PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

140298Nut,plain,round

Crosby Group Inc the Mckissick Plant Div · NSN 5310-01-490-5888 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-490-5888 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-490-5888. Primary manufacturer part number: 140298.
Features
  • Nut,plain,round — FSC 5310
  • Nut Diameter: 4.440 INCHES NOMINAL IN
  • Thread Series: UNIFIED NATIONAL COARSE (UNC)
  • Thread Quantity Per Inch: 8
  • Nominal Thread Size: 2.500 INCHES IN
  • Nut Style: ROUND
  • Nut Thickness: 7.500 INCHES NOMINAL IN
  • 1 verified cross-reference
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Nut,plain,round, cataloged under National Stock Number 5310-01-490-5888, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Crosby Group Inc the Mckissick Plant Div. Government technical data includes 6 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-490-5888
Primary Part Number140298
Item NameNut,plain,round
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerCrosby Group Inc the Mckissick Plant Div
StatusACTIVE
Nut Diameter4.440 INCHES NOMINAL IN
Thread SeriesUNIFIED NATIONAL COARSE (UNC)
Thread Quantity Per Inch8
Nominal Thread Size2.500 INCHES IN
Nut StyleROUND
Nut Thickness7.500 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5826-00-099-0137 INTERCHANGEABLE
Gear and Shaft Asse
4730-00-289-0782SAE J512 6-6 060101BA INTERCHANGEABLE
Nipple,tube
Sae International Dba Sae International
Cross-Reference Index
Part NumberManufacturer
140298 PRIMARY Crosby Group Inc the Mckissick Plant Div (USA)
Related Parts
5826-00-099-0137INTERCHANGEABLE
GEAR AND SHAFT ASSE
4730-00-289-0782INTERCHANGEABLE
NIPPLE,TUBE
SAE J512 6-6 060101BA

Frequently Asked Questions

What is NSN 5310-01-490-5888?

NSN 5310-01-490-5888 is a Nut,plain,round, manufactured by Crosby Group Inc the Mckissick Plant Div, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-490-5888?

NSN 5310-01-490-5888 has 1 cross-referenced part number: 140298 (Crosby Group Inc the Mckissick Plant Div).

What NSN replaces 5310-01-490-5888?

There are 2 known substitutes for 5310-01-490-5888: 5826-00-099-0137, 4730-00-289-0782. Verify interchangeability with system specifications before substitution.

What are the specifications of 140298?

Key specifications for 140298: Part Name Assigned by Controlling Agency: NAVY SPECIAL PROJECT; Nut Diameter: 4.440 INCHES NOMINAL IN; Thread Series: UNIFIED NATIONAL COARSE (UNC); Thread Quantity Per Inch: 8. 8 total characteristics are documented in the Federal Logistics Information System.

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