PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

FFB571TYPEA2Nut,plain,hexagon

Federal Specifications Promulgated by General Services Administration Washington DC · NSN 5310-00-176-8147 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-176-8147 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-176-8147. Primary manufacturer part number: FFB571TYPEA2.
Features
  • Nut,plain,hexagon — FSC 5310
  • Thread Quantity Per Inch: 24
  • Thread Series: UNF
  • Bearing Surface Type: CHAMFERED OR WASHER FACED
  • Nominal Thread Size: 0.375 INCHES IN
  • Thread Class: 2B
  • Nut Style: HEXAGON
  • Nut Height: 0.320 INCHES MINIMUM AND 0.337 INCHES MAXIMUM IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Copper Alloy Overall construction
General Description

The Nut,plain,hexagon, cataloged under National Stock Number 5310-00-176-8147, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Federal Specifications Promulgated by General Services Administration Washington DC. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-176-8147
Primary Part NumberFFB571TYPEA2
Item NameNut,plain,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerFederal Specifications Promulgated by General Services Administration Washington DC
StatusACTIVE
Thread Quantity Per Inch24
Thread SeriesUNF
Bearing Surface TypeCHAMFERED OR WASHER FACED
Nominal Thread Size0.375 INCHES IN
Thread Class2B
Nut StyleHEXAGON
Nut Height0.320 INCHES MINIMUM AND 0.337 INCHES MAXIMUM IN
Nondefinitive Spec/std DataA AND 2 TYPE
MaterialCOPPER ALLOY OVERALL
Width Across Flats0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
Thread DirectionRIGHT-HAND
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5310-00-057-1242 INTERCHANGEABLE
Nut,plain,hexagon
5310-00-079-599543-N-3938-4610 INTERCHANGEABLE
Nut,plain,hexagon
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5310-00-141-3033 INTERCHANGEABLE
Nut,plain,hexagon
5310-00-176-8145 INTERCHANGEABLE
Nut,plain,hexagon
5310-00-176-8149 INTERCHANGEABLE
Nut,plain,hexagon
5310-00-176-8150 INTERCHANGEABLE
Nut,plain,hexagon
5310-00-176-8151 INTERCHANGEABLE
Nut,plain,hexagon
5310-00-176-8152 INTERCHANGEABLE
Nut,plain,hexagon
5310-00-176-8154 INTERCHANGEABLE
Nut,plain,hexagon
5310-00-176-8169 INTERCHANGEABLE
Nut,plain,hexagon
Cross-Reference Index
Part NumberManufacturer
FFB571TYPEA2 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
325B6 Department of the Air Force (USA)
USAF325B6 Department of the Air Force (USA)
Related Parts
5310-00-057-1242INTERCHANGEABLE
NUT,PLAIN,HEXAGON
5310-00-079-5995INTERCHANGEABLE
NUT,PLAIN,HEXAGON
43-N-3938-4610
5310-00-141-3033INTERCHANGEABLE
NUT,PLAIN,HEXAGON
5310-00-176-8145INTERCHANGEABLE
NUT,PLAIN,HEXAGON
5310-00-176-8149INTERCHANGEABLE
NUT,PLAIN,HEXAGON
5310-00-176-8150INTERCHANGEABLE
NUT,PLAIN,HEXAGON
5310-00-176-8151INTERCHANGEABLE
NUT,PLAIN,HEXAGON
5310-00-176-8152INTERCHANGEABLE
NUT,PLAIN,HEXAGON
5310-00-176-8154INTERCHANGEABLE
NUT,PLAIN,HEXAGON
5310-00-176-8169INTERCHANGEABLE
NUT,PLAIN,HEXAGON
5310-00-176-8171INTERCHANGEABLE
NUT,PLAIN,HEXAGON
5310-00-176-8177INTERCHANGEABLE
NUT,PLAIN,HEXAGON

Frequently Asked Questions

What is NSN 5310-00-176-8147?

NSN 5310-00-176-8147 is a Nut,plain,hexagon, manufactured by Federal Specifications Promulgated by General Services Administration Washington DC, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-176-8147?

NSN 5310-00-176-8147 has 3 cross-referenced part numbers: FFB571TYPEA2 (Federal Specifications Promulgated by General Services Administration Washington DC), 325B6 (Department of the Air Force), USAF325B6 (Department of the Air Force).

What NSN replaces 5310-00-176-8147?

There are 12 known substitutes for 5310-00-176-8147: 5310-00-057-1242, 5310-00-079-5995, 5310-00-141-3033 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of FFB571TYPEA2?

Key specifications for FFB571TYPEA2: Thread Quantity Per Inch: 24; Thread Series: UNF; Bearing Surface Type: CHAMFERED OR WASHER FACED; Nominal Thread Size: 0.375 INCHES 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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