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PartsTable / COMPONENT / FF-B-588 TY1ST1CL2
FF-B-588 TY1ST1CL2 ✓ 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 BOLT,TOGGLE is a the manufacturer industrial component. Key specifications include length: 3.880 INCHES MINIMUM AND 4.120 INCHES MAXIMUM IN, material: STEEL OVERALL, thread_class: 2A A, style_designator: SPRING-WING, SHEET METAL, MACHINE SCREW, surface_treatment: CADMIUM OR CHROMIUM OR ZINC OVERALL, wing_spread_width: 1.500 INCHES MINIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-209-3747, 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
FF-B-588 TY1ST1CL2
NSN: 5306-00-209-3747
FSC: 5306
CAGE: 80244 — GENERAL SERVICES ADMINISTRATION FEDERAL SUPPLY SERVICE (USA)
SPECIFICATIONS
length3.880 INCHES MINIMUM AND 4.120 INCHES MAXIMUM IN
materialSTEEL OVERALL
thread_class2A A
style_designatorSPRING-WING, SHEET METAL, MACHINE SCREW
surface_treatmentCADMIUM OR CHROMIUM OR ZINC OVERALL
wing_spread_width1.500 INCHES MINIMUM IN
nominal_thread_diameter0.190 INCHES IN
thread_quantity_per_inch24
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
departure_from_cited_designatorAS MODIFIED BY FINISH
NSN5306-00-209-3747
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: FF-B-588 TY1ST1CL2 · 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
•
DEPARTURE FROM CITED DESIGNATOR: AS MODIFIED BY FINISH
•
LENGTH: 3.880 INCHES MINIMUM AND 4.120 INCHES MAXIMUM IN
•
MATERIAL: STEEL OVERALL
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
•
SURFACE TREATMENT: CADMIUM OR CHROMIUM OR ZINC OVERALL
•
STYLE DESIGNATOR: SPRING-WING, SHEET METAL, MACHINE SCREW
•
WING SPREAD WIDTH: 1.500 INCHES MINIMUM IN
•
THREAD CLASS: 2A A
TECHNICAL CHARACTERISTICS (FLIS)
DEPARTURE FROM CITED DESIGNATORAS MODIFIED BY FINISH
LENGTH3.880 INCHES MINIMUM AND 4.120 INCHES MAXIMUM IN
MATERIALSTEEL OVERALL
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
SURFACE TREATMENTCADMIUM OR CHROMIUM OR ZINC OVERALL
STYLE DESIGNATORSPRING-WING, SHEET METAL, MACHINE SCREW
WING SPREAD WIDTH1.500 INCHES MINIMUM IN
THREAD CLASS2A A
THREAD QUANTITY PER INCH24
NOMINAL THREAD DIAMETER0.190 INCHES IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 2
FFB588Upgraded Successor
successor cross-reference
successor
FF-S-92Upgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is FF-B-588 TY1ST1CL2?
FF-B-588 TY1ST1CL2 is a BOLT,TOGGLE.
What parts can replace FF-B-588 TY1ST1CL2?
There are 2 known substitutes for FF-B-588 TY1ST1CL2: FFB588, FF-S-92. Substitute compatibility should be verified for your specific system.
What is the NSN for FF-B-588 TY1ST1CL2?
FF-B-588 TY1ST1CL2 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-209-3747. 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