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Technical Data Sheet
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5210306 PART 17 — BOLT,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

5210306 PART 17: BOLT,MACHINE.

The BOLT,MACHINE is a the manufacturer industrial component. Key specifications include thread_class: 2A A, thread_length: 8.250 INCHES NOMINAL IN, special_features: BOLT IS A TYPE 1, GRADE 5; PART OF WINCH BED ASSEMBLY, thread_direction: RIGHT-HAND, end_item_identification: NAVY EQUIPMENT, nominal_thread_diameter: 1.250 INCHES IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-476-2378, 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
5210306 PART 17
NSN: 5306-01-476-2378
FSC: 5306 — Bolts
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
thread_class2A A
thread_length8.250 INCHES NOMINAL IN
special_featuresBOLT IS A TYPE 1, GRADE 5; PART OF WINCH BED ASSEMBLY
thread_directionRIGHT-HAND
end_item_identificationNAVY EQUIPMENT
nominal_thread_diameter1.250 INCHES IN
thread_quantity_per_inch7
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
NSN5306-01-476-2378
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 5210306 PART 17 · 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
•
THREAD LENGTH: 8.250 INCHES NOMINAL IN
•
NOMINAL THREAD DIAMETER: 1.250 INCHES IN
•
THREAD DIRECTION: RIGHT-HAND
•
THREAD CLASS: 2A A
•
THREAD QUANTITY PER INCH: 7
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
TECHNICAL CHARACTERISTICS
THREAD LENGTH8.250 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER1.250 INCHES IN
THREAD DIRECTIONRIGHT-HAND
SPECIAL FEATURESBOLT IS A TYPE 1, GRADE 5; PART OF WINCH BED ASSEMBLY
THREAD CLASS2A A
END ITEM IDENTIFICATIONNAVY EQUIPMENT
THREAD QUANTITY PER INCH7
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
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 5210306 PART 17?
5210306 PART 17 is a BOLT,MACHINE.
What is the NSN for 5210306 PART 17?
5210306 PART 17 is cataloged in the U.S. Government catalog under NSN 5306-01-476-2378. 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.