PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

223451Nut,plain,castellated,hexagon

Eaton Aerospace, Llc Dba Jackson South · NSN 5310-00-559-9111 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-559-9111 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-559-9111. Primary manufacturer part number: 223451.
Features
  • Nut,plain,castellated,hexagon — FSC 5310
  • Surface Treatment Document and Classification: MIL-C-16232,TY 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
  • Material Document and Classification: QQ-S-624 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Thread Quantity Per Inch: 14
  • Thread Series: UNF
  • Thread Direction: RIGHT-HAND
  • Width Across Flats: 1.269 INCHES MINIMUM AND 1.312 INCHES MAXIMUM IN
  • Nut Height: 0.890 INCHES MINIMUM AND 0.922 INCHES MAXIMUM IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Nut,plain,castellated,hexagon, cataloged under National Stock Number 5310-00-559-9111, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Eaton Aerospace, Llc Dba Jackson South. Government technical data includes 13 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-559-9111
Primary Part Number223451
Item NameNut,plain,castellated,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerEaton Aerospace, Llc Dba Jackson South
StatusCANCELLED
Surface Treatment Document and ClassificationMIL-C-16232,TY 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
Material Document and ClassificationQQ-S-624 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Thread Quantity Per Inch14
Thread SeriesUNF
Thread DirectionRIGHT-HAND
Width Across Flats1.269 INCHES MINIMUM AND 1.312 INCHES MAXIMUM IN
Nut Height0.890 INCHES MINIMUM AND 0.922 INCHES MAXIMUM IN
Thread Class2B
Nut StyleCASTELLATED, HEXAGON
MaterialSTEEL OVERALL
Bearing Surface TypeCHAMFERED OR WASHER FACED
Surface TreatmentPHOSPHATE ZINC OVERALL
Nominal Thread Size0.875 INCHES IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 1
5305-00-900-0576AES01C750B25AW9A91 INTERCHANGEABLE
Screw,cap,hexagon Head
The American Society of Mechanical Engineers
Cross-Reference Index
Part NumberManufacturer
223451 PRIMARY Eaton Aerospace, Llc Dba Jackson South (USA)
Related Parts
5305-00-900-0576INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
AES01C750B25AW9A91

Frequently Asked Questions

What is NSN 5310-00-559-9111?

NSN 5310-00-559-9111 is a Nut,plain,castellated,hexagon, manufactured by Eaton Aerospace, Llc Dba Jackson South, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-559-9111?

NSN 5310-00-559-9111 has 1 cross-referenced part number: 223451 (Eaton Aerospace, Llc Dba Jackson South).

What NSN replaces 5310-00-559-9111?

There is 1 known substitute for 5310-00-559-9111: 5305-00-900-0576. Verify interchangeability with system specifications before substitution.

What are the specifications of 223451?

Key specifications for 223451: Surface Treatment Document and Classification: MIL-C-16232,TY 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Material Document and Classification: QQ-S-624 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Thread Quantity Per Inch: 14; Thread Series: UNF. 13 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-559-9111 still in active supply?

NSN 5310-00-559-9111 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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