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90420A450 — SCREW,CAP,HEXAGON HEAD

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

90420A450: SCREW,CAP,HEXAGON HEAD.

The SCREW,CAP,HEXAGON HEAD is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, head_style: HEXAGON EXTENDED WASHER, head_height: 0.193 INCHES NOMINAL IN, thread_length: 0.750 INCHES NOMINAL IN, hardness_rating: 84.0 ROCKWELL B NOMINAL OVERALL, thread_direction: RIGHT-HAND. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-589-4750, 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
90420A450
NSN: 5305-01-589-4750
FSC: 5305 — Screws
CAGE: 2V507 — MCMASTER-CARR SUPPLY COMPANY (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
head_styleHEXAGON EXTENDED WASHER
head_height0.193 INCHES NOMINAL IN
thread_length0.750 INCHES NOMINAL IN
hardness_rating84.0 ROCKWELL B NOMINAL OVERALL
special_features0.750 INCHES NOMINAL LENGTH,HARDENED POINT,WEATHER RESISTANT COATED,18-8 STAINLESS STEEL,DRILL POINT:NUMBER 3,THREAD SIZE:10-16 IN
thread_directionRIGHT-HAND
width_between_flats0.312 INCHES NOMINAL IN
end_item_identification5895-01-561-3705 SATELLITE COMMUNICATION SUBSYSTEM,JNN TRAILER
nominal_thread_diameter0.190 INCHES IN
extended_washer_diameter0.414 INCHES NOMINAL IN
thread_quantity_per_inch16
NSN5305-01-589-4750
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 90420A450 · 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
•
HEAD HEIGHT: 0.193 INCHES NOMINAL IN
•
EXTENDED WASHER DIAMETER: 0.414 INCHES NOMINAL IN
•
THREAD LENGTH: 0.750 INCHES NOMINAL IN
•
HARDNESS RATING: 84.0 ROCKWELL B NOMINAL OVERALL
•
NOMINAL THREAD DIAMETER: 0.190 INCHES IN
•
HEAD STYLE: HEXAGON EXTENDED WASHER
•
THREAD DIRECTION: RIGHT-HAND
•
WIDTH BETWEEN FLATS: 0.312 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.193 INCHES NOMINAL IN
EXTENDED WASHER DIAMETER0.414 INCHES NOMINAL IN
THREAD LENGTH0.750 INCHES NOMINAL IN
HARDNESS RATING84.0 ROCKWELL B NOMINAL OVERALL
NOMINAL THREAD DIAMETER0.190 INCHES IN
HEAD STYLEHEXAGON EXTENDED WASHER
THREAD DIRECTIONRIGHT-HAND
WIDTH BETWEEN FLATS0.312 INCHES NOMINAL IN
SPECIAL FEATURES0.750 INCHES NOMINAL LENGTH,HARDENED POINT,WEATHER RESISTANT COATED,18-8 STAINLESS STEEL,DRILL POINT:NUMBER 3,THREAD SIZE:10-16 IN
PART NAME ASSIGNED BY CONTROLLING AGENCYTAPPING SCREW,SELF-DRILLING SCREW,HARDENED POINT,STAILESS STEEL,WEATHER RESISTANT COATED
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: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 90420A450?
90420A450 is a SCREW,CAP,HEXAGON HEAD.
What is the NSN for 90420A450?
90420A450 is cataloged in the U.S. Government catalog under NSN 5305-01-589-4750. 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.