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F280419 — BOLT,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

F280419: BOLT,MACHINE.

The BOLT,MACHINE is a the manufacturer industrial component. Key specifications include head_style: HEXAGON, grip_length: 0.113 INCHES MINIMUM AND 0.116 INCHES MAXIMUM IN, head_height: 0.138 INCHES MINIMUM AND 0.148 INCHES MAXIMUM IN, thread_class: 2A A, thread_length: 0.252 INCHES MINIMUM IN, fastener_length: 0.398 INCHES MINIMUM AND 0.400 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-452-2866, 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
F280419
NSN: 5306-00-452-2866
FSC: 5306 — Bolts
CAGE: 03950 — NAVAL INVENTORY CONTROL POINT MECHANICSBURG (USA)
SPECIFICATIONS
head_styleHEXAGON
grip_length0.113 INCHES MINIMUM AND 0.116 INCHES MAXIMUM IN
head_height0.138 INCHES MINIMUM AND 0.148 INCHES MAXIMUM IN
thread_class2A A
thread_length0.252 INCHES MINIMUM IN
fastener_length0.398 INCHES MINIMUM AND 0.400 INCHES MAXIMUM IN
features_providedFINISHED HEAD
width_between_flats0.339 INCHES MINIMUM AND 0.344 INCHES MAXIMUM IN
nominal_thread_diameter0.190 INCHES IN
thread_quantity_per_inch32
thread_series_designatorUNF
part_name_assigned_by_controlling_agencyNAVY SPECIAL PROJECT
NSN5306-00-452-2866
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: F280419 · 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
•
HEAD HEIGHT: 0.138 INCHES MINIMUM AND 0.148 INCHES MAXIMUM IN
•
FASTENER LENGTH: 0.398 INCHES MINIMUM AND 0.400 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.252 INCHES MINIMUM IN
•
NOMINAL THREAD DIAMETER: 0.190 INCHES IN
•
FEATURES PROVIDED: FINISHED HEAD
•
HEAD STYLE: HEXAGON
•
GRIP LENGTH: 0.113 INCHES MINIMUM AND 0.116 INCHES MAXIMUM IN
•
WIDTH BETWEEN FLATS: 0.339 INCHES MINIMUM AND 0.344 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.138 INCHES MINIMUM AND 0.148 INCHES MAXIMUM IN
FASTENER LENGTH0.398 INCHES MINIMUM AND 0.400 INCHES MAXIMUM IN
THREAD LENGTH0.252 INCHES MINIMUM IN
NOMINAL THREAD DIAMETER0.190 INCHES IN
FEATURES PROVIDEDFINISHED HEAD
HEAD STYLEHEXAGON
GRIP LENGTH0.113 INCHES MINIMUM AND 0.116 INCHES MAXIMUM IN
WIDTH BETWEEN FLATS0.339 INCHES MINIMUM AND 0.344 INCHES MAXIMUM IN
PART NAME ASSIGNED BY CONTROLLING AGENCYNAVY SPECIAL PROJECT
THREAD CLASS2A A
OTHER ITEMS IN FSC 5306 — Bolts
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5306-00-001-1276 5306-00-001-1949 5306-00-001-1988 5306-00-001-1989 5306-00-001-1990 5306-00-001-1991 5306-00-001-1993 5306-00-001-2017
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is F280419?
F280419 is a BOLT,MACHINE.
What is the NSN for F280419?
F280419 is cataloged in the U.S. Government catalog under NSN 5306-00-452-2866. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.