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ST3M729-5D13 — BOLT,CLOSE TOLERANCE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

ST3M729-5D13: BOLT,CLOSE TOLERANCE.

The BOLT,CLOSE TOLERANCE is a the manufacturer industrial component. Key specifications include material: STEEL COMP XM-13 OVERALL, head_style: DOUBLE HEXAGON, grip_length: 0.802 INCHES MINIMUM AND 0.822 INCHES MAXIMUM IN, head_height: 0.177 INCHES MINIMUM AND 0.197 INCHES MAXIMUM IN, thread_class: 3A A, grip_diameter: 0.3115 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-030-1765, 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
ST3M729-5D13
NSN: 5306-01-030-1765
FSC: 5306 — Bolts
CAGE: 17446 — HUCK INTERNATIONAL, INC (USA)
SPECIFICATIONS
materialSTEEL COMP XM-13 OVERALL
head_styleDOUBLE HEXAGON
grip_length0.802 INCHES MINIMUM AND 0.822 INCHES MAXIMUM IN
head_height0.177 INCHES MINIMUM AND 0.197 INCHES MAXIMUM IN
thread_class3A A
grip_diameter0.3115 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM IN
thread_length0.349 INCHES MINIMUM AND 0.416 INCHES MAXIMUM IN
fastener_length1.171 INCHES MINIMUM AND 1.218 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
width_between_flats0.492 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN
nominal_thread_diameter0.312 INCHES IN
thread_quantity_per_inch24
NSN5306-01-030-1765
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: ST3M729-5D13 · 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: 0.177 INCHES MINIMUM AND 0.197 INCHES MAXIMUM IN
•
FASTENER LENGTH: 1.171 INCHES MINIMUM AND 1.218 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.349 INCHES MINIMUM AND 0.416 INCHES MAXIMUM IN
•
SHANK UNTHREADED HOLE DIAMETER: 0.076 INCHES MINIMUM AND 0.081 INCHES MAXIMUM FIRST HOLE IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.312 INCHES IN
•
HEAD STYLE: DOUBLE HEXAGON
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.177 INCHES MINIMUM AND 0.197 INCHES MAXIMUM IN
FASTENER LENGTH1.171 INCHES MINIMUM AND 1.218 INCHES MAXIMUM IN
THREAD LENGTH0.349 INCHES MINIMUM AND 0.416 INCHES MAXIMUM IN
SHANK UNTHREADED HOLE DIAMETER0.076 INCHES MINIMUM AND 0.081 INCHES MAXIMUM FIRST HOLE IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.312 INCHES IN
HEAD STYLEDOUBLE HEXAGON
THREAD DIRECTIONRIGHT-HAND
GRIP LENGTH0.802 INCHES MINIMUM AND 0.822 INCHES MAXIMUM IN
WIDTH BETWEEN FLATS0.492 INCHES MINIMUM AND 0.502 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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is ST3M729-5D13?
ST3M729-5D13 is a BOLT,CLOSE TOLERANCE.
What is the NSN for ST3M729-5D13?
ST3M729-5D13 is cataloged in the U.S. Government catalog under NSN 5306-01-030-1765. 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.