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Technical Data Sheet
PartsTable / COMPONENT / FF-S-86D
FF-S-86D ✓ 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,CAP,SOCKET HEAD is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY 400 OR NICKEL ALLOY R-405 OVERALL, head_style: FLAT CHAMFER, head_height: 0.159 INCHES MINIMUM AND 0.164 INCHES MAXIMUM IN, thread_class: 3A A, head_diameter: 0.262 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN, thread_length: 0.220 INCHES MINIMUM AND 0.312 INCHES MAXIMUM 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 5305-00-952-1432, 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-S-86D
NSN: 5305-00-952-1432
FSC: 5305
CAGE: 81348 — FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC (USA)
SPECIFICATIONS
materialNICKEL ALLOY 400 OR NICKEL ALLOY R-405 OVERALL
head_styleFLAT CHAMFER
head_height0.159 INCHES MINIMUM AND 0.164 INCHES MAXIMUM IN
thread_class3A A
head_diameter0.262 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
thread_length0.220 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN
fastener_length0.282 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE OVERALL
width_across_flats0.141 INCHES NOMINAL IN
internal_drive_styleHEXAGON
end_item_identificationTFN; 98N; 23N; WKN; TQN
NSN5305-00-952-1432
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: FF-S-86D · 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
•
HEAD DIAMETER: 0.875 INCHES NOMINAL IN
•
THREAD QUANTITY PER INCH: 11
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
•
INTERNAL DRIVE STYLE: HEXAGON
•
HEAD HEIGHT: 0.625 INCHES NOMINAL IN
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
•
NOMINAL THREAD DIAMETER: 0.625 INCHES IN
•
FASTENER LENGTH: 2.500 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
HEAD DIAMETER0.875 INCHES NOMINAL IN
THREAD QUANTITY PER INCH11
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
INTERNAL DRIVE STYLEHEXAGON
HEAD HEIGHT0.625 INCHES NOMINAL IN
MATERIALSTEEL CORROSION RESISTING OVERALL
NOMINAL THREAD DIAMETER0.625 INCHES IN
FASTENER LENGTH2.500 INCHES NOMINAL IN
SURFACE TREATMENTPASSIVATE OVERALL
THREAD LENGTH1.750 INCHES MINIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
100A905072Interchangeable
interchangeable cross-reference
interchangeable
90507Interchangeable
interchangeable cross-reference
interchangeable
FF-S-86DInterchangeable
interchangeable cross-reference
interchangeable
308-24280Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is FF-S-86D?
FF-S-86D is a SCREW,CAP,SOCKET HEAD.
What parts can replace FF-S-86D?
There are 4 known substitutes for FF-S-86D: 100A905072, 90507, FF-S-86D and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for FF-S-86D?
FF-S-86D is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-952-1432. 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