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12505457-004 — SCREW,CAP,HEXAGON HEAD

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

12505457-004: SCREW,CAP,HEXAGON HEAD.

The SCREW,CAP,HEXAGON HEAD is a the manufacturer industrial component. Key specifications include head_style: HEXAGON EXTENDED WASHER, head_height: 0.510 INCHES MAXIMUM IN, thread_length: 1.25 INCHES NOMINAL IN, fastener_length: 1.75 INCHES NOMINAL IN, special_features: STYLE: FLANGE CAP SCREW,GRADE 8;MATERIAL: STEEL GRADE 8 PER J429;FINISH: PER FM100;D60,TYPE 1,MAGNI 575, thread_direction: RIGHT-HAND. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-652-1337, 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
12505457-004
NSN: 5305-01-652-1337
FSC: 5305 — Screws
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
head_styleHEXAGON EXTENDED WASHER
head_height0.510 INCHES MAXIMUM IN
thread_length1.25 INCHES NOMINAL IN
fastener_length1.75 INCHES NOMINAL IN
special_featuresSTYLE: FLANGE CAP SCREW,GRADE 8;MATERIAL: STEEL GRADE 8 PER J429;FINISH: PER FM100;D60,TYPE 1,MAGNI 575
thread_directionRIGHT-HAND
width_between_flats0.736 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
end_item_identification4210-01-622-0440; TRUCK,FIRE FIGHTING; MRAP - M-ATV
nominal_thread_diameter0.500 INCHES IN
extended_washer_diameter1.07 INCHES NOMINAL IN
thread_quantity_per_inch13
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
NSN5305-01-652-1337
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 12505457-004 · 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
•
HEAD HEIGHT: 0.510 INCHES MAXIMUM IN
•
FASTENER LENGTH: 1.75 INCHES NOMINAL IN
•
EXTENDED WASHER DIAMETER: 1.07 INCHES NOMINAL IN
•
THREAD LENGTH: 1.25 INCHES NOMINAL IN
•
NOMINAL THREAD DIAMETER: 0.500 INCHES IN
•
HEAD STYLE: HEXAGON EXTENDED WASHER
•
THREAD DIRECTION: RIGHT-HAND
•
WIDTH BETWEEN FLATS: 0.736 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.510 INCHES MAXIMUM IN
FASTENER LENGTH1.75 INCHES NOMINAL IN
EXTENDED WASHER DIAMETER1.07 INCHES NOMINAL IN
THREAD LENGTH1.25 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER0.500 INCHES IN
HEAD STYLEHEXAGON EXTENDED WASHER
THREAD DIRECTIONRIGHT-HAND
WIDTH BETWEEN FLATS0.736 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
SPECIAL FEATURESSTYLE: FLANGE CAP SCREW,GRADE 8;MATERIAL: STEEL GRADE 8 PER J429;FINISH: PER FM100;D60,TYPE 1,MAGNI 575
PART NAME ASSIGNED BY CONTROLLING AGENCYSCREW,FLG,HEX,TAB
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 1
3970536Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
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 12505457-004?
12505457-004 is a SCREW,CAP,HEXAGON HEAD.
What parts can replace 12505457-004?
There is 1 known substitute for 12505457-004: 3970536. Substitute compatibility should be verified for your specific system.
What is the NSN for 12505457-004?
12505457-004 is cataloged in the U.S. Government catalog under NSN 5305-01-652-1337. 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.