PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

ESP-E-56.121-PPNut,self-Locking,hexagon

Nd Defense Llc · NSN 5310-01-067-8403 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-067-8403 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-067-8403. Primary manufacturer part number: ESP-E-56.121-PP.
Features
  • Nut,self-Locking,hexagon — FSC 5310
  • 5 verified cross-references
  • Primary manufacturer: Nd Defense Llc
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-01-067-8403, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Nd Defense Llc. This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameNut,self-Locking,hexagon
FSC / FSG5310 — No Item Name Available (FSG 53)
ManufacturersNd Defense Llc (CAGE 338X5); Navistar International Corporation Dba Navistar (CAGE 31007); Asf Logistics, Llc (CAGE 5F5P2); Navistar Intl Corp Truck Br Ohio Plant (CAGE 89346)
Technical Specifications
ParameterValue
NSN5310-01-067-8403
Primary Part NumberESP-E-56.121-PP
Item NameNut,self-Locking,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerNd Defense Llc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5310-01-078-780626110R1 INTERCHANGEABLE
Nut,self-Locking,cone Seat,hexag
Nd Defense Llc
5310-01-082-8578NL-210-1 INTERCHANGEABLE
Nut,plain,hexagon
Meritor Industrial Products, Llc
5310-01-194-84899412230 INTERCHANGEABLE
Nut,self-Locking,hexagon
Komatsu America Corp.
5310-01-241-61229413977 INTERCHANGEABLE
Nut,self-Locking,hexagon
Nd Defense Llc
5310-01-555-497936403 INTERCHANGEABLE
Nut,plain,hexagon
Fastenal Company Dba Fastenal Co
5310-01-556-6217 INTERCHANGEABLE
Nut,self-Locking,cone Seat,hexag
5310-01-566-88279413983 INTERCHANGEABLE
Nut,self-Locking,cone Seat,hexag
Nd Defense Llc
Cross-Reference Index
Part NumberManufacturer
ESP-E-56.121-PP Nd Defense Llc (USA)
9413979 Navistar International Corporation Dba Navistar (USA)
9413979 Asf Logistics, Llc (USA)
9413979 Nd Defense Llc (USA)
9413979 Navistar Intl Corp Truck Br Ohio Plant (USA)
Related Parts
5310-01-078-7806INTERCHANGEABLE
NUT,SELF-LOCKING,CONE SEAT,HEXAG
26110R1
5310-01-082-8578INTERCHANGEABLE
NUT,PLAIN,HEXAGON
NL-210-1
5310-01-194-8489INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
9412230
5310-01-241-6122INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
9413977
5310-01-555-4979INTERCHANGEABLE
NUT,PLAIN,HEXAGON
36403
5310-01-556-6217INTERCHANGEABLE
NUT,SELF-LOCKING,CONE SEAT,HEXAG
5310-01-566-8827INTERCHANGEABLE
NUT,SELF-LOCKING,CONE SEAT,HEXAG
9413983

Frequently Asked Questions

What is NSN 5310-01-067-8403?

NSN 5310-01-067-8403 is a Nut,self-Locking,hexagon, manufactured by Nd Defense Llc, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-067-8403?

NSN 5310-01-067-8403 has 5 cross-referenced part numbers: ESP-E-56.121-PP (Nd Defense Llc), 9413979 (Navistar International Corporation Dba Navistar), 9413979 (Asf Logistics, Llc), 9413979 (Nd Defense Llc), 9413979 (Navistar Intl Corp Truck Br Ohio Plant).

What NSN replaces 5310-01-067-8403?

There are 7 known substitutes for 5310-01-067-8403: 5310-01-078-7806, 5310-01-082-8578, 5310-01-194-8489 and 4 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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