PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

6643057-3Nut,plain,hexagon

Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions · NSN 5310-01-278-6064 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-278-6064 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-278-6064. Primary manufacturer part number: 6643057-3.
Features
  • Nut,plain,hexagon — FSC 5310
  • 3 verified cross-references
  • Primary manufacturer: Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Nut,plain,hexagon, cataloged under National Stock Number 5310-01-278-6064, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions. This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameNut,plain,hexagon
FSC / FSG5310 — No Item Name Available (FSG 53)
ManufacturersSiemens Government Technologies, Inc. Dba Sgt Dresser-Rand Div Sgt Dresser-Rand (CAGE 0BR59); Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions (CAGE 830Q4); General Electric Company (CAGE 01289)
Technical Specifications
ParameterValue
NSN5310-01-278-6064
Primary Part Number6643057-3
Item NameNut,plain,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerCurtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5310-00-913-8881 INTERCHANGEABLE
Nut,plain,hexagon
Cross-Reference Index
Part NumberManufacturer
6643057-3 Siemens Government Technologies, Inc. Dba Sgt Dresser-Rand Div Sgt Dresser-Rand (USA)
6643057-3 PRIMARY Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions (USA)
6643057-003 General Electric Company (USA)
Related Parts
5310-00-913-8881INTERCHANGEABLE
NUT,PLAIN,HEXAGON

Frequently Asked Questions

What is NSN 5310-01-278-6064?

NSN 5310-01-278-6064 is a Nut,plain,hexagon, manufactured by Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-278-6064?

NSN 5310-01-278-6064 has 3 cross-referenced part numbers: 6643057-3 (Siemens Government Technologies, Inc. Dba Sgt Dresser-Rand Div Sgt Dresser-Rand), 6643057-3 (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions), 6643057-003 (General Electric Company).

What NSN replaces 5310-01-278-6064?

There is 1 known substitute for 5310-01-278-6064: 5310-00-913-8881. Verify interchangeability with system specifications before substitution.

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