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Technical Data Sheet
PartsTable / COMPONENT / 246-3
246-3 ✓ Verified by PartsTable
Multibrackets · NUT WASHER
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

Elegantly designed M Speaker Mount Plus wall support, designed for speakers up to 10Kg.<br><br>These clean designed wall mount speaker brackets are designed to fit most satellite speakers on the market. As universal wall support is also suitable for ceilings and sloping walls, and features a tilt and turn function to guarantee an optimal listening position. Installation is easy, and all mounting hardware is included.

The M Speaker Mount is designed for speakers weighing up to 10 kg.<br><br>Low profile design keeps speaker close to the wall yet still provides a swivel left and right 90 degrees and tilts up and down up to 20 degrees. The ingenious design allows for easy installation and adjustment. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-276-6779, indicating validated use in U.S.

government and defense logistics supply chains.

WHERE IT FITS
246-3
NSN: 5315-00-276-6779
FSC: 5315
CAGE: 56232 — LOCKHEED MARTIN CORPORATION DIV RMS - MITCHEL FIELD (USA)
SPECIFICATIONS
materialALUMINUM HANDLE
overall_length6.250 INCHES NOMINAL IN
drive_end_shapeHEXAGON SINGLE END INTERNAL
torque_capacity3.0 INCH-POUNDS MINIMUM AND 15.0 INCH-POUNDS MAXIMUM IN
special_featuresALUMINUM BODY WITH STAINLESS STEEL SHANK; 6 PCT ACCURACY IN CLOCKWISE DIRECTION ONLY; MAGNETIC BIT RETENTION
drive_surface_size0.250 INCHES NOMINAL SINGLE END IN
torque_signal_methodFEEL IMPULSE
torque_scale_graduation0.2 INCH-POUNDS IN
nondefinitive_spec/std_data3 TYPE AND A CLASS AND 1 STYLE AND B DESIGN
specification/standard_data05047 ASME B107.300 CAT 14 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
torque_indicating_mechanismMICROMETER
NSN5315-00-276-6779
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 246-3 · Multibrackets ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
DISTANCE FROM CENTERLINE OF HOLE TO END OF PIN: 0.188 INCHES NOMINAL IN
•
PIN OVERALL LENGTH: 3.250 INCHES NOMINAL IN
•
FIRST HOLE DIAMETER: 0.141 INCHES NOMINAL IN
•
PIN OVERALL DIAMETER: 0.5000 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
•
HOLE ARRANGEMENT STYLE: BOTH END DRILLED
•
FIRST END STYLE: SQUARE
•
SECOND HOLE DIAMETER: 0.141 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
DISTANCE FROM CENTERLINE OF HOLE TO END OF PIN0.188 INCHES NOMINAL IN
PIN OVERALL LENGTH3.250 INCHES NOMINAL IN
FIRST HOLE DIAMETER0.141 INCHES NOMINAL IN
PIN OVERALL DIAMETER0.5000 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
HOLE ARRANGEMENT STYLEBOTH END DRILLED
FIRST END STYLESQUARE
SECOND HOLE DIAMETER0.141 INCHES NOMINAL IN
SECOND END RELATIONSHIP WITH FIRST ENDIDENTICAL
CENTER TO CENTER DISTANCE BETWEEN HOLES2.875 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
D15-600LPC345-346-349Interchangeable
interchangeable cross-reference
interchangeable
D15-600VPC345-346-349Interchangeable
interchangeable cross-reference
interchangeable
D15-600WPC345-346-349Interchangeable
interchangeable cross-reference
interchangeable
2463Interchangeable
interchangeable cross-reference
interchangeable
M1M215603Interchangeable
interchangeable cross-reference
interchangeable
51028Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 246-3?
246-3 is a HOSE ASSEMBLY,NONMETALLIC manufactured by Multibrackets.
What parts can replace 246-3?
There are 18 known substitutes for 246-3: D15-600LPC345-346-349, D15-600VPC345-346-349, D15-600WPC345-346-349 and 15 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 246-3?
246-3 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-276-6779. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026