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346418PC7 — SCREW,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

346418PC7: SCREW,MACHINE.

The SCREW,MACHINE is a the manufacturer industrial component. Key specifications include head_style: FLAT COUNTERSUNK, thread_class: 2A A, head_diameter: 0.477 INCHES MINIMUM AND 0.507 INCHES MAXIMUM IN, thread_length: 0.472 INCHES NOMINAL IN, screw_material: STEEL COMP 1115 OR STEEL COMP 1117 OR STEEL COMP 1120, fastener_length: 0.625 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-00-271-6458, 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
346418PC7
NSN: 5305-00-271-6458
FSC: 5305 — Screws
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
head_styleFLAT COUNTERSUNK
thread_class2A A
head_diameter0.477 INCHES MINIMUM AND 0.507 INCHES MAXIMUM IN
thread_length0.472 INCHES NOMINAL IN
screw_materialSTEEL COMP 1115 OR STEEL COMP 1117 OR STEEL COMP 1120
fastener_length0.625 INCHES NOMINAL IN
thread_directionRIGHT-HAND
countersink_angle80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM
internal_drive_styleSLOT
nominal_thread_diameter0.250 INCHES IN
screw_surface_treatmentZINC
thread_quantity_per_inch28
NSN5305-00-271-6458
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 346418PC7 · 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
•
SCREW SURFACE TREATMENT: ZINC
•
FASTENER LENGTH: 0.625 INCHES NOMINAL IN
•
SCREW MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-18411,CL 1 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-18411,CL 1 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-18411,CL 1 MIL SPEC 3RD MATERIAL RESPONSE
•
THREAD LENGTH: 0.472 INCHES NOMINAL IN
•
NOMINAL THREAD DIAMETER: 0.250 INCHES IN
•
HEAD STYLE: FLAT COUNTERSUNK
•
THREAD DIRECTION: RIGHT-HAND
•
NONDEFINITIVE SPEC/STD DATA: I TYPE AND 2S STYLE
TECHNICAL CHARACTERISTICS
SCREW SURFACE TREATMENTZINC
FASTENER LENGTH0.625 INCHES NOMINAL IN
SCREW MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-18411,CL 1 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-18411,CL 1 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-18411,CL 1 MIL SPEC 3RD MATERIAL RESPONSE
THREAD LENGTH0.472 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER0.250 INCHES IN
HEAD STYLEFLAT COUNTERSUNK
THREAD DIRECTIONRIGHT-HAND
NONDEFINITIVE SPEC/STD DATAI TYPE AND 2S STYLE
SCREW MATERIALSTEEL COMP 1115 OR STEEL COMP 1117 OR STEEL COMP 1120
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 1
FFS92TYPE1STYLE2SReference document
Same NSN cross-reference
Reference document — Identification reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 346418PC7?
346418PC7 is a SCREW,MACHINE.
What parts can replace 346418PC7?
There is 1 known substitute for 346418PC7: FFS92TYPE1STYLE2S. Substitute compatibility should be verified for your specific system.
What is the NSN for 346418PC7?
346418PC7 is cataloged in the U.S. Government catalog under NSN 5305-00-271-6458. 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.