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Technical Data Sheet
PartsTable / COMPONENT / 561LX
561LX ✓ 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 COMP 1213, fsc_application_data: TELETYPE AND FACSIMILE EQUIPMENT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-588-0937, 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
561LX
NSN: 5305-00-588-0937
FSC: 5305
CAGE: 27361 — BURKE PRODUCTS INC (USA)
SPECIFICATIONS
screw_materialSTEEL COMP 1213
fsc_application_dataTELETYPE AND FACSIMILE EQUIPMENT
NSN5305-00-588-0937
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 561LX · 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
•
SCREW MATERIAL: STEEL COMP 1213
•
FSC APPLICATION DATA: TELETYPE AND FACSIMILE EQUIPMENT
TECHNICAL CHARACTERISTICS (FLIS)
SCREW MATERIALSTEEL COMP 1213
FSC APPLICATION DATATELETYPE AND FACSIMILE EQUIPMENT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
56539Interchangeable
interchangeable cross-reference
interchangeable
11573Interchangeable
interchangeable cross-reference
interchangeable
154926R91Interchangeable
interchangeable cross-reference
interchangeable
28174XInterchangeable
interchangeable cross-reference
interchangeable
EXP6-184-1Interchangeable
interchangeable cross-reference
interchangeable
4052215P1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 561LX?
561LX is a SCREW,MACHINE.
What parts can replace 561LX?
There are 8 known substitutes for 561LX: 56539, 11573, 154926R91 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 561LX?
561LX is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-588-0937. 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