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12543051 — SCREW,CAP,HEXAGON HEAD

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

12543051: SCREW,CAP,HEXAGON HEAD.

The SCREW,CAP,HEXAGON HEAD is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: CHAMFER FLANGE, head_height: 0.750 INCHES MAXIMUM IN, thread_length: 2.00 INCHES NOMINAL IN, fastener_length: 8.50 INCHES MAXIMUM IN, special_features: FINISH IN ACCORDANCE WITH 19207-12424710 METHOD 4. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-593-1189, 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
12543051
NSN: 5305-01-593-1189
NIINs: 015931189, 016443222, 016443226, 016443228, 016443315, 016443333, 016443338, 016443341, 016444453, 016444968, 016445032, 016445036, 016445039, 016445042, 016445044, 016445721, 016445723, 016446035, 016446055, 016446441, 017106462, 017170852, 017251225
FSC: 5305 — Screws
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleCHAMFER FLANGE
head_height0.750 INCHES MAXIMUM IN
thread_length2.00 INCHES NOMINAL IN
fastener_length8.50 INCHES MAXIMUM IN
special_featuresFINISH IN ACCORDANCE WITH 19207-12424710 METHOD 4
thread_directionRIGHT-HAND
surface_treatmentPHOSPHATE ZINC AND OIL OVERALL
width_between_flats1.125 INCHES MAXIMUM IN
end_item_identification2355-01-654-5245
nominal_thread_diameter0.750 INCHES IN
extended_washer_diameter1.590 INCHES MAXIMUM IN
NSN5305-01-593-1189
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 12543051 · 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
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 2
3945953Reference document
Same NSN cross-reference
Reference document — Secondary reference
12543051-038Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 12543051?
12543051 is a SCREW,CAP,HEXAGON HEAD.
What parts can replace 12543051?
There are 2 known substitutes for 12543051: 3945953, 12543051-038. Substitute compatibility should be verified for your specific system.
What is the NSN for 12543051?
12543051 is cataloged in the U.S. Government catalog under NSN 5305-01-593-1189. 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.