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Technical Data Sheet
PartsTable / COMPONENT / 0441C0121-59
0441C0121-59 ✓ 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,EXTERNALLY RELIEVED BODY is a the manufacturer industrial component. Key specifications include specification/standard_data: 54497-0441C0121-59 MANUFACTURERS STANDARD. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-01-345-7880, 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
0441C0121-59
NSN: 5305-01-345-7880
FSC: 5305
CAGE: 03538 — LOCKHEED MARTIN CORPORATION DIV RMS (USA)
SPECIFICATIONS
specification/standard_data54497-0441C0121-59 MANUFACTURERS STANDARD
NSN5305-01-345-7880
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 0441C0121-59 · 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
•
SPECIFICATION/STANDARD DATA: 54497-0441C0121-59 MANUFACTURERS STANDARD
TECHNICAL CHARACTERISTICS (FLIS)
SPECIFICATION/STANDARD DATA54497-0441C0121-59 MANUFACTURERS STANDARD
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
4159Interchangeable
interchangeable cross-reference
interchangeable
JH4159Interchangeable
interchangeable cross-reference
interchangeable
15-50SInterchangeable
interchangeable cross-reference
interchangeable
TWCL50Interchangeable
interchangeable cross-reference
interchangeable
260STInterchangeable
interchangeable cross-reference
interchangeable
SS635Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 0441C0121-59?
0441C0121-59 is a SCREW,EXTERNALLY RELIEVED BODY.
What parts can replace 0441C0121-59?
There are 16 known substitutes for 0441C0121-59: 4159, JH4159, 15-50S and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 0441C0121-59?
0441C0121-59 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-01-345-7880. 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