PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

90-114-4Nut,self-Locking,extended Washer

Bell Textron Inc · NSN 5310-01-685-0121 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-685-0121 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-685-0121. Primary manufacturer part number: 90-114-4.
Features
  • Nut,self-Locking,extended Washer — FSC 5310
  • Washer Thickness: 0.020 INCHES NOMINAL IN
  • Lubrication: DRY FILM LUBRICANT
  • Washer Outside Diameter: 0.386 INCHES MINIMUM IN
  • Nut Style: CASTELLATED HEXAGON
  • Width Across Flats: 0.305 INCHES MINIMUM AND 0.315 INCHES MAXIMUM IN
  • Material: STEEL CORROSION RESISTING OVERALL
  • Surface Treatment Document and Classification: AMS-QQ-P-35 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Corrosion Resisting Overall construction
General Description

The Nut,self-Locking,extended Washer, cataloged under National Stock Number 5310-01-685-0121, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Bell Textron Inc. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-685-0121
Primary Part Number90-114-4
Item NameNut,self-Locking,extended Washer
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerBell Textron Inc
StatusACTIVE
Washer Thickness0.020 INCHES NOMINAL IN
LubricationDRY FILM LUBRICANT
Washer Outside Diameter0.386 INCHES MINIMUM IN
Nut StyleCASTELLATED HEXAGON
Width Across Flats0.305 INCHES MINIMUM AND 0.315 INCHES MAXIMUM IN
MaterialSTEEL CORROSION RESISTING OVERALL
Surface Treatment Document and ClassificationAMS-QQ-P-35 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
Material Document and ClassificationAMS 5732 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Locking FeatureFREE-RUNNING ALL METAL DESIGN
Nominal Thread Size0.2500 INCHES IN
Thread Quantity Per Inch28
Thread Class3B
Thread DirectionRIGHT-HAND
Thread SeriesUNIFIED NATIONAL JOINT FINE (UNJF)
Temp Rating450.0 FAHRENHEIT MINIMUM AND 800.0 FAHRENHEIT MAXIMUM DEGF
Surface TreatmentPASSIVATE OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5110-00-268-129250-10957 INTERCHANGEABLE
Reamer,hand
Union Butterfield Corp P O Box 9000 Crystal Lake Il 60039
5410-01-040-008790114 INTERCHANGEABLE
Panel,building,prefabricated
Mid-South Industries Inc
5935-01-078-0299C5072811 INTERCHANGEABLE
Connector,receptacle,electrical
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5305-01-190-9074 INTERCHANGEABLE
Screw,externally Relieved Body
5307-01-417-7832901-14 INTERCHANGEABLE
Stud,continuous Thread
Fluid Handling Llc
5315-01-613-6336901144 INTERCHANGEABLE
Pin,straight,headed
Tim Price Inc. Dba Tim Price Inc
5945-01-620-64029-0114 INTERCHANGEABLE
Relay,electromagnetic
Thermal Dynamics Corp
5310-01-685-012290-114-10 INTERCHANGEABLE
Nut,self-Locking,extended Washer
Bell Textron Inc
5310-01-729-647490-114-8S INTERCHANGEABLE
Nut,self-Locking,extended Washer
Bell Textron Inc
Cross-Reference Index
Part NumberManufacturer
90-114-4 PRIMARY Bell Textron Inc (USA)
90-114 Bell Textron Inc (USA)
Related Parts
5110-00-268-1292INTERCHANGEABLE
REAMER,HAND
50-10957
5410-01-040-0087INTERCHANGEABLE
PANEL,BUILDING,PREFABRICATED
90114
5935-01-078-0299INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
C5072811
5305-01-190-9074INTERCHANGEABLE
SCREW,EXTERNALLY RELIEVED BODY
5307-01-417-7832INTERCHANGEABLE
STUD,CONTINUOUS THREAD
901-14
5315-01-613-6336INTERCHANGEABLE
PIN,STRAIGHT,HEADED
901144
5945-01-620-6402INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
9-0114
5310-01-685-0122INTERCHANGEABLE
NUT,SELF-LOCKING,EXTENDED WASHER
90-114-10
5310-01-729-6474INTERCHANGEABLE
NUT,SELF-LOCKING,EXTENDED WASHER
90-114-8S

Frequently Asked Questions

What is NSN 5310-01-685-0121?

NSN 5310-01-685-0121 is a Nut,self-Locking,extended Washer, manufactured by Bell Textron Inc, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-685-0121?

NSN 5310-01-685-0121 has 2 cross-referenced part numbers: 90-114-4 (Bell Textron Inc), 90-114 (Bell Textron Inc).

What NSN replaces 5310-01-685-0121?

There are 9 known substitutes for 5310-01-685-0121: 5110-00-268-1292, 5410-01-040-0087, 5935-01-078-0299 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 90-114-4?

Key specifications for 90-114-4: Washer Thickness: 0.020 INCHES NOMINAL IN; Lubrication: DRY FILM LUBRICANT; Washer Outside Diameter: 0.386 INCHES MINIMUM IN; Nut Style: CASTELLATED HEXAGON. 18 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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