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122-4323780 — BOLT,SHOULDER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

122-4323780: BOLT,SHOULDER.

The BOLT,SHOULDER is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: HEXAGON, head_height: 1.250 INCHES NOMINAL IN, thread_class: 2A A, thread_length: 1.730 INCHES NOMINAL IN, shoulder_shape: ROUND FIRST SHOULDER. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-338-6774, 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
122-4323780
NSN: 5306-01-338-6774
FSC: 5306 — Bolts
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleHEXAGON
head_height1.250 INCHES NOMINAL IN
thread_class2A A
thread_length1.730 INCHES NOMINAL IN
shoulder_shapeROUND FIRST SHOULDER
fastener_length2.062 INCHES NOMINAL IN
shoulder_length1.812 INCHES NOMINAL FIRST SHOULDER IN
special_featuresDRILL AND TAP 0.125 LONGITUDALLY
thread_directionRIGHT-HAND
shoulder_diameter1.625 INCHES NOMINAL FIRST SHOULDER IN
width_between_flats2.625 INCHES NOMINAL IN
NSN5306-01-338-6774
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 122-4323780 · 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: 1.250 INCHES NOMINAL IN
•
FASTENER LENGTH: 2.062 INCHES NOMINAL IN
•
SHOULDER LENGTH: 1.812 INCHES NOMINAL FIRST SHOULDER IN
•
SHOULDER DIAMETER: 1.625 INCHES NOMINAL FIRST SHOULDER IN
•
THREAD LENGTH: 1.730 INCHES NOMINAL IN
•
SHOULDER SHAPE: ROUND FIRST SHOULDER
•
NOMINAL THREAD DIAMETER: 1.500 INCHES IN
•
HEAD STYLE: HEXAGON
TECHNICAL CHARACTERISTICS
HEAD HEIGHT1.250 INCHES NOMINAL IN
FASTENER LENGTH2.062 INCHES NOMINAL IN
SHOULDER LENGTH1.812 INCHES NOMINAL FIRST SHOULDER IN
SHOULDER DIAMETER1.625 INCHES NOMINAL FIRST SHOULDER IN
THREAD LENGTH1.730 INCHES NOMINAL IN
SHOULDER SHAPEROUND FIRST SHOULDER
NOMINAL THREAD DIAMETER1.500 INCHES IN
HEAD STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
WIDTH BETWEEN FLATS2.625 INCHES NOMINAL 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
122-4323780 PIECE 70Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 122-4323780?
122-4323780 is a BOLT,SHOULDER.
What parts can replace 122-4323780?
There is 1 known substitute for 122-4323780: 122-4323780 PIECE 70. Substitute compatibility should be verified for your specific system.
What is the NSN for 122-4323780?
122-4323780 is cataloged in the U.S. Government catalog under NSN 5306-01-338-6774. 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.