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717511281-001 — BOLT,INTERNALLY RELIEVED BODY

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

717511281-001: BOLT,INTERNALLY RELIEVED BODY.

The BOLT,INTERNALLY RELIEVED BODY is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303 OVERALL, head_style: DISHED HEXAGON, head_height: 0.070 INCHES NOMINAL IN, thread_class: 2A A, thread_length: 0.580 INCHES NOMINAL IN, fastener_length: 0.735 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-333-6389, 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
717511281-001
NSN: 5306-01-333-6389
FSC: 5306 — Bolts
CAGE: 04939 — LOCKHEED MARTIN CORPORATION (USA)
SPECIFICATIONS
materialSTEEL COMP 303 OVERALL
head_styleDISHED HEXAGON
head_height0.070 INCHES NOMINAL IN
thread_class2A A
thread_length0.580 INCHES NOMINAL IN
fastener_length0.735 INCHES NOMINAL IN
special_featuresPOINT OF ITEM IS OVAL 0.054 IN. LONG WITH A RADIUS 0.042 IN.; ON OD OF ITEM HAS A SLOT 0.380 IN. MIN LONG FOR LOCKING IN
style_designatorCONCENTRIC HOLE UNTHREADED
thread_directionRIGHT-HAND
width_between_flats0.302 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN
nominal_thread_diameter0.312 INCHES IN
concentric_hole_diameter0.171 INCHES MINIMUM AND 0.177 INCHES MAXIMUM IN
NSN5306-01-333-6389
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 717511281-001 · 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: 0.070 INCHES NOMINAL IN
•
FASTENER LENGTH: 0.735 INCHES NOMINAL IN
•
THREAD LENGTH: 0.580 INCHES NOMINAL IN
•
STYLE DESIGNATOR: CONCENTRIC HOLE UNTHREADED
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.312 INCHES IN
•
HEAD STYLE: DISHED HEXAGON
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.070 INCHES NOMINAL IN
FASTENER LENGTH0.735 INCHES NOMINAL IN
THREAD LENGTH0.580 INCHES NOMINAL IN
STYLE DESIGNATORCONCENTRIC HOLE UNTHREADED
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.312 INCHES IN
HEAD STYLEDISHED HEXAGON
THREAD DIRECTIONRIGHT-HAND
WIDTH BETWEEN FLATS0.302 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN
CONCENTRIC HOLE DIAMETER0.171 INCHES MINIMUM AND 0.177 INCHES MAXIMUM 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 1
66673-1281Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 717511281-001?
717511281-001 is a BOLT,INTERNALLY RELIEVED BODY.
What parts can replace 717511281-001?
There is 1 known substitute for 717511281-001: 66673-1281. Substitute compatibility should be verified for your specific system.
What is the NSN for 717511281-001?
717511281-001 is cataloged in the U.S. Government catalog under NSN 5306-01-333-6389. 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.