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12509496 — SCREW,SHOULDER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

12509496: SCREW,SHOULDER.

The SCREW,SHOULDER is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: FLAT FILLISTER, head_height: 0.500 INCHES NOMINAL IN, head_diameter: 1.000 INCHES NOMINAL IN, thread_length: 0.870 INCHES NOMINAL IN, shoulder_shape: ROUND OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-579-8142, 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
12509496
NSN: 5305-01-579-8142
FSC: 5305 — Screws
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleFLAT FILLISTER
head_height0.500 INCHES NOMINAL IN
head_diameter1.000 INCHES NOMINAL IN
thread_length0.870 INCHES NOMINAL IN
shoulder_shapeROUND OVERALL
fastener_length4.370 INCHES NOMINAL IN
shoulder_length3.500 INCHES NOMINAL OVERALL IN
thread_directionRIGHT-HAND
shoulder_diameter0.750 INCHES NOMINAL OVERALL IN
width_across_flats0.380 INCHES NOMINAL IN
internal_drive_styleHEXAGON
NSN5305-01-579-8142
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 12509496 · 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
•
WIDTH ACROSS FLATS: 0.380 INCHES NOMINAL IN
•
HEAD HEIGHT: 0.500 INCHES NOMINAL IN
•
FASTENER LENGTH: 4.370 INCHES NOMINAL IN
•
SHOULDER LENGTH: 3.500 INCHES NOMINAL OVERALL IN
•
SHOULDER DIAMETER: 0.750 INCHES NOMINAL OVERALL IN
•
THREAD LENGTH: 0.870 INCHES NOMINAL IN
•
SHOULDER SHAPE: ROUND OVERALL
•
NOMINAL THREAD DIAMETER: 0.625 INCHES IN
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.380 INCHES NOMINAL IN
HEAD HEIGHT0.500 INCHES NOMINAL IN
FASTENER LENGTH4.370 INCHES NOMINAL IN
SHOULDER LENGTH3.500 INCHES NOMINAL OVERALL IN
SHOULDER DIAMETER0.750 INCHES NOMINAL OVERALL IN
THREAD LENGTH0.870 INCHES NOMINAL IN
SHOULDER SHAPEROUND OVERALL
NOMINAL THREAD DIAMETER0.625 INCHES IN
HEAD STYLEFLAT FILLISTER
THREAD DIRECTIONRIGHT-HAND
OTHER ITEMS IN FSC 5305 — Screws
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5305-00-001-5016 5305-00-001-9160 5305-00-001-9629 5305-00-001-9742 5305-00-001-9768 5305-00-003-4306 5305-00-003-6694 5305-00-003-6753
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 12509496?
12509496 is a SCREW,SHOULDER.
What is the NSN for 12509496?
12509496 is cataloged in the U.S. Government catalog under NSN 5305-01-579-8142. 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.