PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3072BBolt,machine

Siemens Energy, Inc. Dba Dresser-Rand · NSN 5306-00-271-8447 · FSC 5306 · No Item Name Available
Verified by PartsTable
NSN 5306-00-271-8447 — this item is cataloged by the U.S. Government under National Stock Number 5306-00-271-8447. Primary manufacturer part number: 3072B.
Features
  • Bolt,machine — FSC 5306
  • Head Height: 0.172 INCHES NOMINAL IN
  • Thread Length: 0.625 INCHES MINIMUM IN
  • Fastener Length: 1.250 INCHES NOMINAL IN
  • Head Style: HEXAGON
  • Thread Direction: RIGHT-HAND
  • Material Document and Classification: MIL-B-994A,COMP A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL A
  • Features Provided: FINISHED HEAD
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Copper Alloy 464 Overall construction
General Description

The Bolt,machine, cataloged under National Stock Number 5306-00-271-8447, is classified within Federal Supply Class 5306 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Siemens Energy, Inc. Dba Dresser-Rand. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 11 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5306-00-271-8447
Primary Part Number3072B
Item NameBolt,machine
FSC / FSG5306 / 53 — No Item Name Available
ManufacturerSiemens Energy, Inc. Dba Dresser-Rand
StatusACTIVE
Head Height0.172 INCHES NOMINAL IN
Thread Length0.625 INCHES MINIMUM IN
Fastener Length1.250 INCHES NOMINAL IN
Head StyleHEXAGON
Thread DirectionRIGHT-HAND
Material Document and ClassificationMIL-B-994A,COMP A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL A
Features ProvidedFINISHED HEAD
Distance From Head Largest Bearing Surface to Shank Hole Center0.156 INCHES NOMINAL FIRST HOLE IN
Thread Class3A A
Shank Unthreaded Hole Diameter0.078 INCHES NOMINAL FIRST HOLE IN
MaterialCOPPER ALLOY 464 OVERALL
Thread Quantity Per Inch18
Nondefinitive Spec/std Data2 TYPE AND 10P STYLE
Nominal Thread Diameter0.312 INCHES IN
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Width Between Flats0.594 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
Bolt,machine
5306-01-448-3920MS35307-348 SUCCESSOR
Bolt,machine
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
Cross-Reference Index
Part NumberManufacturer
3072B Siemens Energy, Inc. Dba Dresser-Rand (USA)
3072B Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions (USA)
156411PC115 Dresser-Rand Co Worthington Compressor Opn a Joint Venture (USA)
3072B Dresser-Rand Co Worthington Compressor Opn a Joint Venture (USA)
157440PC115 Dresser-Rand Co Worthington Compressor Opn a Joint Venture (USA)
157016PC115 Dresser-Rand Co Worthington Compressor Opn a Joint Venture (USA)
FF-S-85C Federal Specifications Promulgated by General Services Administration Washington DC (USA)
157437PC115 Dresser-Rand Co Worthington Compressor Opn a Joint Venture (USA)
157013PC115 Dresser-Rand Co Worthington Compressor Opn a Joint Venture (USA)
157441PC115 Dresser-Rand Co Worthington Compressor Opn a Joint Venture (USA)
157017PC115 Dresser-Rand Co Worthington Compressor Opn a Joint Venture (USA)
Related Parts
5306-00-272-4229SUCCESSOR
BOLT,MACHINE
5306-01-448-3920SUCCESSOR
BOLT,MACHINE
MS35307-348

Frequently Asked Questions

What is NSN 5306-00-271-8447?

NSN 5306-00-271-8447 is a Bolt,machine, manufactured by Siemens Energy, Inc. Dba Dresser-Rand, classified under FSC 5306 (No Item Name Available). Status: active.

What are the part numbers for NSN 5306-00-271-8447?

NSN 5306-00-271-8447 has 11 cross-referenced part numbers: 3072B (Siemens Energy, Inc. Dba Dresser-Rand), 3072B (Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions), 156411PC115 (Dresser-Rand Co Worthington Compressor Opn a Joint Venture), 3072B (Dresser-Rand Co Worthington Compressor Opn a Joint Venture), 157440PC115 (Dresser-Rand Co Worthington Compressor Opn a Joint Venture) and 6 more.

What NSN replaces 5306-00-271-8447?

There are 2 known substitutes for 5306-00-271-8447: 5306-00-272-4229, 5306-01-448-3920. Verify interchangeability with system specifications before substitution.

What are the specifications of 3072B?

Key specifications for 3072B: Head Height: 0.172 INCHES NOMINAL IN; Thread Length: 0.625 INCHES MINIMUM IN; Fastener Length: 1.250 INCHES NOMINAL IN; Head Style: HEXAGON. 16 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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