PartsTable
Technical Data Sheet
PartsTable / COMPONENT / S279
S279 ✓ 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 NUT,PLAIN,HEXAGON is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, shank_length: 2.000 INCHES NOMINAL IN, thread_class: 2A A, coil_quantity: 15-1/2, thread_length: 2.000 INCHES NOMINAL IN, overall_length: 4.940 INCHES NOMINAL 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 5305-00-017-9859, 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
S279
NSN: 5305-00-017-9859
FSC: 5305
CAGE: 63734 — KAITLIN CORP (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
shank_length2.000 INCHES NOMINAL IN
thread_class2A A
coil_quantity15-1/2
thread_length2.000 INCHES NOMINAL IN
overall_length4.940 INCHES NOMINAL IN
inside_diameter0.912 INCHES NOMINAL IN
style_designatorROUND, CLOSED W/SHOULDER
thread_directionRIGHT-HAND
eye_outside_width2.750 INCHES NOMINAL IN
shoulder_diameter1.380 INCHES NOMINAL IN
eye_stock_diameter0.620 INCHES NOMINAL IN
NSN5305-00-017-9859
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: S279 · 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
•
THREAD QUANTITY PER INCH: 14
•
HEAD STYLE: HEXAGON
•
HEAD HEIGHT: 0.281 INCHES NOMINAL IN
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
•
NONDEFINITIVE SPEC/STD DATA: 2 TYPE AND 10P STYLE AND 5 GRADE
•
MINIMUM YIELD STRENGTH: 85000 POUNDS PER SQUARE INCH LBS
•
HARDNESS RATING: 23.0 ROCKWELL C MINIMUM AND 30.0 ROCKWELL C MAXIMUM OVERALL
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
THREAD QUANTITY PER INCH14
HEAD STYLEHEXAGON
HEAD HEIGHT0.281 INCHES NOMINAL IN
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
NONDEFINITIVE SPEC/STD DATA2 TYPE AND 10P STYLE AND 5 GRADE
MINIMUM YIELD STRENGTH85000 POUNDS PER SQUARE INCH LBS
HARDNESS RATING23.0 ROCKWELL C MINIMUM AND 30.0 ROCKWELL C MAXIMUM OVERALL
MATERIALSTEEL OVERALL
THREAD LENGTH1.125 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
X03362Interchangeable
interchangeable cross-reference
interchangeable
179859Interchangeable
interchangeable cross-reference
interchangeable
18557Interchangeable
interchangeable cross-reference
interchangeable
1863HX1Interchangeable
interchangeable cross-reference
interchangeable
71145-86Interchangeable
interchangeable cross-reference
interchangeable
B1821BH044C113NInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy S279?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is S279?
S279 is a NUT,PLAIN,HEXAGON.
What parts can replace S279?
There are 13 known substitutes for S279: X03362, 179859, 18557 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for S279?
S279 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-017-9859. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — S279

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026