PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

16A4C7FM2Nut,plain,hexagon

Curtiss-Wright Electro-Mechanical Corporation Div Epd · NSN 5310-00-266-0389 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-266-0389 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-266-0389. Primary manufacturer part number: 16A4C7FM2.
Features
  • Nut,plain,hexagon — FSC 5310
  • Nut Height: 0.535 INCHES MINIMUM AND 0.559 INCHES MAXIMUM IN
  • Bearing Surface Type: CHAMFERED OR WASHER FACED
  • Nominal Thread Size: 0.625 INCHES IN
  • Thread Quantity Per Inch: 11
  • Thread Series: UNIFIED NATIONAL COARSE (UNC)
  • Nut Style: HEXAGON
  • Material: STEEL OVERALL
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 5310-00-266-0389, 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 Div Epd. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 11 commercial cross-references from 7 manufacturers, 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
NSN5310-00-266-0389
Primary Part Number16A4C7FM2
Item NameNut,plain,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerCurtiss-Wright Electro-Mechanical Corporation Div Epd
StatusACTIVE
Nut Height0.535 INCHES MINIMUM AND 0.559 INCHES MAXIMUM IN
Bearing Surface TypeCHAMFERED OR WASHER FACED
Nominal Thread Size0.625 INCHES IN
Thread Quantity Per Inch11
Thread SeriesUNIFIED NATIONAL COARSE (UNC)
Nut StyleHEXAGON
MaterialSTEEL OVERALL
Nondefinitive Spec/std Data2 TYPE AND 13 STYLE
Thread Class2B
Thread DirectionRIGHT-HAND
Width Across Flats0.922 INCHES MINIMUM AND 0.938 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5310-00-763-8920 INTERCHANGEABLE
Nut,plain,hexagon
Cross-Reference Index
Part NumberManufacturer
16A4C7FM2 Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA)
16A4C7 Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA)
17A4C7 Siemens Energy, Inc. Dba Dresser-Rand (USA)
16A4C7 Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
FFN836 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
16A4C7FM2 Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
17A4C7 Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions (USA)
17A4C7 Dresser-Rand Co Ingersoll-Rand Opns a Joint Venture (USA)
16A4C7FM2 Ingersoll Rand Co (USA)
17A4C7 Ingersoll Rand Co (USA)
16A4C7 Ingersoll Rand Co (USA)
Related Parts
5310-00-763-8920INTERCHANGEABLE
NUT,PLAIN,HEXAGON

Frequently Asked Questions

What is NSN 5310-00-266-0389?

NSN 5310-00-266-0389 is a Nut,plain,hexagon, manufactured by Curtiss-Wright Electro-Mechanical Corporation Div Epd, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-266-0389?

NSN 5310-00-266-0389 has 11 cross-referenced part numbers: 16A4C7FM2 (Curtiss-Wright Electro-Mechanical Corporation Div Epd), 16A4C7 (Curtiss-Wright Electro-Mechanical Corporation Div Epd), 17A4C7 (Siemens Energy, Inc. Dba Dresser-Rand), 16A4C7 (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging), FFN836 (Federal Specifications Promulgated by General Services Administration Washington DC) and 6 more.

What NSN replaces 5310-00-266-0389?

There is 1 known substitute for 5310-00-266-0389: 5310-00-763-8920. Verify interchangeability with system specifications before substitution.

What are the specifications of 16A4C7FM2?

Key specifications for 16A4C7FM2: Nut Height: 0.535 INCHES MINIMUM AND 0.559 INCHES MAXIMUM IN; Bearing Surface Type: CHAMFERED OR WASHER FACED; Nominal Thread Size: 0.625 INCHES IN; Thread Quantity Per Inch: 11. 11 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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