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90278A334 — SCREW,SHOULDER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

90278A334: SCREW,SHOULDER.

The SCREW,SHOULDER is a the manufacturer industrial component. Key specifications include material: STEEL PROPERTY CLASS 18.8 OVERALL, thread_length: 6.0 MILLIMETERS NOMINAL MM, fastener_length: 21.0 MILLIMETERS NOMINAL MM, thread_direction: RIGHT-HAND, end_item_identification: STRYKER, nominal_thread_diameter: 5.0 MILLIMETERS MM. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-562-8320, 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
90278A334
NSN: 5305-01-562-8320
FSC: 5305 — Screws
CAGE: 39428 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
materialSTEEL PROPERTY CLASS 18.8 OVERALL
thread_length6.0 MILLIMETERS NOMINAL MM
fastener_length21.0 MILLIMETERS NOMINAL MM
thread_directionRIGHT-HAND
end_item_identificationSTRYKER
nominal_thread_diameter5.0 MILLIMETERS MM
part_name_assigned_by_controlling_agencyPRECISION SHOULDER SCREW
NSN5305-01-562-8320
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 90278A334 · 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
•
FASTENER LENGTH: 21.0 MILLIMETERS NOMINAL MM
•
THREAD LENGTH: 6.0 MILLIMETERS NOMINAL MM
•
NOMINAL THREAD DIAMETER: 5.0 MILLIMETERS MM
•
THREAD DIRECTION: RIGHT-HAND
•
MATERIAL: STEEL PROPERTY CLASS 18.8 OVERALL
TECHNICAL CHARACTERISTICS
FASTENER LENGTH21.0 MILLIMETERS NOMINAL MM
THREAD LENGTH6.0 MILLIMETERS NOMINAL MM
NOMINAL THREAD DIAMETER5.0 MILLIMETERS MM
THREAD DIRECTIONRIGHT-HAND
PART NAME ASSIGNED BY CONTROLLING AGENCYPRECISION SHOULDER SCREW
END ITEM IDENTIFICATIONSTRYKER
MATERIALSTEEL PROPERTY CLASS 18.8 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
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 90278A334?
90278A334 is a SCREW,SHOULDER.
What is the NSN for 90278A334?
90278A334 is cataloged in the U.S. Government catalog under NSN 5305-01-562-8320. 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.