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Technical Data Sheet
PartsTable / COMPONENT / FF-S-82
FF-S-82 ✓ 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,MACHINE is a the manufacturer industrial component. Key specifications include head_style: FILLISTER, head_height: 0.045 INCHES MINIMUM AND 0.055 INCHES MAXIMUM IN, thread_class: 3A A, head_diameter: 0.124 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN, thread_length: 0.214 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN, screw_material: STEEL COMP 316. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-297-3983, 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-82
NSN: 5305-00-297-3983
FSC: 5305
CAGE: 81348 — FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC (USA)
SPECIFICATIONS
head_styleFILLISTER
head_height0.045 INCHES MINIMUM AND 0.055 INCHES MAXIMUM IN
thread_class3A A
head_diameter0.124 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN
thread_length0.214 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
screw_materialSTEEL COMP 316
fastener_length0.250 INCHES NOMINAL IN
thread_directionRIGHT-HAND
countersink_angle80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM
internal_drive_styleSLOT
nominal_thread_diameter0.086 INCHES IN
screw_surface_treatmentNICKEL
NSN5305-00-297-3983
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: FF-S-82 · 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
•
SCREW MATERIAL: STEEL
•
INTERNAL DRIVE STYLE: SLOT
•
THREAD SERIES DESIGNATOR: UNF
•
THREAD QUANTITY PER INCH: 40
•
FASTENER LENGTH: 0.188 INCHES NOMINAL IN
•
HEAD DIAMETER: 0.257 INCHES MINIMUM AND 0.277 INCHES MAXIMUM IN
•
SCREW SURFACE TREATMENT: NICKEL
•
THREAD LENGTH: 0.188 INCHES MINIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
SCREW MATERIALSTEEL
INTERNAL DRIVE STYLESLOT
THREAD SERIES DESIGNATORUNF
THREAD QUANTITY PER INCH40
FASTENER LENGTH0.188 INCHES NOMINAL IN
HEAD DIAMETER0.257 INCHES MINIMUM AND 0.277 INCHES MAXIMUM IN
SCREW SURFACE TREATMENTNICKEL
THREAD LENGTH0.188 INCHES MINIMUM IN
COUNTERSINK ANGLE80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM
THREAD DIRECTIONRIGHT-HAND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 2
177004-8Interchangeable
interchangeable cross-reference
interchangeable
FF-S-82Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is FF-S-82?
FF-S-82 is a SCREW,MACHINE.
What parts can replace FF-S-82?
There are 2 known substitutes for FF-S-82: 177004-8, FF-S-82. Substitute compatibility should be verified for your specific system.
What is the NSN for FF-S-82?
FF-S-82 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-297-3983. 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