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6293113 — BOLT,RIBBED SHOULDER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

6293113: BOLT,RIBBED SHOULDER.

The BOLT,RIBBED SHOULDER is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1340 OR STEEL COMP 4140 OR STEEL COMP 8640 OR STEEL COMP 8740 OVERALL, head_style: HEXAGON, rib_length: 1.000 INCHES NOMINAL IN, head_height: 0.312 INCHES NOMINAL IN, thread_class: 2A A, thread_length: 1.000 INCHES MINIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-629-3113, 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
6293113
NSN: 5306-00-629-3113
FSC: 5306 — Bolts
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialSTEEL COMP 1340 OR STEEL COMP 4140 OR STEEL COMP 8640 OR STEEL COMP 8740 OVERALL
head_styleHEXAGON
rib_length1.000 INCHES NOMINAL IN
head_height0.312 INCHES NOMINAL IN
thread_class2A A
thread_length1.000 INCHES MINIMUM IN
shoulder_shapeRIBBED FIRST SHOULDER
fastener_length4.125 INCHES NOMINAL IN
hardness_rating30.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM OVERALL
shoulder_length1.812 INCHES NOMINAL FIRST SHOULDER IN
special_featuresTAPPED HOLE IN.HEAD 5/8-18 UNF-2A BY 1.062 IN. LG A
thread_directionRIGHT-HAND
NSN5306-00-629-3113
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 6293113 · 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: 0.312 INCHES NOMINAL IN
•
FASTENER LENGTH: 4.125 INCHES NOMINAL IN
•
SHOULDER LENGTH: 1.812 INCHES NOMINAL FIRST SHOULDER IN
•
SHOULDER DIAMETER: 1.123 INCHES MINIMUM AND 1.124 INCHES MAXIMUM FIRST SHOULDER IN
•
THREAD LENGTH: 1.000 INCHES MINIMUM IN
•
SHOULDER SHAPE: RIBBED FIRST SHOULDER
•
HARDNESS RATING: 30.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: AISI ASSN STD ALL MATERIAL RESPONSES OR SAE ASSN STD ALL MATERIAL RESPONSES OR 66 FED STD ALL MATERIAL RESPONSES OVERALL
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.312 INCHES NOMINAL IN
FASTENER LENGTH4.125 INCHES NOMINAL IN
SHOULDER LENGTH1.812 INCHES NOMINAL FIRST SHOULDER IN
SHOULDER DIAMETER1.123 INCHES MINIMUM AND 1.124 INCHES MAXIMUM FIRST SHOULDER IN
THREAD LENGTH1.000 INCHES MINIMUM IN
SHOULDER SHAPERIBBED FIRST SHOULDER
HARDNESS RATING30.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONAISI ASSN STD ALL MATERIAL RESPONSES OR SAE ASSN STD ALL MATERIAL RESPONSES OR 66 FED STD ALL MATERIAL RESPONSES OVERALL
RIB LENGTH1.000 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER1.000 INCHES IN
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

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 6293113?
6293113 is a BOLT,RIBBED SHOULDER.
What is the NSN for 6293113?
6293113 is cataloged in the U.S. Government catalog under NSN 5306-00-629-3113. 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.