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PartsTable / COMPONENT / FF-S-86 TYPE VI
FF-S-86 TYPE VI ✓ 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: STEEL OVERALL, hole_type: DRILLED, head_style: FLAT CHAMFER, head_height: 0.492 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN, thread_class: 3A A, head_diameter: 0.735 INCHES MINIMUM AND 0.750 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 5305-00-865-1659, 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-86 TYPE VI
NSN: 5305-00-865-1659
FSC: 5305
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
materialSTEEL OVERALL
hole_typeDRILLED
head_styleFLAT CHAMFER
head_height0.492 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
thread_class3A A
head_diameter0.735 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
hole_diameter0.061 INCHES MINIMUM AND 0.067 INCHES MAXIMUM IN
hole_quantity3
thread_length1.880 INCHES MINIMUM IN
fastener_length2.920 INCHES MINIMUM AND 3.000 INCHES MAXIMUM IN
hardness_rating38.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL
thread_directionRIGHT-HAND
NSN5305-00-865-1659
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: FF-S-86 TYPE VI · 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
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
•
HEAD STYLE: FLAT CHAMFER
•
WIDTH ACROSS FLATS: 0.156 INCHES NOMINAL IN
•
THREAD LENGTH: 0.750 INCHES MAXIMUM IN
•
DEPARTURE FROM CITED DESIGNATOR: AS MODIFIED BY MATERIAL
•
NONDEFINITIVE SPEC/STD DATA: 6 TYPE
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-N-281 CL B FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
HEAD HEIGHT: 0.185 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
HEAD STYLEFLAT CHAMFER
WIDTH ACROSS FLATS0.156 INCHES NOMINAL IN
THREAD LENGTH0.750 INCHES MAXIMUM IN
DEPARTURE FROM CITED DESIGNATORAS MODIFIED BY MATERIAL
NONDEFINITIVE SPEC/STD DATA6 TYPE
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281 CL B FED SPEC SINGLE MATERIAL RESPONSE OVERALL
HEAD HEIGHT0.185 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN
THREAD QUANTITY PER INCH24
INTERNAL DRIVE STYLEHEXAGON
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
13860-46Interchangeable
interchangeable cross-reference
interchangeable
FFS86TYPE6Interchangeable
interchangeable cross-reference
interchangeable
12F1007-293Interchangeable
interchangeable cross-reference
interchangeable
12Z1007-293Interchangeable
interchangeable cross-reference
interchangeable
43-S-4374-1640Interchangeable
interchangeable cross-reference
interchangeable
12Z1196-14Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is FF-S-86 TYPE VI?
FF-S-86 TYPE VI is a SCREW,CAP,SOCKET HEAD.
What parts can replace FF-S-86 TYPE VI?
There are 20 known substitutes for FF-S-86 TYPE VI: 13860-46, FFS86TYPE6, 12F1007-293 and 17 more. Substitute compatibility should be verified for your specific system.
What is the NSN for FF-S-86 TYPE VI?
FF-S-86 TYPE VI is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-865-1659. 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