PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

68351Nut,plain,hexagon

Cummins Inc. · NSN 5310-00-268-7082 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-268-7082 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-268-7082. Primary manufacturer part number: 68351.
Features
  • Nut,plain,hexagon — FSC 5310
  • Nut Style: HEXAGON
  • Nut Height: 0.188 INCHES NOMINAL IN
  • Nominal Thread Size: 0.312 INCHES IN
  • Thread Quantity Per Inch: 24
  • Thread Series: UNF
  • Bearing Surface Type: WASHER FACED
  • Thread Direction: LEFT-HAND
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 1115 or Steel Comp 1110 Overall construction
General Description

The Nut,plain,hexagon, cataloged under National Stock Number 5310-00-268-7082, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Cummins Inc.. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-268-7082
Primary Part Number68351
Item NameNut,plain,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerCummins Inc.
StatusCANCELLED
Nut StyleHEXAGON
Nut Height0.188 INCHES NOMINAL IN
Nominal Thread Size0.312 INCHES IN
Thread Quantity Per Inch24
Thread SeriesUNF
Bearing Surface TypeWASHER FACED
Thread DirectionLEFT-HAND
MaterialSTEEL COMP 1115 OR STEEL COMP 1110 OVERALL
Material Document and Classification66 FED STD ALL MATERIAL RESPONSES OVERALL
Width Across Flats0.500 INCHES NOMINAL IN
Thread Class2B
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 5
7330-00-205-309668351 INTERCHANGEABLE
Measure,liquid
The Vollrath Company, L.l.c. Div Vollrath
3030-00-340-51126VR42-31 INTERCHANGEABLE
Belts,v,matched Set
Gates Corporation
5331-00-871-472668-351 INTERCHANGEABLE
O-Ring
Goodrich Corporation Div Collins Aerospace, Landing Systems (wheels & Brakes)
6640-00-893-309268351 INTERCHANGEABLE
Oven,vacuum,desiccator
Precision Scientific Petroleum Instruments Co
3040-01-352-0176DAA3510P265-101 INTERCHANGEABLE
Connecting Link,rigid
Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems
Cross-Reference Index
Part NumberManufacturer
68351 PRIMARY Cummins Inc. (USA)
250799R1 Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/ (USA)
Related Parts
7330-00-205-3096INTERCHANGEABLE
MEASURE,LIQUID
68351
3030-00-340-5112INTERCHANGEABLE
BELTS,V,MATCHED SET
6VR42-31
5331-00-871-4726INTERCHANGEABLE
O-RING
68-351
6640-00-893-3092INTERCHANGEABLE
OVEN,VACUUM,DESICCATOR
68351
3040-01-352-0176INTERCHANGEABLE
CONNECTING LINK,RIGID
DAA3510P265-101

Frequently Asked Questions

What is NSN 5310-00-268-7082?

NSN 5310-00-268-7082 is a Nut,plain,hexagon, manufactured by Cummins Inc., classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-268-7082?

NSN 5310-00-268-7082 has 2 cross-referenced part numbers: 68351 (Cummins Inc.), 250799R1 (Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/).

What NSN replaces 5310-00-268-7082?

There are 5 known substitutes for 5310-00-268-7082: 7330-00-205-3096, 3030-00-340-5112, 5331-00-871-4726 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 68351?

Key specifications for 68351: Nut Style: HEXAGON; Nut Height: 0.188 INCHES NOMINAL IN; Nominal Thread Size: 0.312 INCHES IN; Thread Quantity Per Inch: 24. 11 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-268-7082 still in active supply?

NSN 5310-00-268-7082 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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