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Technical Data Sheet
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330-4026-050 — SCREW,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

330-4026-050: SCREW,MACHINE.

The SCREW,MACHINE is a the manufacturer industrial component. Key specifications include head_style: HEXAGON, head_height: 0.049 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN, thread_class: 2A A, thread_length: 0.310 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN, screw_material: STEEL COMP 303, fastener_length: 0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-124-1220, 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
330-4026-050
NSN: 5305-01-124-1220
FSC: 5305 — Screws
CAGE: 13499 — ROCKWELL COLLINS, INC. DBA COLLINS AEROSPACE GOVERNMENT SYSTEMS DIV COLLINS AEROSPACE - GOVERNMENT SYSTEMS (USA)
SPECIFICATIONS
head_styleHEXAGON
head_height0.049 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN
thread_class2A A
thread_length0.310 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN
screw_materialSTEEL COMP 303
fastener_length0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
width_between_flats0.181 INCHES MINIMUM AND 0.187 INCHES MAXIMUM IN
internal_drive_styleSLOT
nominal_thread_diameter0.112 INCHES IN
screw_surface_treatmentPASSIVATE
thread_quantity_per_inch40
NSN5305-01-124-1220
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 330-4026-050 · 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: 0.049 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN
•
SCREW SURFACE TREATMENT: PASSIVATE
•
FASTENER LENGTH: 0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.310 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN
•
NOMINAL THREAD DIAMETER: 0.112 INCHES IN
•
HEAD STYLE: HEXAGON
•
THREAD DIRECTION: RIGHT-HAND
•
WIDTH BETWEEN FLATS: 0.181 INCHES MINIMUM AND 0.187 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.049 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN
SCREW SURFACE TREATMENTPASSIVATE
FASTENER LENGTH0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN
THREAD LENGTH0.310 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.112 INCHES IN
HEAD STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
WIDTH BETWEEN FLATS0.181 INCHES MINIMUM AND 0.187 INCHES MAXIMUM IN
SCREW MATERIALSTEEL COMP 303
INTERNAL DRIVE STYLESLOT
OTHER ITEMS IN FSC 5305 — Screws
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5305-00-001-5016 5305-00-001-9160 5305-00-001-9629 5305-00-001-9742 5305-00-001-9768 5305-00-003-4306 5305-00-003-6694 5305-00-003-6753
SUBSTITUTES & CROSS-REFERENCES 1
P330-4026-050Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 330-4026-050?
330-4026-050 is a SCREW,MACHINE.
What parts can replace 330-4026-050?
There is 1 known substitute for 330-4026-050: P330-4026-050. Substitute compatibility should be verified for your specific system.
What is the NSN for 330-4026-050?
330-4026-050 is cataloged in the U.S. Government catalog under NSN 5305-01-124-1220. 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.