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Technical Data Sheet
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246-33821 — BOLT,SHOULDER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

246-33821: BOLT,SHOULDER.

The BOLT,SHOULDER is a the manufacturer industrial component. Key specifications include head_height: 0.188 INCHES NOMINAL IN, thread_class: 3A A, head_diameter: 1.250 INCHES NOMINAL IN, thread_length: 0.355 INCHES NOMINAL IN, fastener_length: 1.906 INCHES NOMINAL IN, shank_unthreaded_hole_diameter: 0.106 INCHES NOMINAL FIRST HOLE IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-445-7380, 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
246-33821
NSN: 5306-00-445-7380
FSC: 5306 — Bolts
CAGE: 43999 — THE BOEING COMPANY DIV LEGACY AM&M (USA)
SPECIFICATIONS
head_height0.188 INCHES NOMINAL IN
thread_class3A A
head_diameter1.250 INCHES NOMINAL IN
thread_length0.355 INCHES NOMINAL IN
fastener_length1.906 INCHES NOMINAL IN
shank_unthreaded_hole_diameter0.106 INCHES NOMINAL FIRST HOLE IN
distance_from_centerline_to_flat0.500 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
part_name_assigned_by_controlling_agencyNAVY SPECIAL PROJECT
NSN5306-00-445-7380
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 246-33821 · 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: 0.188 INCHES NOMINAL IN
•
FASTENER LENGTH: 1.906 INCHES NOMINAL IN
•
DISTANCE FROM CENTERLINE TO FLAT: 0.500 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.355 INCHES NOMINAL IN
•
SHANK UNTHREADED HOLE DIAMETER: 0.106 INCHES NOMINAL FIRST HOLE IN
•
THREAD CLASS: 3A A
•
HEAD DIAMETER: 1.250 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.188 INCHES NOMINAL IN
FASTENER LENGTH1.906 INCHES NOMINAL IN
DISTANCE FROM CENTERLINE TO FLAT0.500 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
THREAD LENGTH0.355 INCHES NOMINAL IN
SHANK UNTHREADED HOLE DIAMETER0.106 INCHES NOMINAL FIRST HOLE IN
PART NAME ASSIGNED BY CONTROLLING AGENCYNAVY SPECIAL PROJECT
THREAD CLASS3A A
HEAD DIAMETER1.250 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

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 246-33821?
246-33821 is a BOLT,SHOULDER.
What is the NSN for 246-33821?
246-33821 is cataloged in the U.S. Government catalog under NSN 5306-00-445-7380. 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.