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Technical Data Sheet
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B3146 ✓ Verified by PartsTable
— · BOLT SCREW
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

The LOCK,AIRCRAFT GROUND SAFETY is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY BODY, lens_type: CONVEX, KNURLED SINGLE LIGHT FIRST POSITION HORIZONTAL, body_width: 2.625 INCHES MAXIMUM IN, bore_shape: STRAIGHT, lens_color: RED SINGLE LIGHT FIRST POSITION HORIZONTAL, body_height: 3.000 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-616-2807, 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
B3146
NSN: 5305-00-616-2807
FSC: 5305
CAGE: 06987 — FL AEROSPACE CORP JANITROL AERO DIV/GENERAL DESIGN (USA)
SPECIFICATIONS
materialCOPPER ALLOY BODY
lens_typeCONVEX, KNURLED SINGLE LIGHT FIRST POSITION HORIZONTAL
body_width2.625 INCHES MAXIMUM IN
bore_shapeSTRAIGHT
lens_colorRED SINGLE LIGHT FIRST POSITION HORIZONTAL
body_height3.000 INCHES MAXIMUM IN
body_length2.875 INCHES MAXIMUM IN
bore_diameter90.00 MILLIMETERS NOMINAL MM
hole_diameter0.406 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
lens_quantity1
overall_width30.0 MILLIMETERS NOMINAL MM
inclosure_typeHERMETICALLY SEALED
NSN5305-00-616-2807
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: B3146 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
H146Interchangeable
interchangeable cross-reference
interchangeable
BAF8Interchangeable
interchangeable cross-reference
interchangeable
3146Interchangeable
interchangeable cross-reference
interchangeable
B3146Interchangeable
interchangeable cross-reference
interchangeable
SS411B2-10AInterchangeable
Same NIIN cross-reference
interchangeable
MS35273-4Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B3146?
B3146 is a LOCK,AIRCRAFT GROUND SAFETY.
What parts can replace B3146?
There are 7 known substitutes for B3146: H146, BAF8, 3146 and 4 more. Substitute compatibility should be verified for your specific system.
Is B3146 still available?
B3146 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026