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PartsTable / COMPONENT / 280451PC46
280451PC46 ✓ Verified by PartsTable
— · BOLT SCREW
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

The SCREW,MACHINE is a the manufacturer industrial component. Key specifications include head_style: HEXAGON, head_height: 0.270 INCHES MINIMUM AND 0.295 INCHES MAXIMUM IN, thread_class: 2A A, thread_length: 0.625 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN, screw_material: STEEL CORROSION RESISTING, fastener_length: 0.750 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-271-2068, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
280451PC46
NSN: 5305-00-271-2068
FSC: 5305
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
head_styleHEXAGON
head_height0.270 INCHES MINIMUM AND 0.295 INCHES MAXIMUM IN
thread_class2A A
thread_length0.625 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
screw_materialSTEEL CORROSION RESISTING
fastener_length0.750 INCHES NOMINAL IN
thread_directionRIGHT-HAND
width_between_flats0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
internal_drive_styleSLOT
nominal_thread_diameter0.375 INCHES IN
screw_surface_treatmentPASSIVATE
minimum_tensile_strength80000 POUNDS PER SQUARE INCH LBS
NSN5305-00-271-2068
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 280451PC46 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
WIDTH BETWEEN FLATS: 0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
•
SCREW MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD SINGLE MATERIAL RESPONSE
•
SCREW SURFACE TREATMENT: PASSIVATE
•
HEAD STYLE: HEXAGON
•
THREAD CLASS: 2A A
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
•
INTERNAL DRIVE STYLE: SLOT
•
HEAD HEIGHT: 0.270 INCHES MINIMUM AND 0.295 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
WIDTH BETWEEN FLATS0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
SCREW MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD SINGLE MATERIAL RESPONSE
SCREW SURFACE TREATMENTPASSIVATE
HEAD STYLEHEXAGON
THREAD CLASS2A A
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
INTERNAL DRIVE STYLESLOT
HEAD HEIGHT0.270 INCHES MINIMUM AND 0.295 INCHES MAXIMUM IN
THREAD QUANTITY PER INCH16
SCREW MATERIALSTEEL CORROSION RESISTING
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
3-4APC7Interchangeable
interchangeable cross-reference
interchangeable
3-4WPC7Interchangeable
interchangeable cross-reference
interchangeable
118-32ALT2PC4Interchangeable
interchangeable cross-reference
interchangeable
FFS85TYPE1STYLE10SInterchangeable
interchangeable cross-reference
interchangeable
280451PC28Interchangeable
interchangeable cross-reference
interchangeable
FF-S-92 TY I STY 10SInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 280451PC46?
280451PC46 is a SCREW,MACHINE.
What parts can replace 280451PC46?
There are 21 known substitutes for 280451PC46: 3-4APC7, 3-4WPC7, 118-32ALT2PC4 and 18 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 280451PC46?
280451PC46 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-271-2068. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026