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PartsTable / COMPONENT / FFS85TYPE1STYLE10P
FFS85TYPE1STYLE10P ✓ 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 head_style: HEXAGON, head_height: 0.150 INCHES MINIMUM AND 0.163 INCHES MAXIMUM IN, thread_class: 2A A, thread_length: 0.438 INCHES MAXIMUM IN, surface_finish: 63.0 MICROINCHES THREADS, fastener_length: 0.407 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-005-8227, 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
FFS85TYPE1STYLE10P
NSN: 5305-00-005-8227
FSC: 5305
CAGE: 81348 — FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC (USA)
SPECIFICATIONS
head_styleHEXAGON
head_height0.150 INCHES MINIMUM AND 0.163 INCHES MAXIMUM IN
thread_class2A A
thread_length0.438 INCHES MAXIMUM IN
surface_finish63.0 MICROINCHES THREADS
fastener_length0.407 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
hardness_rating80.0 ROCKWELL B MINIMUM OVERALL
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE OVERALL
width_between_flats0.428 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
minimum_yield_strength30000 POUNDS PER SQUARE INCH LBS
nominal_thread_diameter0.250 INCHES IN
NSN5305-00-005-8227
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: FFS85TYPE1STYLE10P · 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
•
MATERIAL: STEEL COMP 301 OR STEEL COMP 302 OR STEEL COMP 302B OR STEEL COMP 303 OR STEEL COMP 303SE OR STEEL COMP 304 OR STEEL COMP 304L OR STEEL COMP 305 OR STEEL COMP 308 OR STEEL COMP 309 OR STEEL COMP 309S OR STEEL COMP 310 OR STEEL COMP 310S OR STEEL COMP 314 OR STEEL COMP 316 OR STEEL COMP 316L OR STEEL COMP 317 OR STEEL COMP 321 OR STEEL COMP 347 OR STEEL COMP 348 OR STEEL COMP 384 OR STEEL COMP 385 OVERALL
•
SURFACE FINISH: 63.0 MICROINCHES THREADS
•
HARDNESS RATING: 80.0 ROCKWELL B MINIMUM OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD ALL MATERIAL RESPONSES OVERALL
•
MINIMUM YIELD STRENGTH: 30000 POUNDS PER SQUARE INCH LBS
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
NONDEFINITIVE SPEC/STD DATA: 2 TYPE AND 10P STYLE
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL COMP 301 OR STEEL COMP 302 OR STEEL COMP 302B OR STEEL COMP 303 OR STEEL COMP 303SE OR STEEL COMP 304 OR STEEL COMP 304L OR STEEL COMP 305 OR STEEL COMP 308 OR STEEL COMP 309 OR STEEL COMP 309S OR STEEL COMP 310 OR STEEL COMP 310S OR STEEL COMP 314 OR STEEL COMP 316 OR STEEL COMP 316L OR STEEL COMP 317 OR STEEL COMP 321 OR STEEL COMP 347 OR STEEL COMP 348 OR STEEL COMP 384 OR STEEL COMP 385 OVERALL
SURFACE FINISH63.0 MICROINCHES THREADS
HARDNESS RATING80.0 ROCKWELL B MINIMUM OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD ALL MATERIAL RESPONSES OVERALL
MINIMUM YIELD STRENGTH30000 POUNDS PER SQUARE INCH LBS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NONDEFINITIVE SPEC/STD DATA2 TYPE AND 10P STYLE
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
SURFACE TREATMENTPASSIVATE OVERALL
MINIMUM TENSILE STRENGTH80000 POUNDS PER SQUARE INCH LBS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
FF-S-85Interchangeable
Same NIIN cross-reference
interchangeable
NASM35307Interchangeable
Same NIIN cross-reference
interchangeable
MS35307-2Interchangeable
Same NIIN cross-reference
interchangeable
MS35307-302Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is FFS85TYPE1STYLE10P?
FFS85TYPE1STYLE10P is a SCREW,CAP,HEXAGON HEAD.
What parts can replace FFS85TYPE1STYLE10P?
There are 4 known substitutes for FFS85TYPE1STYLE10P: FF-S-85, NASM35307, MS35307-2 and 1 more. Substitute compatibility should be verified for your specific system.
Is FFS85TYPE1STYLE10P still available?
FFS85TYPE1STYLE10P 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