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90055A146 — SCREW,TAPPING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

90055A146: SCREW,TAPPING.

The SCREW,TAPPING is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: FLAT COUNTERSUNK, fastener_length: 0.375 INCHES NOMINAL IN, countersink_angle: 82.0 DEGREES NOMINAL, surface_treatment: ZINC OVERALL, internal_drive_style: CROSS RECESS TYPE 1. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-499-2869, 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
90055A146
NSN: 5305-01-499-2869
FSC: 5305 — Screws
CAGE: 39428 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleFLAT COUNTERSUNK
fastener_length0.375 INCHES NOMINAL IN
countersink_angle82.0 DEGREES NOMINAL
surface_treatmentZINC OVERALL
internal_drive_styleCROSS RECESS TYPE 1
end_item_identification4940-01-445-0086
nonmachine_thread_styleBLUNT (TYPE TT)
nonmachine_nominal_thread_diameter0.138 INCHES IN
NSN5305-01-499-2869
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 90055A146 · 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
•
NONMACHINE NOMINAL THREAD DIAMETER: 0.138 INCHES IN
•
FASTENER LENGTH: 0.375 INCHES NOMINAL IN
•
NONMACHINE THREAD STYLE: BLUNT (TYPE TT)
•
HEAD STYLE: FLAT COUNTERSUNK
•
SURFACE TREATMENT: ZINC OVERALL
•
INTERNAL DRIVE STYLE: CROSS RECESS TYPE 1
•
COUNTERSINK ANGLE: 82.0 DEGREES NOMINAL
TECHNICAL CHARACTERISTICS
NONMACHINE NOMINAL THREAD DIAMETER0.138 INCHES IN
FASTENER LENGTH0.375 INCHES NOMINAL IN
NONMACHINE THREAD STYLEBLUNT (TYPE TT)
HEAD STYLEFLAT COUNTERSUNK
SURFACE TREATMENTZINC OVERALL
INTERNAL DRIVE STYLECROSS RECESS TYPE 1
COUNTERSINK ANGLE82.0 DEGREES NOMINAL
END ITEM IDENTIFICATION4940-01-445-0086
MATERIALSTEEL OVERALL
OTHER ITEMS IN FSC 5305 — Screws
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5305-00-000-0094 5305-00-000-1397 5305-00-000-2625 5305-00-000-3669 5305-00-000-3830 5305-00-000-3831
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 90055A146?
90055A146 is a SCREW,TAPPING.
What is the NSN for 90055A146?
90055A146 is cataloged in the U.S. Government catalog under NSN 5305-01-499-2869. 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.