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PartsTable / COMPONENT / FF-S-85 TY 2 ST 10P
FF-S-85 TY 2 ST 10P ✓ 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,HEXAGON HEAD is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: HEXAGON, head_height: 0.455 INCHES MINIMUM AND 0.483 INCHES MAXIMUM IN, thread_class: 2A A, thread_length: 2.000 INCHES MINIMUM AND 2.188 INCHES MAXIMUM IN, surface_finish: 63.0 MICROINCHES THREADS. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-269-3206, 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-85 TY 2 ST 10P
NSN: 5305-00-269-3206
FSC: 5305
CAGE: 80244 — GENERAL SERVICES ADMINISTRATION FEDERAL SUPPLY SERVICE (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleHEXAGON
head_height0.455 INCHES MINIMUM AND 0.483 INCHES MAXIMUM IN
thread_class2A A
thread_length2.000 INCHES MINIMUM AND 2.188 INCHES MAXIMUM IN
surface_finish63.0 MICROINCHES THREADS
fastener_length6.812 INCHES MINIMUM AND 7.000 INCHES MAXIMUM IN
hardness_rating80.0 ROCKWELL B MINIMUM AND 100.0 ROCKWELL B MAXIMUM OVERALL
thread_directionRIGHT-HAND
surface_treatmentCADMIUM OR ZINC OVERALL
width_between_flats1.000 INCHES MINIMUM AND 1.125 INCHES MAXIMUM IN
minimum_yield_strength85000 POUNDS PER SQUARE INCH LBS
NSN5305-00-269-3206
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: FF-S-85 TY 2 ST 10P · 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
•
MINIMUM YIELD STRENGTH: 85000 POUNDS PER SQUARE INCH LBS
•
MATERIAL: STEEL OVERALL
•
HARDNESS RATING: 23.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE GR 5 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: SAE/AMS QQ-P-416 TY2CL3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
SURFACE TREATMENT: CADMIUM AND CHROMATE OVERALL
•
THREAD LENGTH: 0.313 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
MINIMUM YIELD STRENGTH85000 POUNDS PER SQUARE INCH LBS
MATERIALSTEEL OVERALL
HARDNESS RATING23.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONSAE GR 5 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONSAE/AMS QQ-P-416 TY2CL3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
THREAD LENGTH0.313 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.375 INCHES IN
MINIMUM TENSILE STRENGTH120000 POUNDS PER SQUARE INCH LBS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 29
D225K25KInterchangeable
interchangeable cross-reference
interchangeable
1368Interchangeable
interchangeable cross-reference
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3-4TA51FS30Interchangeable
interchangeable cross-reference
interchangeable
F10J30RInterchangeable
interchangeable cross-reference
interchangeable
F109Interchangeable
interchangeable cross-reference
interchangeable
2004Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is FF-S-85 TY 2 ST 10P?
FF-S-85 TY 2 ST 10P is a SCREW,CAP,HEXAGON HEAD.
What parts can replace FF-S-85 TY 2 ST 10P?
There are 29 known substitutes for FF-S-85 TY 2 ST 10P: D225K25K, 1368, 3-4TA51FS30 and 26 more. Substitute compatibility should be verified for your specific system.
Is FF-S-85 TY 2 ST 10P still available?
FF-S-85 TY 2 ST 10P is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026