PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

M851UPCNUTNut,plain,hexagon

Energy Services Group Div of Cooper Industries Inc · NSN 5310-00-274-9812 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-274-9812 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-274-9812. Primary manufacturer part number: M851UPCNUT.
Features
  • Nut,plain,hexagon — FSC 5310
  • Thread Direction: RIGHT-HAND
  • Width Across Flats: 3.025 INCHES MINIMUM AND 3.125 INCHES MAXIMUM IN
  • Thread Series: UNIFIED NATIONAL COARSE (UNC)
  • Nominal Thread Size: 2.000 INCHES IN
  • Thread Quantity Per Inch: 4.5
  • Bearing Surface Type: CHAMFERED OR WASHER FACED
  • Nut Height: 1.925 INCHES MINIMUM AND 2.013 INCHES MAXIMUM IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 1006 or Steel Comp 1008 or Steel Comp 1010 or Steel Comp 1012 Overall construction
General Description

The Nut,plain,hexagon, cataloged under National Stock Number 5310-00-274-9812, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Energy Services Group Div of Cooper Industries Inc. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 11 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-274-9812
Primary Part NumberM851UPCNUT
Item NameNut,plain,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerEnergy Services Group Div of Cooper Industries Inc
StatusACTIVE
Thread DirectionRIGHT-HAND
Width Across Flats3.025 INCHES MINIMUM AND 3.125 INCHES MAXIMUM IN
Thread SeriesUNIFIED NATIONAL COARSE (UNC)
Nominal Thread Size2.000 INCHES IN
Thread Quantity Per Inch4.5
Bearing Surface TypeCHAMFERED OR WASHER FACED
Nut Height1.925 INCHES MINIMUM AND 2.013 INCHES MAXIMUM IN
Thread Class3B
Nut StyleHEXAGON
Nondefinitive Spec/std Data2 TYPE AND 8 STYLE
Departure From Cited DesignatorAS MODIFIED BY MATERIAL AND THREAD CLASS
Material Document and ClassificationQQ-W-409 FED SPEC ALL MATERIAL RESPONSES OVERALL
MaterialSTEEL COMP 1006 OR STEEL COMP 1008 OR STEEL COMP 1010 OR STEEL COMP 1012 OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5310-00-017-4825 INTERCHANGEABLE
Nut,plain,hexagon
5310-00-297-89200N6B INTERCHANGEABLE
Nut,plain,hexagon
Tyco Fire Products Lp
5310-00-297-8927 INTERCHANGEABLE
Nut,plain,hexagon
5310-00-596-742181334639 INTERCHANGEABLE
Nut,plain,hexagon
Fairbanks Morse, Llc
5310-00-616-1739 INTERCHANGEABLE
Nut,plain,hexagon
Cross-Reference Index
Part NumberManufacturer
M851UPCNUT Energy Services Group Div of Cooper Industries Inc (USA)
53 Energy Services Group Div of Cooper Industries Inc (USA)
DS863 Energy Services Group Div of Cooper Industries Inc (USA)
PL100WPCDS863 Energy Services Group Div of Cooper Industries Inc (USA)
PL126W8PCDS863 Energy Services Group Div of Cooper Industries Inc (USA)
M222WPC53 Energy Services Group Div of Cooper Industries Inc (USA)
PL126WPCDS863 Energy Services Group Div of Cooper Industries Inc (USA)
FFN836TYPE2STYLE8 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
PL126W10PCDS863 Energy Services Group Div of Cooper Industries Inc (USA)
FFN836GPBTYPE4STYLE3 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
M670VPC2 Energy Services Group Div of Cooper Industries Inc (USA)
Related Parts
5310-00-017-4825INTERCHANGEABLE
NUT,PLAIN,HEXAGON
5310-00-297-8920INTERCHANGEABLE
NUT,PLAIN,HEXAGON
0N6B
5310-00-297-8927INTERCHANGEABLE
NUT,PLAIN,HEXAGON
5310-00-596-7421INTERCHANGEABLE
NUT,PLAIN,HEXAGON
81334639
5310-00-616-1739INTERCHANGEABLE
NUT,PLAIN,HEXAGON

Frequently Asked Questions

What is NSN 5310-00-274-9812?

NSN 5310-00-274-9812 is a Nut,plain,hexagon, manufactured by Energy Services Group Div of Cooper Industries Inc, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-274-9812?

NSN 5310-00-274-9812 has 11 cross-referenced part numbers: M851UPCNUT (Energy Services Group Div of Cooper Industries Inc), 53 (Energy Services Group Div of Cooper Industries Inc), DS863 (Energy Services Group Div of Cooper Industries Inc), PL100WPCDS863 (Energy Services Group Div of Cooper Industries Inc), PL126W8PCDS863 (Energy Services Group Div of Cooper Industries Inc) and 6 more.

What NSN replaces 5310-00-274-9812?

There are 5 known substitutes for 5310-00-274-9812: 5310-00-017-4825, 5310-00-297-8920, 5310-00-297-8927 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of M851UPCNUT?

Key specifications for M851UPCNUT: Thread Direction: RIGHT-HAND; Width Across Flats: 3.025 INCHES MINIMUM AND 3.125 INCHES MAXIMUM IN; Thread Series: UNIFIED NATIONAL COARSE (UNC); Nominal Thread Size: 2.000 INCHES IN. 13 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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