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PartsTable / COMPONENT / SFC164SUM-8
SFC164SUM-8 ✓ 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 STUD,LOCKED IN is a the manufacturer industrial component. Key specifications include material: STEEL COMP 8740, thread_class: 3A NUT THREAD A, thread_length: 0.246 INCHES NOMINAL STUD THREAD IN, overall_length: 0.950 INCHES NOMINAL IN, locking_feature: KNURLED SHANK, style_designator: LOCKED 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 5307-01-127-2724, 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
SFC164SUM-8
NSN: 5307-01-127-2724
FSC: 5307
CAGE: 01634 — ALUMINUM CO OF AMERICA (USA)
SPECIFICATIONS
materialSTEEL COMP 8740
thread_class3A NUT THREAD A
thread_length0.246 INCHES NOMINAL STUD THREAD IN
overall_length0.950 INCHES NOMINAL IN
locking_featureKNURLED SHANK
style_designatorLOCKED IN
thread_directionRIGHT-HAND STUD THREAD
nominal_thread_size0.164 INCHES STUD THREAD IN
end_item_identificationF107-WR-100 ENGINE
thread_quantity_per_inch36 NUT THREAD
thread_series_designatorUNIFIED NATIONAL JOINT FINE (UNJF) NUT THREAD
distance_from_serrated_portion_to_nut_end0.485 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN
NSN5307-01-127-2724
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: SFC164SUM-8 · 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
•
NOMINAL THREAD SIZE: 0.164 INCHES NUT THREAD IN
•
LOCKING FEATURE: KNURLED SHANK
•
THREAD QUANTITY PER INCH: 36 NUT THREAD
•
THREAD CLASS: 3A NUT THREAD A
•
DISTANCE FROM SERRATED PORTION TO STUD END: 0.410 INCHES MINIMUM AND 0.450 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: LOCKED IN
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL THREAD SIZE0.164 INCHES NUT THREAD IN
LOCKING FEATUREKNURLED SHANK
THREAD QUANTITY PER INCH36 NUT THREAD
THREAD CLASS3A NUT THREAD A
END ITEM IDENTIFICATIONF107-WR-100 ENGINE
DISTANCE FROM SERRATED PORTION TO STUD END0.410 INCHES MINIMUM AND 0.450 INCHES MAXIMUM IN
OVERALL LENGTH0.950 INCHES NOMINAL IN
STYLE DESIGNATORLOCKED IN
NOMINAL THREAD SIZE0.164 INCHES STUD THREAD IN
DISTANCE FROM SERRATED PORTION TO NUT END0.485 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
8823-1Interchangeable
interchangeable cross-reference
interchangeable
1266014Interchangeable
interchangeable cross-reference
interchangeable
7373638Interchangeable
interchangeable cross-reference
interchangeable
8800 PC 55Interchangeable
interchangeable cross-reference
interchangeable
8823Interchangeable
interchangeable cross-reference
interchangeable
8823PC8Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SFC164SUM-8?
SFC164SUM-8 is a STUD,LOCKED IN.
What parts can replace SFC164SUM-8?
There are 8 known substitutes for SFC164SUM-8: 8823-1, 1266014, 7373638 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for SFC164SUM-8?
SFC164SUM-8 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5307-01-127-2724. 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