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3G4052 — BOLT,RIBBED SHOULDER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

3G4052: BOLT,RIBBED SHOULDER.

The BOLT,RIBBED SHOULDER is a the manufacturer industrial component. Key specifications include head_style: FLAT CHAMFER, rib_length: 0.220 INCHES MINIMUM AND 0.280 INCHES MAXIMUM IN, head_height: 0.310 INCHES MINIMUM AND 0.340 INCHES MAXIMUM IN, rib_quantity: 29, thread_class: 2A A, head_diameter: 1.440 INCHES MINIMUM AND 1.560 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-202-6850, 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
3G4052
NSN: 5306-01-202-6850
FSC: 5306 — Bolts
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
head_styleFLAT CHAMFER
rib_length0.220 INCHES MINIMUM AND 0.280 INCHES MAXIMUM IN
head_height0.310 INCHES MINIMUM AND 0.340 INCHES MAXIMUM IN
rib_quantity29
thread_class2A A
head_diameter1.440 INCHES MINIMUM AND 1.560 INCHES MAXIMUM IN
thread_length1.550 INCHES NOMINAL IN
fastener_length2.590 INCHES MINIMUM AND 2.650 INCHES MAXIMUM IN
shoulder_length0.220 INCHES MINIMUM AND 0.280 INCHES MAXIMUM SECOND SHOULDER IN
thread_directionRIGHT-HAND
nominal_thread_diameter0.750 INCHES IN
thread_quantity_per_inch16
NSN5306-01-202-6850
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 3G4052 · 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: 0.310 INCHES MINIMUM AND 0.340 INCHES MAXIMUM IN
•
FASTENER LENGTH: 2.590 INCHES MINIMUM AND 2.650 INCHES MAXIMUM IN
•
SHOULDER LENGTH: 0.220 INCHES MINIMUM AND 0.280 INCHES MAXIMUM SECOND SHOULDER IN
•
DISTANCE FROM LARGEST DIAMETER OF BEARING SURFACE OF HEAD TO RIBS: 0.160 INCHES MINIMUM AND 0.220 INCHES MAXIMUM IN
•
THREAD LENGTH: 1.550 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE GR 8 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
RIB LENGTH: 0.220 INCHES MINIMUM AND 0.280 INCHES MAXIMUM IN
•
NOMINAL THREAD DIAMETER: 0.750 INCHES IN
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.310 INCHES MINIMUM AND 0.340 INCHES MAXIMUM IN
FASTENER LENGTH2.590 INCHES MINIMUM AND 2.650 INCHES MAXIMUM IN
SHOULDER LENGTH0.220 INCHES MINIMUM AND 0.280 INCHES MAXIMUM SECOND SHOULDER IN
DISTANCE FROM LARGEST DIAMETER OF BEARING SURFACE OF HEAD TO RIBS0.160 INCHES MINIMUM AND 0.220 INCHES MAXIMUM IN
THREAD LENGTH1.550 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONSAE GR 8 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
RIB LENGTH0.220 INCHES MINIMUM AND 0.280 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.750 INCHES IN
HEAD STYLEFLAT CHAMFER
THREAD DIRECTIONRIGHT-HAND
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 3G4052?
3G4052 is a BOLT,RIBBED SHOULDER.
What is the NSN for 3G4052?
3G4052 is cataloged in the U.S. Government catalog under NSN 5306-01-202-6850. 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.