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3723955 — BOLT,RIBBED SHOULDER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

3723955: BOLT,RIBBED SHOULDER.

The BOLT,RIBBED SHOULDER is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: FLAT CHAMFER, rib_length: 0.500 INCHES NOMINAL IN, head_height: 0.320 INCHES NOMINAL IN, rib_quantity: 36, head_diameter: 1.180 INCHES MINIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-705-1962, 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
3723955
NSN: 5306-00-705-1962
FSC: 5306 — Bolts
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleFLAT CHAMFER
rib_length0.500 INCHES NOMINAL IN
head_height0.320 INCHES NOMINAL IN
rib_quantity36
head_diameter1.180 INCHES MINIMUM IN
thread_length1.060 INCHES MINIMUM IN
shoulder_shapeROUND SECOND SHOULDER
fastener_length2.380 INCHES NOMINAL IN
shoulder_length0.740 INCHES NOMINAL FIRST SHOULDER IN
thread_directionLEFT-HAND
shoulder_diameter0.780 INCHES MINIMUM AND 0.784 INCHES MAXIMUM SECOND SHOULDER IN
NSN5306-00-705-1962
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 3723955 · 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: 0.320 INCHES NOMINAL IN
•
FASTENER LENGTH: 2.380 INCHES NOMINAL IN
•
SHOULDER LENGTH: 0.260 INCHES NOMINAL SECOND SHOULDER IN
•
DISTANCE FROM LARGEST DIAMETER OF BEARING SURFACE OF HEAD TO RIBS: 0.240 INCHES NOMINAL IN
•
SHOULDER DIAMETER: 0.780 INCHES MINIMUM AND 0.784 INCHES MAXIMUM SECOND SHOULDER IN
•
THREAD LENGTH: 1.060 INCHES MINIMUM IN
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.320 INCHES NOMINAL IN
FASTENER LENGTH2.380 INCHES NOMINAL IN
SHOULDER LENGTH0.260 INCHES NOMINAL SECOND SHOULDER IN
SHOULDER LENGTH0.740 INCHES NOMINAL FIRST SHOULDER IN
DISTANCE FROM LARGEST DIAMETER OF BEARING SURFACE OF HEAD TO RIBS0.240 INCHES NOMINAL IN
SHOULDER DIAMETER0.780 INCHES MINIMUM AND 0.784 INCHES MAXIMUM SECOND SHOULDER IN
SHOULDER DIAMETER0.785 INCHES MINIMUM AND 0.790 INCHES MAXIMUM FIRST SHOULDER IN
THREAD LENGTH1.060 INCHES MINIMUM IN
SHOULDER SHAPEROUND SECOND SHOULDER
SHOULDER SHAPERIBBED FIRST SHOULDER
SUBSTITUTES & CROSS-REFERENCES 1
85629Reference 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 3723955?
3723955 is a BOLT,RIBBED SHOULDER.
What parts can replace 3723955?
There is 1 known substitute for 3723955: 85629. Substitute compatibility should be verified for your specific system.
What is the NSN for 3723955?
3723955 is cataloged in the U.S. Government catalog under NSN 5306-00-705-1962. 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.