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BB366-6-14 — BOLT,ASSEMBLED SLEEVE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

BB366-6-14: BOLT,ASSEMBLED SLEEVE.

The BOLT,ASSEMBLED SLEEVE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: FLAT COUNTERSUNKFLAT COUNTERSUNK, thread_class: 3A3A, head_diameter: 0.2466 INCHES MINIMUM AND 0.2466 INCHES MINIMUM AND 0.2514 INCHES MAXIMUM0.2514 INCHES MAXIMUM IN, thread_length: 0.304 INCHES NOMINAL0.304 INCHES NOMINAL IN, fastener_length: 1.165 INCHES MINIMUM AND 1.165 INCHES MINIMUM AND 1.167 INCHES MAXIMUM1.167 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-477-7463, 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
BB366-6-14
NSN: 5306-01-477-7463
FSC: 5306 — Bolts
CAGE: 73197 — HI-SHEAR CORPORATION (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleFLAT COUNTERSUNKFLAT COUNTERSUNK
thread_class3A3A
head_diameter0.2466 INCHES MINIMUM AND 0.2466 INCHES MINIMUM AND 0.2514 INCHES MAXIMUM0.2514 INCHES MAXIMUM IN
thread_length0.304 INCHES NOMINAL0.304 INCHES NOMINAL IN
fastener_length1.165 INCHES MINIMUM AND 1.165 INCHES MINIMUM AND 1.167 INCHES MAXIMUM1.167 INCHES MAXIMUM IN
thread_directionRIGHT-HANDRIGHT-HAND
countersink_angle100.0 DEGREES NOMINAL100.0 DEGREES NOMINAL
nominal_thread_diameter0.125 INCHES0.125 INCHES IN
thread_quantity_per_inch4040
thread_series_designatorUNJC
material_document_and_classificationAMS 5731 ASSN STD 1ST MATERIAL RESPONSE OR AMS 5737 ASSN STD 2ND MATERIAL RESPONSE OVERALL
NSN5306-01-477-7463
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: BB366-6-14 · 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
•
FASTENER LENGTH: 1.165 INCHES MINIMUM AND 1.165 INCHES MINIMUM AND 1.167 INCHES MAXIMUM1.167 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.304 INCHES NOMINAL0.304 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5731 ASSN STD 1ST MATERIAL RESPONSE OR AMS 5737 ASSN STD 2ND MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.125 INCHES0.125 INCHES IN
•
HEAD STYLE: FLAT COUNTERSUNKFLAT COUNTERSUNK
•
THREAD DIRECTION: RIGHT-HANDRIGHT-HAND
•
COUNTERSINK ANGLE: 100.0 DEGREES NOMINAL100.0 DEGREES NOMINAL
TECHNICAL CHARACTERISTICS
FASTENER LENGTH1.165 INCHES MINIMUM AND 1.165 INCHES MINIMUM AND 1.167 INCHES MAXIMUM1.167 INCHES MAXIMUM IN
THREAD LENGTH0.304 INCHES NOMINAL0.304 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5731 ASSN STD 1ST MATERIAL RESPONSE OR AMS 5737 ASSN STD 2ND MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.125 INCHES0.125 INCHES IN
HEAD STYLEFLAT COUNTERSUNKFLAT COUNTERSUNK
THREAD DIRECTIONRIGHT-HANDRIGHT-HAND
SPECIAL FEATURESASSEMBLY CONSISTS OF A CORE BOLT, SLEEVE, AND AN EXPANDER (NUT); EXPANDER HAS ELLIPTICALLY DISTORTED THREADS FOR SELF-LOCKINGASSEMBLY CONSISTS OF A CORE BOLT, SLEEVE, AND AN EXPANDER (NUT); EXPANDER HAS ELLIPTICALLY DISTORTED THREADS FOR SELF-LOCKING
COUNTERSINK ANGLE100.0 DEGREES NOMINAL100.0 DEGREES NOMINAL
THREAD CLASS3A3A
THREAD QUANTITY PER INCH4040
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
5057-6-14Reference 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 BB366-6-14?
BB366-6-14 is a BOLT,ASSEMBLED SLEEVE.
What parts can replace BB366-6-14?
There is 1 known substitute for BB366-6-14: 5057-6-14. Substitute compatibility should be verified for your specific system.
What is the NSN for BB366-6-14?
BB366-6-14 is cataloged in the U.S. Government catalog under NSN 5306-01-477-7463. 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.