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Technical Data Sheet
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819915 — BOLT,RIBBED NECK

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

819915: BOLT,RIBBED NECK.

The BOLT,RIBBED NECK is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, special_features: HEX; ALL THREADS; 0.375 INCH DIAMETER IN, nominal_thread_diameter: 1.250 INCHES IN, thread_quantity_per_inch: 16, thread_series_designator: UNIFIED NATIONAL COARSE (UNC). This part is cataloged in the U.S.

Government catalog under NSN 5306-01-508-7549, 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
819915
NSN: 5306-01-508-7549
FSC: 5306 — Bolts
CAGE: 66943 — DATRON WORLD COMMUNICATIONS, INC. (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
special_featuresHEX; ALL THREADS; 0.375 INCH DIAMETER IN
nominal_thread_diameter1.250 INCHES IN
thread_quantity_per_inch16
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
NSN5306-01-508-7549
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 819915 · 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 DIAMETER: 1.250 INCHES IN
•
THREAD QUANTITY PER INCH: 16
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
TECHNICAL CHARACTERISTICS
NOMINAL THREAD DIAMETER1.250 INCHES IN
SPECIAL FEATURESHEX; ALL THREADS; 0.375 INCH DIAMETER IN
THREAD QUANTITY PER INCH16
MATERIALSTEEL CORROSION RESISTING OVERALL
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
OTHER ITEMS IN FSC 5306 — Bolts
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5306-00-001-1276 5306-00-001-1949 5306-00-001-1988 5306-00-001-1989 5306-00-001-1990 5306-00-001-1991 5306-00-001-1993 5306-00-001-2017
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 819915?
819915 is a BOLT,RIBBED NECK.
What is the NSN for 819915?
819915 is cataloged in the U.S. Government catalog under NSN 5306-01-508-7549. 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.