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321-0408-000 — SCREW,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

321-0408-000: SCREW,MACHINE.

The SCREW,MACHINE is a the manufacturer industrial component. Key specifications include head_style: FILLISTER, head_height: 0.038 INCHES MINIMUM AND 0.043 INCHES MAXIMUM IN, thread_class: 2A A, head_diameter: 0.083 INCHES MINIMUM AND 0.096 INCHES MAXIMUM IN, thread_length: 0.057 INCHES MINIMUM AND 0.067 INCHES MAXIMUM IN, screw_material: STEEL CORROSION RESISTING. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-104-6743, 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
321-0408-000
NSN: 5305-01-104-6743
FSC: 5305 — Screws
CAGE: 13499 — ROCKWELL COLLINS, INC. DBA COLLINS AEROSPACE GOVERNMENT SYSTEMS DIV COLLINS AEROSPACE - GOVERNMENT SYSTEMS (USA)
SPECIFICATIONS
head_styleFILLISTER
head_height0.038 INCHES MINIMUM AND 0.043 INCHES MAXIMUM IN
thread_class2A A
head_diameter0.083 INCHES MINIMUM AND 0.096 INCHES MAXIMUM IN
thread_length0.057 INCHES MINIMUM AND 0.067 INCHES MAXIMUM IN
screw_materialSTEEL CORROSION RESISTING
fastener_length0.057 INCHES MINIMUM AND 0.067 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
internal_drive_styleSLOT
nominal_thread_diameter0.060 INCHES IN
screw_surface_treatmentPASSIVATE
thread_quantity_per_inch80
NSN5305-01-104-6743
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 321-0408-000 · 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: 0.038 INCHES MINIMUM AND 0.043 INCHES MAXIMUM IN
•
SCREW SURFACE TREATMENT: PASSIVATE
•
FASTENER LENGTH: 0.057 INCHES MINIMUM AND 0.067 INCHES MAXIMUM IN
•
SCREW MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE
•
THREAD LENGTH: 0.057 INCHES MINIMUM AND 0.067 INCHES MAXIMUM IN
•
NOMINAL THREAD DIAMETER: 0.060 INCHES IN
•
HEAD STYLE: FILLISTER
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.038 INCHES MINIMUM AND 0.043 INCHES MAXIMUM IN
SCREW SURFACE TREATMENTPASSIVATE
FASTENER LENGTH0.057 INCHES MINIMUM AND 0.067 INCHES MAXIMUM IN
SCREW MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE
THREAD LENGTH0.057 INCHES MINIMUM AND 0.067 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.060 INCHES IN
HEAD STYLEFILLISTER
THREAD DIRECTIONRIGHT-HAND
SCREW MATERIALSTEEL CORROSION RESISTING
INTERNAL DRIVE STYLESLOT
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 321-0408-000?
321-0408-000 is a SCREW,MACHINE.
What is the NSN for 321-0408-000?
321-0408-000 is cataloged in the U.S. Government catalog under NSN 5305-01-104-6743. 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.