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Technical Data Sheet
PartsTable / COMPONENT / 2644190
2644190 ✓ Verified by PartsTable
— · BOLT SCREW
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

The SCREW,MACHINE is a the manufacturer industrial component. Key specifications include screw_material: STEEL CORROSION RESISTING, nominal_thread_diameter: 4.0 MILLIMETERS MM, thread_pitch_in_millimeters: 8.0. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-01-415-5517, 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
2644190
NSN: 5305-01-415-5517
FSC: 5305
CAGE: 58568 — ENVIROVAC INC DBA MONOGRAM SYSTEMS-ROCKFORD DIV (USA)
SPECIFICATIONS
screw_materialSTEEL CORROSION RESISTING
nominal_thread_diameter4.0 MILLIMETERS MM
thread_series_designatorM
thread_pitch_in_millimeters8.0
NSN5305-01-415-5517
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 2644190 · 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
•
THREAD SERIES DESIGNATOR: M
•
SCREW MATERIAL: STEEL CORROSION RESISTING
•
THREAD PITCH IN MILLIMETERS: 8.0
•
NOMINAL THREAD DIAMETER: 4.0 MILLIMETERS MM
TECHNICAL CHARACTERISTICS (FLIS)
THREAD SERIES DESIGNATORM
SCREW MATERIALSTEEL CORROSION RESISTING
THREAD PITCH IN MILLIMETERS8.0
NOMINAL THREAD DIAMETER4.0 MILLIMETERS MM
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
900147-1Interchangeable
interchangeable cross-reference
interchangeable
PFSC3-1-2-38Interchangeable
interchangeable cross-reference
interchangeable
550024-1Interchangeable
interchangeable cross-reference
interchangeable
550-024Interchangeable
interchangeable cross-reference
interchangeable
2644160Interchangeable
Same NIIN cross-reference
interchangeable
5500249Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2644190?
2644190 is a SCREW,MACHINE.
What parts can replace 2644190?
There are 6 known substitutes for 2644190: 900147-1, PFSC3-1-2-38, 550024-1 and 3 more. Substitute compatibility should be verified for your specific system.
Is 2644190 still available?
2644190 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026