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66053-708 — BOLT,INTERNAL WRENCHING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

66053-708: BOLT,INTERNAL WRENCHING.

The BOLT,INTERNAL WRENCHING is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303 OVERALL, head_height: 0.688 INCHES NOMINAL IN, thread_class: 2A A, head_diameter: 0.875 INCHES NOMINAL IN, thread_length: 0.375 INCHES MINIMUM IN, fastener_length: 1.469 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-200-8494, 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
66053-708
NSN: 5306-00-200-8494
FSC: 5306 — Bolts
CAGE: 12436 — BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INTEGRATION INC. DIV BAE SYSTEMS INFORMATION & ELECTRONIC SYSTEMS INTEGRATION INC (USA)
SPECIFICATIONS
materialSTEEL COMP 303 OVERALL
head_height0.688 INCHES NOMINAL IN
thread_class2A A
head_diameter0.875 INCHES NOMINAL IN
thread_length0.375 INCHES MINIMUM IN
fastener_length1.469 INCHES NOMINAL IN
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE OVERALL
width_across_flats0.313 INCHES NOMINAL IN
internal_drive_styleHEXAGON
nominal_thread_diameter0.375 INCHES IN
first_diameter_from_head0.288 INCHES NOMINAL IN
NSN5306-00-200-8494
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 66053-708 · 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 ACROSS FLATS: 0.313 INCHES NOMINAL IN
•
HEAD HEIGHT: 0.688 INCHES NOMINAL IN
•
FASTENER LENGTH: 1.469 INCHES NOMINAL IN
•
THREAD LENGTH: 0.375 INCHES MINIMUM IN
•
FIRST DIAMETER FROM HEAD: 0.288 INCHES NOMINAL IN
•
NOMINAL THREAD DIAMETER: 0.375 INCHES IN
•
THREAD DIRECTION: RIGHT-HAND
•
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER: 0.906 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.313 INCHES NOMINAL IN
HEAD HEIGHT0.688 INCHES NOMINAL IN
FASTENER LENGTH1.469 INCHES NOMINAL IN
THREAD LENGTH0.375 INCHES MINIMUM IN
FIRST DIAMETER FROM HEAD0.288 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER0.375 INCHES IN
THREAD DIRECTIONRIGHT-HAND
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER0.906 INCHES NOMINAL IN
SURFACE TREATMENTPASSIVATE OVERALL
INTERNAL DRIVE STYLEHEXAGON
OTHER ITEMS IN FSC 5306 — Bolts
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5306-00-004-7044 5306-00-007-6129 5306-00-008-7899 5306-00-009-4739 5306-00-118-7332 5306-00-151-1777 5306-00-255-4507 5306-01-101-2459
SUBSTITUTES & CROSS-REFERENCES 1
A9140059Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
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 66053-708?
66053-708 is a BOLT,INTERNAL WRENCHING.
What parts can replace 66053-708?
There is 1 known substitute for 66053-708: A9140059. Substitute compatibility should be verified for your specific system.
What is the NSN for 66053-708?
66053-708 is cataloged in the U.S. Government catalog under NSN 5306-00-200-8494. 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.