PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

40021 3Nut Blank

Brunswick Corp Dba Mercury Marine Div Mercury Marine · NSN 5310-01-526-3166 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-526-3166 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-526-3166. Primary manufacturer part number: 40021 3.
Features
  • Nut Blank — FSC 5310
  • Hole Thread Pitch in Millimeters: 1.25
  • 1 verified cross-reference
  • Primary manufacturer: Brunswick Corp Dba Mercury Marine Div Mercury Marine
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Nut Blank, cataloged under National Stock Number 5310-01-526-3166, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Brunswick Corp Dba Mercury Marine Div Mercury Marine. Government technical data includes 1 verified specification, 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-526-3166
Primary Part Number40021 3
Item NameNut Blank
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerBrunswick Corp Dba Mercury Marine Div Mercury Marine
StatusACTIVE
Hole Thread Pitch in Millimeters1.25
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5306-00-167-3686 INTERCHANGEABLE
Bolt,machine
5325-00-639-50544002-13 INTERCHANGEABLE
Stud Assembly,turnlock Fastener
Howmet Global Fastening Systems Inc Div Camloc Products
5935-00-929-9519400213 INTERCHANGEABLE
Connector,plug,electrical
Aimtron Systems, Llc
3040-01-068-2139400213 INTERCHANGEABLE
Shaft,shouldered
Telemechanics Inc
3120-01-191-2870400213 INTERCHANGEABLE
Bushing
Racine Tool and Machine Co Div of Burge Machine Inc
Cross-Reference Index
Part NumberManufacturer
40021 3 PRIMARY Brunswick Corp Dba Mercury Marine Div Mercury Marine (USA)
Related Parts
5306-00-167-3686INTERCHANGEABLE
BOLT,MACHINE
5325-00-639-5054INTERCHANGEABLE
STUD ASSEMBLY,TURNLOCK FASTENER
4002-13
5935-00-929-9519INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
400213
3040-01-068-2139INTERCHANGEABLE
SHAFT,SHOULDERED
400213
3120-01-191-2870INTERCHANGEABLE
BUSHING
400213

Frequently Asked Questions

What is NSN 5310-01-526-3166?

NSN 5310-01-526-3166 is a Nut Blank, manufactured by Brunswick Corp Dba Mercury Marine Div Mercury Marine, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-526-3166?

NSN 5310-01-526-3166 has 1 cross-referenced part number: 40021 3 (Brunswick Corp Dba Mercury Marine Div Mercury Marine).

What NSN replaces 5310-01-526-3166?

There are 5 known substitutes for 5310-01-526-3166: 5306-00-167-3686, 5325-00-639-5054, 5935-00-929-9519 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 40021 3?

Key specifications for 40021 3: End Item Identification: NEXT HIGHER ASSEMBLY MERCURY MOTOR TWENTYFIVE E FOURTY HORSE POWER; Hole Thread Pitch in Millimeters: 1.25; Special Features: NUT SIZE EIGHT MILIMETERS. 3 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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