PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

7B1756Nut,self-Locking,hexagon

Caterpillar Inc Div Caterpillar Defense · NSN 5310-00-365-2276 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-365-2276 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-365-2276. Primary manufacturer part number: 7B1756.
Features
  • Nut,self-Locking,hexagon — FSC 5310
  • Nut Style: HEXAGON
  • Thread Class: 3B
  • Thread Series: UNF
  • Thread Quantity Per Inch: 18
  • Nominal Thread Size: 0.625 INCHES IN
  • Thread Direction: RIGHT-HAND
  • Locking Feature: PREVAILING TORQUE WITH NONMETALLIC INSERT
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Fiber Locking Insert construction
General Description

The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-00-365-2276, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Caterpillar Inc Div Caterpillar Defense. Government technical data includes 12 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-365-2276
Primary Part Number7B1756
Item NameNut,self-Locking,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerCaterpillar Inc Div Caterpillar Defense
StatusACTIVE
Nut StyleHEXAGON
Thread Class3B
Thread SeriesUNF
Thread Quantity Per Inch18
Nominal Thread Size0.625 INCHES IN
Thread DirectionRIGHT-HAND
Locking FeaturePREVAILING TORQUE WITH NONMETALLIC INSERT
Surface TreatmentZINC NUT
MaterialFIBER LOCKING INSERT
MaterialSTEEL NUT
Nut Height0.750 INCHES NOMINAL IN
Width Across Flats0.937 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5310-00-982-6809MS21044N10 INTERCHANGEABLE
Nut,self-Locking,hexagon
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
Cross-Reference Index
Part NumberManufacturer
7B1756 PRIMARY Caterpillar Inc Div Caterpillar Defense (USA)
Related Parts
5310-00-982-6809INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
MS21044N10

Frequently Asked Questions

What is NSN 5310-00-365-2276?

NSN 5310-00-365-2276 is a Nut,self-Locking,hexagon, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-365-2276?

NSN 5310-00-365-2276 has 1 cross-referenced part number: 7B1756 (Caterpillar Inc Div Caterpillar Defense).

What NSN replaces 5310-00-365-2276?

There is 1 known substitute for 5310-00-365-2276: 5310-00-982-6809. Verify interchangeability with system specifications before substitution.

What are the specifications of 7B1756?

Key specifications for 7B1756: Nut Style: HEXAGON; Thread Class: 3B; Thread Series: UNF; Thread Quantity Per Inch: 18. 12 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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