERALL
Outside Diameter0.280 INCHES MAXIMUM IN
Style DesignatorSPLIT HELICAL-RIGHT HAND
Hardness Rating45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5310-00-013-1182 INTERCHANGEABLE
Washer,lock
Cross-Reference Index
Part NumberManufacturer
N405P8C PRIMARY General Electric Company (USA)
FF-W-84 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
N405P8C Ametek Advanced Industries, Inc. (USA)
Related Parts
5310-00-013-1182INTERCHANGEABLE
WASHER,LOCK

Frequently Asked Questions

What is NSN 5310-01-088-1999?

NSN 5310-01-088-1999 is a Washer,lock, manufactured by General Electric Company, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-088-1999?

NSN 5310-01-088-1999 has 3 cross-referenced part numbers: N405P8C (General Electric Company), FF-W-84 (Federal Specifications Promulgated by General Services Administration Washington DC), N405P8C (Ametek Advanced Industries, Inc.).

What NSN replaces 5310-01-088-1999?

There is 1 known substitute for 5310-01-088-1999: 5310-00-013-1182. Verify interchangeability with system specifications before substitution.

What are the specifications of N405P8C?

Key specifications for N405P8C: Material Thickness: 0.031 INCHES MINIMUM AND 0.037 INCHES MAXIMUM IN; Special Features: FREE OF MERCURY CONTAMINATION; Test Data Document: 81349-MIL-P-23199 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).; Surface Treatment: CADMIUM OVERALL. 15 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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