PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MILB857TYPEACLASSCNut,plain,hexagon

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5310-00-188-7833 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-188-7833 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-188-7833. Primary manufacturer part number: MILB857TYPEACLASSC.
Features
  • Nut,plain,hexagon — FSC 5310
  • Thread Class: 2B
  • Nominal Thread Size: 0.562 INCHES IN
  • Thread Quantity Per Inch: 12
  • Thread Series: UNIFIED NATIONAL COARSE (UNC)
  • Material: STEEL OVERALL
  • Nut Style: HEXAGON
  • Width Across Flats: 0.847 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN
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 5310-00-188-7833, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 9 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. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-188-7833
Primary Part NumberMILB857TYPEACLASSC
Item NameNut,plain,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Thread Class2B
Nominal Thread Size0.562 INCHES IN
Thread Quantity Per Inch12
Thread SeriesUNIFIED NATIONAL COARSE (UNC)
MaterialSTEEL OVERALL
Nut StyleHEXAGON
Width Across Flats0.847 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN
Thread DirectionRIGHT-HAND
Nut Height0.484 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5310-00-188-7831 INTERCHANGEABLE
Nut,plain,hexagon
5310-00-188-7834 INTERCHANGEABLE
Nut,plain,hexagon
5310-00-188-7836 INTERCHANGEABLE
Nut,plain,hexagon
5310-00-221-4845 INTERCHANGEABLE
Nut,plain,hexagon
5310-00-227-798943N6870 INTERCHANGEABLE
Nut,plain,hexagon
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5306-00-579-1469 INTERCHANGEABLE
Bolt,machine
5306-00-579-4948 INTERCHANGEABLE
Bolt,machine
5310-00-619-196174593A INTERCHANGEABLE
Nut,plain,hexagon
Air Products & Chemicals, Inc
Cross-Reference Index
Part NumberManufacturer
MILB857TYPEACLASSC Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5310-00-188-7831INTERCHANGEABLE
NUT,PLAIN,HEXAGON
5310-00-188-7834INTERCHANGEABLE
NUT,PLAIN,HEXAGON
5310-00-188-7836INTERCHANGEABLE
NUT,PLAIN,HEXAGON
5310-00-221-4845INTERCHANGEABLE
NUT,PLAIN,HEXAGON
5310-00-227-7989INTERCHANGEABLE
NUT,PLAIN,HEXAGON
43N6870
5306-00-579-1469INTERCHANGEABLE
BOLT,MACHINE
5306-00-579-4948INTERCHANGEABLE
BOLT,MACHINE
5310-00-619-1961INTERCHANGEABLE
NUT,PLAIN,HEXAGON
74593A

Frequently Asked Questions

What is NSN 5310-00-188-7833?

NSN 5310-00-188-7833 is a Nut,plain,hexagon, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-188-7833?

NSN 5310-00-188-7833 has 1 cross-referenced part number: MILB857TYPEACLASSC (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5310-00-188-7833?

There are 8 known substitutes for 5310-00-188-7833: 5310-00-188-7831, 5310-00-188-7834, 5310-00-188-7836 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MILB857TYPEACLASSC?

Key specifications for MILB857TYPEACLASSC: Thread Class: 2B; Nominal Thread Size: 0.562 INCHES IN; Thread Quantity Per Inch: 12; Thread Series: UNIFIED NATIONAL COARSE (UNC). 9 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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