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BM3326-8-13Y — BOLT,SHOULDER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

BM3326-8-13Y: BOLT,SHOULDER.

The BOLT,SHOULDER is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, head_style: DOUBLE HEXAGON W/HOLE, head_height: 0.494 INCHES MINIMUM AND 0.514 INCHES MAXIMUM IN, thread_class: 3A A, thread_length: 0.742 INCHES MINIMUM AND 0.792 INCHES MAXIMUM IN, shoulder_shape: ROUND FIRST SHOULDER. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-084-1145, 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
BM3326-8-13Y
NSN: 5306-01-084-1145
FSC: 5306 — Bolts
CAGE: 17446 — HUCK INTERNATIONAL, INC (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
head_styleDOUBLE HEXAGON W/HOLE
head_height0.494 INCHES MINIMUM AND 0.514 INCHES MAXIMUM IN
thread_class3A A
thread_length0.742 INCHES MINIMUM AND 0.792 INCHES MAXIMUM IN
shoulder_shapeROUND FIRST SHOULDER
fastener_length1.564 INCHES MINIMUM AND 1.594 INCHES MAXIMUM IN
shoulder_length0.802 INCHES MINIMUM AND 0.822 INCHES MAXIMUM FIRST SHOULDER IN
thread_directionRIGHT-HAND
shoulder_diameter0.5302 INCHES MINIMUM AND 0.5307 INCHES MAXIMUM FIRST SHOULDER IN
width_between_flats0.553 INCHES MINIMUM AND 0.564 INCHES MAXIMUM IN
nominal_thread_diameter0.500 INCHES IN
NSN5306-01-084-1145
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: BM3326-8-13Y · 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
•
EXTENDED WASHER THICKNESS: 0.113 INCHES MINIMUM AND 0.133 INCHES MAXIMUM IN
•
HEAD HEIGHT: 0.494 INCHES MINIMUM AND 0.514 INCHES MAXIMUM IN
•
FASTENER LENGTH: 1.564 INCHES MINIMUM AND 1.594 INCHES MAXIMUM IN
•
SHOULDER LENGTH: 0.802 INCHES MINIMUM AND 0.822 INCHES MAXIMUM FIRST SHOULDER IN
•
EXTENDED WASHER DIAMETER: 0.818 INCHES MINIMUM AND 0.828 INCHES MAXIMUM IN
•
SHOULDER DIAMETER: 0.5302 INCHES MINIMUM AND 0.5307 INCHES MAXIMUM FIRST SHOULDER IN
•
THREAD LENGTH: 0.742 INCHES MINIMUM AND 0.792 INCHES MAXIMUM IN
•
SHOULDER SHAPE: ROUND FIRST SHOULDER
TECHNICAL CHARACTERISTICS
EXTENDED WASHER THICKNESS0.113 INCHES MINIMUM AND 0.133 INCHES MAXIMUM IN
HEAD HEIGHT0.494 INCHES MINIMUM AND 0.514 INCHES MAXIMUM IN
FASTENER LENGTH1.564 INCHES MINIMUM AND 1.594 INCHES MAXIMUM IN
SHOULDER LENGTH0.802 INCHES MINIMUM AND 0.822 INCHES MAXIMUM FIRST SHOULDER IN
EXTENDED WASHER DIAMETER0.818 INCHES MINIMUM AND 0.828 INCHES MAXIMUM IN
SHOULDER DIAMETER0.5302 INCHES MINIMUM AND 0.5307 INCHES MAXIMUM FIRST SHOULDER IN
THREAD LENGTH0.742 INCHES MINIMUM AND 0.792 INCHES MAXIMUM IN
SHOULDER SHAPEROUND FIRST SHOULDER
MATERIAL DOCUMENT AND CLASSIFICATION23-112 TYPE A FSCM 76301 MFR REF SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.500 INCHES 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 5
74328-8-13YReference document
Same NSN cross-reference
Reference document — Secondary reference
VS3061-8-13Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
MB87-8-13Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
VAL23033-8X13Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
ST3M607-8-13Same 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 BM3326-8-13Y?
BM3326-8-13Y is a BOLT,SHOULDER.
What parts can replace BM3326-8-13Y?
There are 5 known substitutes for BM3326-8-13Y: 74328-8-13Y, VS3061-8-13, MB87-8-13 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for BM3326-8-13Y?
BM3326-8-13Y is cataloged in the U.S. Government catalog under NSN 5306-01-084-1145. 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.