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512542 — BOLT,ECCENTRIC HEAD

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

512542: BOLT,ECCENTRIC HEAD.

The BOLT,ECCENTRIC HEAD is a the manufacturer industrial component. Key specifications include head_style: ROUND W/WRENCH FLATS, head_height: 0.065 INCHES NOMINAL IN, thread_class: 3A A, head_diameter: 1.006 INCHES NOMINAL IN, fastener_length: 0.562 INCHES NOMINAL IN, thread_direction: RIGHT-HAND. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-939-9678, 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
512542
NSN: 5306-00-939-9678
FSC: 5306 — Bolts
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
head_styleROUND W/WRENCH FLATS
head_height0.065 INCHES NOMINAL IN
thread_class3A A
head_diameter1.006 INCHES NOMINAL IN
fastener_length0.562 INCHES NOMINAL IN
thread_directionRIGHT-HAND
part_name_assigned_by_controlling_agencyNAVY SPECIAL PROJECT
distance_from_center_of_head_to_center_of_shank0.283 INCHES NOMINAL IN
NSN5306-00-939-9678
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 512542 · 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: 0.065 INCHES NOMINAL IN
•
FASTENER LENGTH: 0.562 INCHES NOMINAL IN
•
DISTANCE FROM CENTER OF HEAD TO CENTER OF SHANK: 0.283 INCHES NOMINAL IN
•
HEAD STYLE: ROUND W/WRENCH FLATS
•
THREAD DIRECTION: RIGHT-HAND
•
THREAD CLASS: 3A A
•
HEAD DIAMETER: 1.006 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.065 INCHES NOMINAL IN
FASTENER LENGTH0.562 INCHES NOMINAL IN
DISTANCE FROM CENTER OF HEAD TO CENTER OF SHANK0.283 INCHES NOMINAL IN
HEAD STYLEROUND W/WRENCH FLATS
THREAD DIRECTIONRIGHT-HAND
PART NAME ASSIGNED BY CONTROLLING AGENCYNAVY SPECIAL PROJECT
THREAD CLASS3A A
HEAD DIAMETER1.006 INCHES NOMINAL IN
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 512542?
512542 is a BOLT,ECCENTRIC HEAD.
What is the NSN for 512542?
512542 is cataloged in the U.S. Government catalog under NSN 5306-00-939-9678. 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.