PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

25525R1Nut,plain,hexagon

Nd Defense Llc · NSN 5310-00-843-3816 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-843-3816 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-843-3816. Primary manufacturer part number: 25525R1.
Features
  • Nut,plain,hexagon — FSC 5310
  • Thread Quantity Per Inch: 20
  • Thread Series: UNF
  • Nominal Thread Size: 0.438 INCHES IN
  • Bearing Surface Type: CHAMFERED OR WASHER FACED
  • Width Across Flats: 0.682 INCHES NOMINAL IN
  • Material: STEEL OVERALL
  • Thread Class: 2B
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Nut,plain,hexagon, cataloged under National Stock Number 5310-00-843-3816, 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. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-843-3816
Primary Part Number25525R1
Item NameNut,plain,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerNd Defense Llc
StatusCANCELLED
Thread Quantity Per Inch20
Thread SeriesUNF
Nominal Thread Size0.438 INCHES IN
Bearing Surface TypeCHAMFERED OR WASHER FACED
Width Across Flats0.682 INCHES NOMINAL IN
MaterialSTEEL OVERALL
Thread Class2B
Nut Height0.377 INCHES NOMINAL IN
Nut StyleHEXAGON
Thread DirectionRIGHT-HAND
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5310-01-035-9421 INTERCHANGEABLE
Nut,plain,hexagon
5310-01-078-780425522R1 INTERCHANGEABLE
Nut,plain,hexagon
Nd Defense Llc
5310-01-087-805725526R1 INTERCHANGEABLE
Nut,plain,hexagon
Nd Defense Llc
5310-01-186-516325520R1 INTERCHANGEABLE
Nut,plain,hexagon
Dressta North America Ltd
5310-01-242-040625519R1 INTERCHANGEABLE
Nut,plain,hexagon
Dressta North America Ltd
5310-01-267-617023818R1 INTERCHANGEABLE
Nut,special
Solar Turbines Incorporated Dba Solar Turbines Incorporated
5310-01-346-936425524R1 INTERCHANGEABLE
Nut,plain,hexagon
Nd Defense Llc
5310-01-556-448412759-00470 INTERCHANGEABLE
Nut,plain,hexagon
Fastenal Company Dba Fastenal Co
5310-01-556-448836405 INTERCHANGEABLE
Nut,plain,hexagon
Fastenal Company Dba Fastenal Co
5310-01-556-645512759-00548 INTERCHANGEABLE
Nut,plain,hexagon
Fastenal Company Dba Fastenal Co
Cross-Reference Index
Part NumberManufacturer
25525R1 Navistar Intl Corp Truck Br Ohio Plant (USA)
ESP-E-1.101-GS Nd Defense Llc (USA)
ESP-E-1.221-NPP Nd Defense Llc (USA)
53033R1 Navistar International Corporation Dba Navistar (USA)
53033R1 Navistar Intl Corp Truck Br Ohio Plant (USA)
ESP-E-1.121-PP Nd Defense Llc (USA)
25525R1 PRIMARY Nd Defense Llc (USA)
Related Parts
5310-01-035-9421INTERCHANGEABLE
NUT,PLAIN,HEXAGON
5310-01-078-7804INTERCHANGEABLE
NUT,PLAIN,HEXAGON
25522R1
5310-01-087-8057INTERCHANGEABLE
NUT,PLAIN,HEXAGON
25526R1
5310-01-186-5163INTERCHANGEABLE
NUT,PLAIN,HEXAGON
25520R1
5310-01-242-0406INTERCHANGEABLE
NUT,PLAIN,HEXAGON
25519R1
5310-01-267-6170INTERCHANGEABLE
NUT,SPECIAL
23818R1
5310-01-346-9364INTERCHANGEABLE
NUT,PLAIN,HEXAGON
25524R1
5310-01-556-4484INTERCHANGEABLE
NUT,PLAIN,HEXAGON
12759-00470
5310-01-556-4488INTERCHANGEABLE
NUT,PLAIN,HEXAGON
36405
5310-01-556-6455INTERCHANGEABLE
NUT,PLAIN,HEXAGON
12759-00548
5310-01-563-5070INTERCHANGEABLE
NUT,PLAIN,HEXAGON
0402112
5310-01-580-4311INTERCHANGEABLE
NUT,PLAIN,HEXAGON
26302R1

Frequently Asked Questions

What is NSN 5310-00-843-3816?

NSN 5310-00-843-3816 is a Nut,plain,hexagon, manufactured by Nd Defense Llc, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-843-3816?

NSN 5310-00-843-3816 has 7 cross-referenced part numbers: 25525R1 (Navistar Intl Corp Truck Br Ohio Plant), ESP-E-1.101-GS (Nd Defense Llc), ESP-E-1.221-NPP (Nd Defense Llc), 53033R1 (Navistar International Corporation Dba Navistar), 53033R1 (Navistar Intl Corp Truck Br Ohio Plant) and 2 more.

What NSN replaces 5310-00-843-3816?

There are 12 known substitutes for 5310-00-843-3816: 5310-01-035-9421, 5310-01-078-7804, 5310-01-087-8057 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 25525R1?

Key specifications for 25525R1: End Item Identification: MRAP MAXXPRO; Thread Quantity Per Inch: 20; Thread Series: UNF; Part Name Assigned by Controlling Agency: NUT,HEX 7/16-20 TYPE 8. 12 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-843-3816 still in active supply?

NSN 5310-00-843-3816 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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