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Technical Data Sheet
PartsTable / COMPONENT / A73440
A73440 ✓ 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 RING,RETAINING is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-01-481-6028, 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
A73440
NSN: 5325-01-481-6028
FSC: 5325
CAGE: 35795 — LESLIE CONTROLS, INC. DBA LESLIE CONTROLS INC (USA)
SPECIFICATIONS
Part NumberA73440
NSN5325-01-481-6028
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: A73440 · 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 12
619D136 PIECE 7Interchangeable
interchangeable cross-reference
interchangeable
626-001-9285Interchangeable
interchangeable cross-reference
interchangeable
RR412Interchangeable
interchangeable cross-reference
interchangeable
A72953Interchangeable
interchangeable cross-reference
interchangeable
Y109101004N ITEM 8Interchangeable
interchangeable cross-reference
interchangeable
Y109101004N ITEM 52Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A73440?
A73440 is a RING,RETAINING.
What parts can replace A73440?
There are 12 known substitutes for A73440: 619D136 PIECE 7, 626-001-9285, RR412 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A73440?
A73440 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-01-481-6028. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026