PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

280450PC252Bolt,machine

Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier · NSN 5306-00-275-9800 · FSC 5306 · No Item Name Available
Verified by PartsTable
NSN 5306-00-275-9800 — this item is cataloged by the U.S. Government under National Stock Number 5306-00-275-9800. Primary manufacturer part number: 280450PC252.
Features
  • Bolt,machine — FSC 5306
  • Head Style: HEXAGON
  • Thread Class: 2A A
  • Thread Length: 1.000 INCHES MINIMUM IN
  • Fastener Length: 1.500 INCHES NOMINAL IN
  • Thread Quantity Per Inch: 16
  • Head Height: 0.234 INCHES NOMINAL IN
  • Nominal Thread Diameter: 0.375 INCHES IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Bolt,machine, cataloged under National Stock Number 5306-00-275-9800, 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 14 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5306-00-275-9800
Primary Part Number280450PC252
Item NameBolt,machine
FSC / FSG5306 / 53 — No Item Name Available
ManufacturerNavair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
StatusACTIVE
Head StyleHEXAGON
Thread Class2A A
Thread Length1.000 INCHES MINIMUM IN
Fastener Length1.500 INCHES NOMINAL IN
Thread Quantity Per Inch16
Head Height0.234 INCHES NOMINAL IN
Nominal Thread Diameter0.375 INCHES IN
Thread DirectionRIGHT-HAND
Features ProvidedFINISHED HEAD
Width Between Flats0.544 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
Nondefinitive Spec/std DataB TYPE AND A CLASS
MaterialSTEEL OVERALL
Surface TreatmentZINC OVERALL
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
Bolt,machine
Bolt,machine
Bolt,machine
Bolt,machine
Bolt,machine
Bolt,machine
Bolt,machine
5305-00-174-9462 INTERCHANGEABLE
Screw,cap,hexagon Head
5306-00-272-5104 INTERCHANGEABLE
Bolt,machine
5306-00-299-2343 INTERCHANGEABLE
Bolt,machine
Cross-Reference Index
Part NumberManufacturer
MILB857TYPE2GRADE2 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
280450PC252 PRIMARY Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
Related Parts
5306-00-174-9458SUCCESSOR
BOLT,MACHINE
5306-00-174-9463SUCCESSOR
BOLT,MACHINE
5306-00-174-9530SUCCESSOR
BOLT,MACHINE
5306-00-281-3741SUCCESSOR
BOLT,MACHINE
5306-00-299-2336SUCCESSOR
BOLT,MACHINE
5306-00-299-2339SUCCESSOR
BOLT,MACHINE
5306-00-299-2380SUCCESSOR
BOLT,MACHINE
5305-00-174-9462INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
5306-00-272-5104INTERCHANGEABLE
BOLT,MACHINE
5306-00-299-2343INTERCHANGEABLE
BOLT,MACHINE
5305-00-299-2366INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
5306-00-299-2368INTERCHANGEABLE
BOLT,MACHINE

Frequently Asked Questions

What is NSN 5306-00-275-9800?

NSN 5306-00-275-9800 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: active.

What are the part numbers for NSN 5306-00-275-9800?

NSN 5306-00-275-9800 has 2 cross-referenced part numbers: MILB857TYPE2GRADE2 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 280450PC252 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).

What NSN replaces 5306-00-275-9800?

There are 12 known substitutes for 5306-00-275-9800: 5306-00-174-9458, 5306-00-174-9463, 5306-00-174-9530 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 280450PC252?

Key specifications for 280450PC252: Head Style: HEXAGON; Thread Class: 2A A; Thread Length: 1.000 INCHES MINIMUM IN; Fastener Length: 1.500 INCHES NOMINAL IN. 14 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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