PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AT5370Nut,plain,castellated,octagon

Meritor Industrial Products, Llc · NSN 5310-00-371-4114 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-371-4114 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-371-4114. Primary manufacturer part number: AT5370.
Features
  • Nut,plain,castellated,octagon — FSC 5310
  • Thread Series: UN
  • Bearing Surface Type: CHAMFERED
  • Thread Quantity Per Inch: 12
  • Nominal Thread Size: 3.000 INCHES IN
  • Width Across Flats: 4.365 INCHES MINIMUM AND 4.385 INCHES MAXIMUM IN
  • Thread Class: 3B
  • Nut Height: 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Nut,plain,castellated,octagon, cataloged under National Stock Number 5310-00-371-4114, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Meritor Industrial Products, Llc. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 18 commercial cross-references from 15 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-371-4114
Primary Part NumberAT5370
Item NameNut,plain,castellated,octagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerMeritor Industrial Products, Llc
StatusCANCELLED
Thread SeriesUN
Bearing Surface TypeCHAMFERED
Thread Quantity Per Inch12
Nominal Thread Size3.000 INCHES IN
Width Across Flats4.365 INCHES MINIMUM AND 4.385 INCHES MAXIMUM IN
Thread Class3B
Nut Height0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
Thread DirectionRIGHT-HAND
Nut StyleCASTELLATED, OCTAGON
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
3020-00-881-2063 INTERCHANGEABLE
Pulley,groove
4320-01-088-9369202204 INTERCHANGEABLE
Pump,rotary
Cummins Inc.
5330-01-116-1143202204 INTERCHANGEABLE
Gasket
Parker-Hannifin Corporation Dba Refrigeration Specialties Div Refrigerating Specialties Division
5440-01-526-4118202204 INTERCHANGEABLE
Stepladder
Green Bull, Inc
Cross-Reference Index
Part NumberManufacturer
605I5R Oshkosh Defense Llc (USA)
6051SR Oshkosh Defense Llc (USA)
AT5370 PRIMARY Meritor Industrial Products, Llc (USA)
202204 Acf-Brill Motors Co
AT5370 White Motor Corp (USA)
AT5370 Meritor Heavy Vehicle Systems, Llc (USA)
AT5370 Vme Americas Inc Sub of Vme Group N V (USA)
6051SR Oshkosh Corp (USA)
AT5370 Clark Equipment Co (USA)
AT5370 Clark Material Handling Company (USA)
AT5370 Morris Material Handling, Inc. (USA)
4G0550A Volvo Trucks North America, Inc. Dba (foreign Parent Is Volvo Lastvagnar Ab, Goteborg, Sweden.) (USA)
4G2550A Volvo Trucks North America, Inc. Dba (foreign Parent Is Volvo Lastvagnar Ab, Goteborg, Sweden.) (USA)
AT5370 PRIMARY Dana Off Highway Products, Llc (USA)
AT5370 Available Truck Co (USA)
AT5370 Kaitlin Corp (USA)
AT5370 Bay City Shovels, Inc (USA)
605I5R Oshkosh Corp (USA)
Related Parts
3020-00-881-2063INTERCHANGEABLE
PULLEY,GROOVE
4320-01-088-9369INTERCHANGEABLE
PUMP,ROTARY
202204
5330-01-116-1143INTERCHANGEABLE
GASKET
202204
5440-01-526-4118INTERCHANGEABLE
STEPLADDER
202204

Frequently Asked Questions

What is NSN 5310-00-371-4114?

NSN 5310-00-371-4114 is a Nut,plain,castellated,octagon, manufactured by Meritor Industrial Products, Llc, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-371-4114?

NSN 5310-00-371-4114 has 18 cross-referenced part numbers: 605I5R (Oshkosh Defense Llc), 6051SR (Oshkosh Defense Llc), AT5370 (Meritor Industrial Products, Llc), 202204 (Acf-Brill Motors Co), AT5370 (White Motor Corp) and 13 more.

What NSN replaces 5310-00-371-4114?

There are 4 known substitutes for 5310-00-371-4114: 3020-00-881-2063, 4320-01-088-9369, 5330-01-116-1143 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of AT5370?

Key specifications for AT5370: Thread Series: UN; Bearing Surface Type: CHAMFERED; Thread Quantity Per Inch: 12; Nominal Thread Size: 3.000 INCHES IN. 9 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-371-4114 still in active supply?

NSN 5310-00-371-4114 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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