PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

330571Bolt,u

Lowell Corporation Dba Porter Ferguson Div Porter Ferguson Division · NSN 5306-00-911-4180 · FSC 5306 · No Item Name Available
Verified by PartsTable
NSN 5306-00-911-4180 — this item is cataloged by the U.S. Government under National Stock Number 5306-00-911-4180. Primary manufacturer part number: 330571.
Features
  • Bolt,u — FSC 5306
  • Thread Quantity Per Inch: 28
  • Thread Class: 2A A
  • Thread Direction: RIGHT-HAND
  • Thread Length: 0.750 INCHES NOMINAL IN
  • Thread Series Designator: UNF
  • Material: STEEL OVERALL
  • Nominal Thread Diameter: 0.250 INCHES IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Bolt,u, cataloged under National Stock Number 5306-00-911-4180, is classified within Federal Supply Class 5306 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Lowell Corporation Dba Porter Ferguson Div Porter Ferguson Division. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5306-00-911-4180
Primary Part Number330571
Item NameBolt,u
FSC / FSG5306 / 53 — No Item Name Available
ManufacturerLowell Corporation Dba Porter Ferguson Div Porter Ferguson Division
StatusACTIVE
Thread Quantity Per Inch28
Thread Class2A A
Thread DirectionRIGHT-HAND
Thread Length0.750 INCHES NOMINAL IN
Thread Series DesignatorUNF
MaterialSTEEL OVERALL
Nominal Thread Diameter0.250 INCHES IN
Style DesignatorROUND BEND
Distance From Inside Center of Bend to Bolt End3.625 INCHES NOMINAL IN
Surface TreatmentZINC OVERALL
Inside Distance Between Shanks2.484 INCHES MINIMUM AND 2.516 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
Successor5306-00-889-3003 (330570)
HAZMATNo
Verified Substitutes 4
5306-00-889-3003330570 SUCCESSOR
Bolt,u
Lowell Corporation Dba Porter Ferguson Div Porter Ferguson Division
2990-00-495-8118330571 INTERCHANGEABLE
Adapter,muffler
Fwd Seagrave Holdings Lp
5950-01-212-0000322-800054-000 INTERCHANGEABLE
Transformer,power
Cmc Electronics Inc
3020-01-234-3421 INTERCHANGEABLE
Gear Assembly,planet
Cross-Reference Index
Part NumberManufacturer
330571 Lowell Corporation Dba Porter Ferguson Div Porter Ferguson Division (USA)
330570 Cooper Industries Inc H K Porter/cooper Tools Div (USA)
Related Parts
SUCCESSOR 5306-00-889-3003 Bolt,u · 330570
2990-00-495-8118INTERCHANGEABLE
ADAPTER,MUFFLER
330571
5950-01-212-0000INTERCHANGEABLE
TRANSFORMER,POWER
322-800054-000
3020-01-234-3421INTERCHANGEABLE
GEAR ASSEMBLY,PLANET

Frequently Asked Questions

What is NSN 5306-00-911-4180?

NSN 5306-00-911-4180 is a Bolt,u, manufactured by Lowell Corporation Dba Porter Ferguson Div Porter Ferguson Division, classified under FSC 5306 (No Item Name Available). Status: active.

What are the part numbers for NSN 5306-00-911-4180?

NSN 5306-00-911-4180 has 2 cross-referenced part numbers: 330571 (Lowell Corporation Dba Porter Ferguson Div Porter Ferguson Division), 330570 (Cooper Industries Inc H K Porter/cooper Tools Div).

What NSN replaces 5306-00-911-4180?

There are 4 known substitutes for 5306-00-911-4180: 5306-00-889-3003, 2990-00-495-8118, 5950-01-212-0000 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 330571?

Key specifications for 330571: Thread Quantity Per Inch: 28; Thread Class: 2A A; Thread Direction: RIGHT-HAND; Thread Length: 0.750 INCHES NOMINAL IN. 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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