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SFC172-3BB — SCREW,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

SFC172-3BB: SCREW,MACHINE.

The SCREW,MACHINE is a the manufacturer industrial component. Key specifications include head_style: FLAT CHAMFER, thread_length: 0.159 INCHES MINIMUM IN, screw_material: COPPER ALLOY, fastener_length: 0.187 INCHES NOMINAL IN, thread_direction: RIGHT-HAND, internal_drive_style: SLOT. This part is cataloged in the U.S.

Government catalog under NSN 5305-00-528-7892, 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
SFC172-3BB
NSN: 5305-00-528-7892
FSC: 5305 — Screws
CAGE: 26136 — KEARFLEX ENGINEERING COMPANY (USA)
SPECIFICATIONS
head_styleFLAT CHAMFER
thread_length0.159 INCHES MINIMUM IN
screw_materialCOPPER ALLOY
fastener_length0.187 INCHES NOMINAL IN
thread_directionRIGHT-HAND
internal_drive_styleSLOT
nominal_thread_diameter0.073 INCHES IN
screw_surface_treatmentOXIDE
thread_quantity_per_inch72
thread_series_designatorUNF
NSN5305-00-528-7892
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: SFC172-3BB · 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 SURFACE TREATMENT: OXIDE
•
FASTENER LENGTH: 0.187 INCHES NOMINAL IN
•
THREAD LENGTH: 0.159 INCHES MINIMUM IN
•
NOMINAL THREAD DIAMETER: 0.073 INCHES IN
•
HEAD STYLE: FLAT CHAMFER
•
THREAD DIRECTION: RIGHT-HAND
•
SCREW MATERIAL: COPPER ALLOY
•
INTERNAL DRIVE STYLE: SLOT
TECHNICAL CHARACTERISTICS
SCREW SURFACE TREATMENTOXIDE
FASTENER LENGTH0.187 INCHES NOMINAL IN
THREAD LENGTH0.159 INCHES MINIMUM IN
NOMINAL THREAD DIAMETER0.073 INCHES IN
HEAD STYLEFLAT CHAMFER
THREAD DIRECTIONRIGHT-HAND
SCREW MATERIALCOPPER ALLOY
INTERNAL DRIVE STYLESLOT
THREAD QUANTITY PER INCH72
THREAD SERIES DESIGNATORUNF
SUBSTITUTES & CROSS-REFERENCES 1
10125360Reference document
Same NSN cross-reference
Reference document — Informative reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is SFC172-3BB?
SFC172-3BB is a SCREW,MACHINE.
What parts can replace SFC172-3BB?
There is 1 known substitute for SFC172-3BB: 10125360. Substitute compatibility should be verified for your specific system.
What is the NSN for SFC172-3BB?
SFC172-3BB is cataloged in the U.S. Government catalog under NSN 5305-00-528-7892. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.