PartsTable
Technical Data Sheet
Download PDF

NB51181612 — SCREW,CAP,HEXAGON HEAD

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

NB51181612: SCREW,CAP,HEXAGON HEAD.

The SCREW,CAP,HEXAGON HEAD is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY 400 OVERALL, fastener_length: 1.500 INCHES NOMINAL IN, nominal_thread_diameter: 0.438 INCHES IN, thread_quantity_per_inch: 14, thread_series_designator: UNIFIED NATIONAL COARSE (UNC). This part is cataloged in the U.S.

Government catalog under NSN 5305-01-423-0692, 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
NB51181612
NSN: 5305-01-423-0692
FSC: 5305 — Screws
CAGE: 35795 — LESLIE CONTROLS, INC. DBA LESLIE CONTROLS INC (USA)
SPECIFICATIONS
materialNICKEL ALLOY 400 OVERALL
fastener_length1.500 INCHES NOMINAL IN
nominal_thread_diameter0.438 INCHES IN
thread_quantity_per_inch14
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
NSN5305-01-423-0692
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: NB51181612 · 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
•
FASTENER LENGTH: 1.500 INCHES NOMINAL IN
•
NOMINAL THREAD DIAMETER: 0.438 INCHES IN
•
THREAD QUANTITY PER INCH: 14
•
MATERIAL: NICKEL ALLOY 400 OVERALL
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
TECHNICAL CHARACTERISTICS
FASTENER LENGTH1.500 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER0.438 INCHES IN
THREAD QUANTITY PER INCH14
MATERIALNICKEL ALLOY 400 OVERALL
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
OTHER ITEMS IN FSC 5305 — Screws
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5305-00-000-0094 5305-00-000-1397 5305-00-000-2625 5305-00-000-3669 5305-00-000-3830 5305-00-000-3831
SUBSTITUTES & CROSS-REFERENCES 3
N-734 PIECE 22Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
N-670 PIECE 19Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
511-816-12Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
Ready to buy NB51181612?
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 NB51181612?
NB51181612 is a SCREW,CAP,HEXAGON HEAD.
What parts can replace NB51181612?
There are 3 known substitutes for NB51181612: N-734 PIECE 22, N-670 PIECE 19, 511-816-12. Substitute compatibility should be verified for your specific system.
What is the NSN for NB51181612?
NB51181612 is cataloged in the U.S. Government catalog under NSN 5305-01-423-0692. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — NB51181612

✓ 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.