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A963 — SEMICONDUCTOR DEVICE,DIODE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

A963: SEMICONDUCTOR DEVICE,DIODE.

The SEMICONDUCTOR DEVICE,DIODE is a the manufacturer industrial component. Key specifications include material: SILICON SEMICONDUCTOR, hole_type: DRILLED, head_style: SQUARE, design_type: LIMITED, head_height: 0.156 INCHES NOMINAL IN, point_style: CHAMFER DOG. This part is cataloged in the U.S.

Government catalog under NSN 5305-00-272-6224, 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
A963
NSN: 5305-00-272-6224
NIINs: 002726224, 004626104, 009075243, 013257012
FSC: 5305 — Screws
CAGE: 24617 — GENERAL MOTORS CORP (USA)
SPECIFICATIONS
materialSILICON SEMICONDUCTOR
hole_typeDRILLED
head_styleSQUARE
design_typeLIMITED
head_height0.156 INCHES NOMINAL IN
point_styleCHAMFER DOG
point_length0.188 INCHES NOMINAL IN
thread_class3A A
hole_diameter0.064 INCHES NOMINAL IN
hole_quantity1
thread_length0.469 INCHES MINIMUM IN
overall_length0.265 INCHES MAXIMUM IN
NSN5305-00-272-6224
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: A963 · 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
•
POINT DIAMETER: 0.312 INCHES NOMINAL IN
•
HEAD HEIGHT: 0.156 INCHES NOMINAL IN
•
POINT LENGTH: 0.188 INCHES NOMINAL IN
•
FASTENER LENGTH: 0.719 INCHES NOMINAL IN
•
THREAD LENGTH: 0.469 INCHES MINIMUM IN
•
HOLE CONFIGURATION STYLE: SQUARE LONGITUDINAL HOLE
•
POINT CHAMFER ANGLE: 30.0 DEGREES NOMINAL
•
NOMINAL THREAD DIAMETER: 0.375 INCHES IN
TECHNICAL CHARACTERISTICS
POINT DIAMETER0.312 INCHES NOMINAL IN
HEAD HEIGHT0.156 INCHES NOMINAL IN
POINT LENGTH0.188 INCHES NOMINAL IN
FASTENER LENGTH0.719 INCHES NOMINAL IN
THREAD LENGTH0.469 INCHES MINIMUM IN
HOLE CONFIGURATION STYLESQUARE LONGITUDINAL HOLE
POINT CHAMFER ANGLE30.0 DEGREES NOMINAL
NOMINAL THREAD DIAMETER0.375 INCHES IN
FEATURES PROVIDEDCASEHARDENED
HEAD STYLESQUARE
SUBSTITUTES & CROSS-REFERENCES 1
355550SReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is A963?
A963 is a SEMICONDUCTOR DEVICE,DIODE.
What parts can replace A963?
There is 1 known substitute for A963: 355550S. Substitute compatibility should be verified for your specific system.
What is the NSN for A963?
A963 is cataloged in the U.S. Government catalog under NSN 5305-00-272-6224. 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.