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557228 — SCREW,TAPPING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

557228: SCREW,TAPPING.

The SCREW,TAPPING is a the manufacturer industrial component. Key specifications include material: STEEL COMP 302 OVERALL, head_style: PAN, head_height: 2.6 MILLIMETERS NOMINAL MM, head_diameter: 6.9 MILLIMETERS NOMINAL MM, fastener_length: 13.0 MILLIMETERS NOMINAL MM, internal_drive_style: CROSS RECESS TYPE 1. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-628-6479, 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
557228
NSN: 5305-01-628-6479
FSC: 5305 — Screws
CAGE: 5PFF0 — HYDREMA U.S., INC. DBA HYDREMA US INC (USA)
SPECIFICATIONS
materialSTEEL COMP 302 OVERALL
head_stylePAN
head_height2.6 MILLIMETERS NOMINAL MM
head_diameter6.9 MILLIMETERS NOMINAL MM
fastener_length13.0 MILLIMETERS NOMINAL MM
internal_drive_styleCROSS RECESS TYPE 1
end_item_identification2355-22-622-7966
nonmachine_thread_styleCONE POINT (TYPE BP)
nonmachine_nominal_thread_diameter3.5 MILLIMETERS MM
part_name_assigned_by_controlling_agencyPHILLIPS SCREW FOR SHEET METAL
NSN5305-01-628-6479
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 557228 · 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
•
NONMACHINE NOMINAL THREAD DIAMETER: 3.5 MILLIMETERS MM
•
HEAD HEIGHT: 2.6 MILLIMETERS NOMINAL MM
•
FASTENER LENGTH: 13.0 MILLIMETERS NOMINAL MM
•
NONMACHINE THREAD STYLE: CONE POINT (TYPE BP)
•
HEAD STYLE: PAN
•
INTERNAL DRIVE STYLE: CROSS RECESS TYPE 1
TECHNICAL CHARACTERISTICS
NONMACHINE NOMINAL THREAD DIAMETER3.5 MILLIMETERS MM
HEAD HEIGHT2.6 MILLIMETERS NOMINAL MM
FASTENER LENGTH13.0 MILLIMETERS NOMINAL MM
NONMACHINE THREAD STYLECONE POINT (TYPE BP)
HEAD STYLEPAN
INTERNAL DRIVE STYLECROSS RECESS TYPE 1
PART NAME ASSIGNED BY CONTROLLING AGENCYPHILLIPS SCREW FOR SHEET METAL
END ITEM IDENTIFICATION2355-22-622-7966
MATERIALSTEEL COMP 302 OVERALL
HEAD DIAMETER6.9 MILLIMETERS NOMINAL MM
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
94997A300Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 557228?
557228 is a SCREW,TAPPING.
What parts can replace 557228?
There is 1 known substitute for 557228: 94997A300. Substitute compatibility should be verified for your specific system.
What is the NSN for 557228?
557228 is cataloged in the U.S. Government catalog under NSN 5305-01-628-6479. This indicates validated use in U.S. government and defense supply chains.
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