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Technical Data Sheet
PartsTable / COMPONENT / 5740575
5740575 ✓ 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 ASSY. VENT is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-01-188-0492, 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
5740575
NSN: 5305-01-188-0492
FSC: 5305
CAGE: 34623 — AM GENERAL LLC (USA)
SPECIFICATIONS
Part Number5740575
NSN5305-01-188-0492
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 5740575 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
21663Interchangeable
interchangeable cross-reference
interchangeable
21663-HKInterchangeable
interchangeable cross-reference
interchangeable
99121663Interchangeable
interchangeable cross-reference
interchangeable
45000-287-01Interchangeable
interchangeable cross-reference
interchangeable
278318Interchangeable
interchangeable cross-reference
interchangeable
78318Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 5740575?
5740575 is a SCREW ASSY. VENT.
What parts can replace 5740575?
There are 9 known substitutes for 5740575: 21663, 21663-HK, 99121663 and 6 more. Substitute compatibility should be verified for your specific system.
Is 5740575 still available?
5740575 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