PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

12Z24PC421Bolt,machine

Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier · NSN 5306-00-637-9675 · FSC 5306 · No Item Name Available
Verified by PartsTable
NSN 5306-00-637-9675 — this item is cataloged by the U.S. Government under National Stock Number 5306-00-637-9675. Primary manufacturer part number: 12Z24PC421.
Features
  • Bolt,machine — FSC 5306
  • Head Style: HEXAGON
  • Surface Treatment: PASSIVATE OVERALL
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
  • Thread Quantity Per Inch: 18
  • Nominal Thread Diameter: 0.312 INCHES IN
  • Features Provided: FINISHED HEAD
  • Minimum Tensile Strength: 80000 POUNDS PER SQUARE INCH LBS
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 301 or Steel Comp 302 or Steel Comp 303 or Steel Comp 303f or Steel Comp 303SE or Steel Comp 304 or Steel Comp 304l or Steel Comp 305 or Steel Comp 308 or Steel Comp 309 or Steel Comp 309s or Steel Comp 310 or Steel Comp 310s or Steel Comp 314 or Steel Comp 316 or Steel Comp 316l or Steel Comp 317 or Steel Comp 321 or Steel Comp 323 or Steel Comp 324 or Steel Comp 347 or Steel Comp 348 or Steel Comp 385 Overall construction
General Description

The Bolt,machine, cataloged under National Stock Number 5306-00-637-9675, is classified within Federal Supply Class 5306 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 20 commercial cross-references from 16 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5306-00-637-9675
Primary Part Number12Z24PC421
Item NameBolt,machine
FSC / FSG5306 / 53 — No Item Name Available
ManufacturerNavair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
StatusCANCELLED
Head StyleHEXAGON
Surface TreatmentPASSIVATE OVERALL
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Thread Quantity Per Inch18
Nominal Thread Diameter0.312 INCHES IN
Features ProvidedFINISHED HEAD
Minimum Tensile Strength80000 POUNDS PER SQUARE INCH LBS
Fastener Length0.719 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
Thread Class2A A
Minimum Yield Strength30000 POUNDS PER SQUARE INCH LBS
Head Height0.195 INCHES MINIMUM AND 0.211 INCHES MAXIMUM IN
Thread DirectionRIGHT-HAND
MaterialSTEEL COMP 301 OR STEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 303F OR STEEL COMP 303SE OR STEEL COMP 304 OR STEEL COMP 304L OR STEEL COMP 305 OR STEEL COMP 308 OR STEEL COMP 309 OR STEEL COMP 309S OR STEEL COMP 310 OR STEEL COMP 310S OR STEEL COMP 314 OR STEEL COMP 316 OR STEEL COMP 316L OR STEEL COMP 317 OR STEEL COMP 321 OR STEEL COMP 323 OR STEEL COMP 324 OR STEEL COMP 347 OR STEEL COMP 348 OR STEEL COMP 385 OVERALL
Width Between Flats0.489 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
Thread Length0.608 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
Surface Treatment Document and ClassificationQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Hardness Rating80.0 ROCKWELL B MINIMUM OVERALL
Surface Finish63.0 MICROINCHES THREADS
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5306-00-225-8516MS90725-52 SUCCESSOR
Bolt,machine
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5306-00-225-9095MS90726-40 SUCCESSOR
Bolt,machine
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5306-00-226-4824AEB02C312625WA6AA1 SUCCESSOR
Bolt,machine
The American Society of Mechanical Engineers
5306-00-226-4838AEB02C312C25AW9A91 SUCCESSOR
Bolt,machine
The American Society of Mechanical Engineers
5306-00-226-4840B1821BH031C375N SUCCESSOR
Bolt,machine
American National Standards Institute Incorporated Dba American National Standards Institute
Bolt,machine
5306-00-469-0516000-14671PC60 SUCCESSOR
Bolt,machine
Sparling Instruments, Incorporated
5306-00-050-1237AEB02F312625AW9A91 SUCCESSOR
Bolt,machine
The American Society of Mechanical Engineers
5306-00-051-4086B1821BH031F300N SUCCESSOR
Bolt,machine
American National Standards Institute Incorporated Dba American National Standards Institute
5306-00-051-4087AEB02F312C25AW9A91 SUCCESSOR
Bolt,machine
The American Society of Mechanical Engineers
Cross-Reference Index
Part NumberManufacturer
12Z24PC421 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
F18 Tld Ace Corp Div Tld Ace (USA)
MX-243766 PIECE 23 The Babcock & Wilcox Company Dba B & W Service Co Div B&w Service Company (USA)
3176210-A-545 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
NB51151406 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
900020-2 Joy Mfg Co Air Power Group Michigan City Plant (USA)
SPP61-0155 Ward Leonard Ct Llc (USA)
FF-S-85 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
MS3507-332 Zf Industrieantriebe Witten Gmbh (DEU)
93543212 Kidde Fire Fighting, Inc. Div National Foam (USA)
NASM35307-332 National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
330C889A5018D12 Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA)
177031PC16 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
82-2205-0075 Pierce Manufacturing Inc (USA)
N-667 PC 24 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
645A560H27 Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA)
AMD-1403 ITEM 18 Appleton Marine Inc (USA)
MS35307-332 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
717124433103 Ncb Hungary (honvedsegi Egyseges Termekkod) (HUN)
5306PL1337115 Jednolity Indeks Materialowy - Uniform Material Index (POL)
Related Parts
5306-00-225-8516SUCCESSOR
BOLT,MACHINE
MS90725-52
5306-00-225-9095SUCCESSOR
BOLT,MACHINE
MS90726-40
5306-00-226-4824SUCCESSOR
BOLT,MACHINE
AEB02C312625WA6AA1
5306-00-226-4838SUCCESSOR
BOLT,MACHINE
AEB02C312C25AW9A91
5306-00-226-4840SUCCESSOR
BOLT,MACHINE
B1821BH031C375N
5306-00-270-8275SUCCESSOR
BOLT,MACHINE
5306-00-469-0516SUCCESSOR
BOLT,MACHINE
000-14671PC60
5306-00-050-1237SUCCESSOR
BOLT,MACHINE
AEB02F312625AW9A91
5306-00-051-4086SUCCESSOR
BOLT,MACHINE
B1821BH031F300N
5306-00-051-4087SUCCESSOR
BOLT,MACHINE
AEB02F312C25AW9A91
5306-00-051-4091SUCCESSOR
BOLT,MACHINE
B1821BH031F425N
5306-00-051-4092SUCCESSOR
BOLT,MACHINE
B1821BH031F450N

Frequently Asked Questions

What is NSN 5306-00-637-9675?

NSN 5306-00-637-9675 is a Bolt,machine, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 5306 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5306-00-637-9675?

NSN 5306-00-637-9675 has 20 cross-referenced part numbers: 12Z24PC421 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), F18 (Tld Ace Corp Div Tld Ace), MX-243766 PIECE 23 (The Babcock & Wilcox Company Dba B & W Service Co Div B&w Service Company), 3176210-A-545 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), NB51151406 (Leslie Controls, Inc. Dba Leslie Controls Inc) and 15 more.

What NSN replaces 5306-00-637-9675?

There are 12 known substitutes for 5306-00-637-9675: 5306-00-225-8516, 5306-00-225-9095, 5306-00-226-4824 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 12Z24PC421?

Key specifications for 12Z24PC421: Head Style: HEXAGON; Surface Treatment: PASSIVATE OVERALL; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC); Thread Quantity Per Inch: 18. 19 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5306-00-637-9675 still in active supply?

NSN 5306-00-637-9675 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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