PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

FN22A624Nut,self-Locking,extended Washer

Sps Technologies, Llc Dba PB Fasteners · NSN 5310-00-463-9227 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-463-9227 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-463-9227. Primary manufacturer part number: FN22A624.
Features
  • Nut,self-Locking,extended Washer — FSC 5310
  • Material: STEEL COMP 8740 OR STEEL COMP H11 OVERALL
  • Thread Class: 3B
  • Washer Thickness: 0.070 INCHES NOMINAL IN
  • Washer Outside Diameter: 0.649 INCHES MAXIMUM IN
  • Hardness Rating: 36.0 ROCKWELL C MINIMUM AND 47.0 ROCKWELL C MAXIMUM
  • Width Across Flats: 0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN
  • Nominal Thread Size: 0.375 INCHES IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 8740 or Steel Comp H11 Overall construction
General Description

The Nut,self-Locking,extended Washer, cataloged under National Stock Number 5310-00-463-9227, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Sps Technologies, Llc Dba PB Fasteners. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 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
NSN5310-00-463-9227
Primary Part NumberFN22A624
Item NameNut,self-Locking,extended Washer
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerSps Technologies, Llc Dba PB Fasteners
StatusACTIVE
MaterialSTEEL COMP 8740 OR STEEL COMP H11 OVERALL
Thread Class3B
Washer Thickness0.070 INCHES NOMINAL IN
Washer Outside Diameter0.649 INCHES MAXIMUM IN
Hardness Rating36.0 ROCKWELL C MINIMUM AND 47.0 ROCKWELL C MAXIMUM
Width Across Flats0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN
Nominal Thread Size0.375 INCHES IN
Surface TreatmentCADMIUM OVERALL
Thread DirectionRIGHT-HAND
Material Document and ClassificationAMS 6322 ASSN STD 1ST MATERIAL RESPONSE OR AISI ASSN STD 1ST MATERIAL RESPONSE OR AMS6485 ASSN STD 2ND MATERIAL RESPONSE OVERALL
Surface Treatment Document and Classification11188315 TY2,CL3,FSCM 17773 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
Test Data Document17773-11176256 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING)
Temp Rating500.0 FAHRENHEIT NOMINAL DEGF
Thread SeriesUNF
Thread Quantity Per Inch24
Nut StyleDOUBLE HEXAGON
Locking FeaturePREVAILING TORQUE ALL METAL DESIGN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5310-00-680-5210BACN10B-L6L INTERCHANGEABLE
Nut,self-Locking,extended Washer
The Boeing Company Div Defense
Cross-Reference Index
Part NumberManufacturer
F12LH6881-064 Harvard Industries Inc (USA)
11176256-4 Ballistic Missile Defense Systems Command (USA)
FN22A624 PRIMARY Sps Technologies, Llc Dba PB Fasteners (USA)
F12LH6881-064 Esna, Llc (USA)
Related Parts
5310-00-680-5210INTERCHANGEABLE
NUT,SELF-LOCKING,EXTENDED WASHER
BACN10B-L6L

Frequently Asked Questions

What is NSN 5310-00-463-9227?

NSN 5310-00-463-9227 is a Nut,self-Locking,extended Washer, manufactured by Sps Technologies, Llc Dba PB Fasteners, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-463-9227?

NSN 5310-00-463-9227 has 4 cross-referenced part numbers: F12LH6881-064 (Harvard Industries Inc), 11176256-4 (Ballistic Missile Defense Systems Command), FN22A624 (Sps Technologies, Llc Dba PB Fasteners), F12LH6881-064 (Esna, Llc).

What NSN replaces 5310-00-463-9227?

There is 1 known substitute for 5310-00-463-9227: 5310-00-680-5210. Verify interchangeability with system specifications before substitution.

What are the specifications of FN22A624?

Key specifications for FN22A624: Material: STEEL COMP 8740 OR STEEL COMP H11 OVERALL; Thread Class: 3B; Washer Thickness: 0.070 INCHES NOMINAL IN; Washer Outside Diameter: 0.649 INCHES MAXIMUM IN. 18 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com