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MB87-6-10 — BOLT,SHOULDER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

MB87-6-10: BOLT,SHOULDER.

The BOLT,SHOULDER is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: DOUBLE HEXAGON W/HOLE, head_height: 0.378 INCHES MINIMUM AND 0.398 INCHES MAXIMUM IN, thread_class: 3A A, thread_length: 0.589 INCHES MINIMUM AND 0.639 INCHES MAXIMUM IN, shoulder_shape: ROUND FIRST SHOULDER. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-045-2884, 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
MB87-6-10
NSN: 5306-01-045-2884
FSC: 5306 — Bolts
CAGE: 73197 — HI-SHEAR CORPORATION (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleDOUBLE HEXAGON W/HOLE
head_height0.378 INCHES MINIMUM AND 0.398 INCHES MAXIMUM IN
thread_class3A A
thread_length0.589 INCHES MINIMUM AND 0.639 INCHES MAXIMUM IN
shoulder_shapeROUND FIRST SHOULDER
fastener_length1.224 INCHES MINIMUM AND 1.254 INCHES MAXIMUM IN
shoulder_length0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM FIRST SHOULDER IN
thread_directionRIGHT-HAND
shoulder_diameter0.4052 INCHES MINIMUM AND 0.4057 INCHES MAXIMUM FIRST SHOULDER IN
width_between_flats0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN
nominal_thread_diameter0.375 INCHES IN
NSN5306-01-045-2884
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: MB87-6-10 · 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: 0.081 INCHES MINIMUM AND 0.101 INCHES MAXIMUM IN
•
HEAD HEIGHT: 0.378 INCHES MINIMUM AND 0.398 INCHES MAXIMUM IN
•
FASTENER LENGTH: 1.224 INCHES MINIMUM AND 1.254 INCHES MAXIMUM IN
•
SHOULDER LENGTH: 0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM FIRST SHOULDER IN
•
EXTENDED WASHER DIAMETER: 0.639 INCHES MINIMUM AND 0.649 INCHES MAXIMUM IN
•
SHOULDER DIAMETER: 0.4052 INCHES MINIMUM AND 0.4057 INCHES MAXIMUM FIRST SHOULDER IN
•
THREAD LENGTH: 0.589 INCHES MINIMUM AND 0.639 INCHES MAXIMUM IN
•
SHOULDER SHAPE: ROUND FIRST SHOULDER
TECHNICAL CHARACTERISTICS
EXTENDED WASHER THICKNESS0.081 INCHES MINIMUM AND 0.101 INCHES MAXIMUM IN
HEAD HEIGHT0.378 INCHES MINIMUM AND 0.398 INCHES MAXIMUM IN
FASTENER LENGTH1.224 INCHES MINIMUM AND 1.254 INCHES MAXIMUM IN
SHOULDER LENGTH0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM FIRST SHOULDER IN
EXTENDED WASHER DIAMETER0.639 INCHES MINIMUM AND 0.649 INCHES MAXIMUM IN
SHOULDER DIAMETER0.4052 INCHES MINIMUM AND 0.4057 INCHES MAXIMUM FIRST SHOULDER IN
THREAD LENGTH0.589 INCHES MINIMUM AND 0.639 INCHES MAXIMUM IN
SHOULDER SHAPEROUND FIRST SHOULDER
NOMINAL THREAD DIAMETER0.375 INCHES IN
HEAD STYLEDOUBLE HEXAGON W/HOLE
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 8
74328-6-10YReference document
Same NSN cross-reference
Reference document — Secondary reference
PBF1652-6-10Reference document
Same NSN cross-reference
Reference document — Secondary reference
VAL23033-6X10Reference document
Same NSN cross-reference
Reference document — Secondary reference
ST3M607-6-10Reference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
VS3061-6-10Reference document
Same NSN cross-reference
Reference document — Secondary reference
VAL23033-6-10XReference document
Same NSN cross-reference
Reference document — Secondary reference
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 MB87-6-10?
MB87-6-10 is a BOLT,SHOULDER.
What parts can replace MB87-6-10?
There are 8 known substitutes for MB87-6-10: 74328-6-10Y, PBF1652-6-10, VAL23033-6X10 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MB87-6-10?
MB87-6-10 is cataloged in the U.S. Government catalog under NSN 5306-01-045-2884. 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.