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8T0657 — SCREW,CAP,HEXAGON HEAD

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

8T0657: SCREW,CAP,HEXAGON HEAD.

The SCREW,CAP,HEXAGON HEAD is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: HEXAGON, head_height: 13.0 MILLIMETERS NOMINAL MM, thread_length: 52.0 MILLIMETERS NOMINAL MM, fastener_length: 160.0 MILLIMETERS NOMINAL MM, special_features: NOMINAL GRIP LENGTH IS 108.0 MILLIMETERS MM. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-360-9088, 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
8T0657
NSN: 5305-01-360-9088
FSC: 5305 — Screws
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleHEXAGON
head_height13.0 MILLIMETERS NOMINAL MM
thread_length52.0 MILLIMETERS NOMINAL MM
fastener_length160.0 MILLIMETERS NOMINAL MM
special_featuresNOMINAL GRIP LENGTH IS 108.0 MILLIMETERS MM
thread_directionRIGHT-HAND
surface_treatmentOIL AND PHOSPHATE OVERALL
width_between_flats30.0 MILLIMETERS NOMINAL MM
end_item_identificationMRAP - COMMON NSN - USED ON MRAP NO PERMANENT WSDC IDENTIFIED AND 2 OTHER WEAPON SYSTEMS
nominal_thread_diameter20.0 MILLIMETERS MM
thread_series_designatorM
NSN5305-01-360-9088
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 8T0657 · 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: 13.0 MILLIMETERS NOMINAL MM
•
FASTENER LENGTH: 160.0 MILLIMETERS NOMINAL MM
•
THREAD PITCH IN MILLIMETERS: 2.5
•
THREAD LENGTH: 52.0 MILLIMETERS NOMINAL MM
•
NOMINAL THREAD DIAMETER: 20.0 MILLIMETERS MM
•
HEAD STYLE: HEXAGON
•
THREAD DIRECTION: RIGHT-HAND
•
WIDTH BETWEEN FLATS: 30.0 MILLIMETERS NOMINAL MM
TECHNICAL CHARACTERISTICS
HEAD HEIGHT13.0 MILLIMETERS NOMINAL MM
FASTENER LENGTH160.0 MILLIMETERS NOMINAL MM
THREAD PITCH IN MILLIMETERS2.5
THREAD LENGTH52.0 MILLIMETERS NOMINAL MM
NOMINAL THREAD DIAMETER20.0 MILLIMETERS MM
HEAD STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
WIDTH BETWEEN FLATS30.0 MILLIMETERS NOMINAL MM
SPECIAL FEATURESNOMINAL GRIP LENGTH IS 108.0 MILLIMETERS MM
SURFACE TREATMENTOIL AND PHOSPHATE OVERALL
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 1
5305013609088Reference document
Same NSN cross-reference
Reference document — Informative reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 8T0657?
8T0657 is a SCREW,CAP,HEXAGON HEAD.
What parts can replace 8T0657?
There is 1 known substitute for 8T0657: 5305013609088. Substitute compatibility should be verified for your specific system.
What is the NSN for 8T0657?
8T0657 is cataloged in the U.S. Government catalog under NSN 5305-01-360-9088. This indicates validated use in U.S. government and defense supply chains.
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