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SC5257 — SCREW,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

SC5257: SCREW,MACHINE.

The SCREW,MACHINE is a the manufacturer industrial component. Key specifications include head_style: HEXAGON EXTENDED WASHER, head_height: 0.151 INCHES NOMINAL IN, thread_class: 3A A, thread_length: 0.386 INCHES MINIMUM AND 0.426 INCHES MAXIMUM IN, screw_material: STEEL CORROSION RESISTING, fastener_length: 0.442 INCHES MINIMUM AND 0.474 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-00-095-3723, 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
SC5257
NSN: 5305-00-095-3723
FSC: 5305 — Screws
CAGE: 04998 — ADAMS AIRCRAFT INTERNATIONAL INC (USA)
SPECIFICATIONS
head_styleHEXAGON EXTENDED WASHER
head_height0.151 INCHES NOMINAL IN
thread_class3A A
hole_quantity1
thread_length0.386 INCHES MINIMUM AND 0.426 INCHES MAXIMUM IN
screw_materialSTEEL CORROSION RESISTING
fastener_length0.442 INCHES MINIMUM AND 0.474 INCHES MAXIMUM IN
hardness_rating25.0 ROCKWELL C MINIMUM AND 30.0 ROCKWELL C MAXIMUM
width_between_flats0.375 INCHES NOMINAL IN
nominal_thread_diameter0.216 INCHES IN
extended_washer_diameter0.500 INCHES NOMINAL IN
thread_quantity_per_inch24
NSN5305-00-095-3723
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: SC5257 · 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
•
EXTENDED WASHER THICKNESS: 0.042 INCHES NOMINAL IN
•
HEAD HEIGHT: 0.151 INCHES NOMINAL IN
•
FASTENER LENGTH: 0.442 INCHES MINIMUM AND 0.474 INCHES MAXIMUM IN
•
EXTENDED WASHER DIAMETER: 0.500 INCHES NOMINAL IN
•
THREAD LENGTH: 0.386 INCHES MINIMUM AND 0.426 INCHES MAXIMUM IN
•
HARDNESS RATING: 25.0 ROCKWELL C MINIMUM AND 30.0 ROCKWELL C MAXIMUM
•
NOMINAL THREAD DIAMETER: 0.216 INCHES IN
•
HEAD STYLE: HEXAGON EXTENDED WASHER
TECHNICAL CHARACTERISTICS
EXTENDED WASHER THICKNESS0.042 INCHES NOMINAL IN
HEAD HEIGHT0.151 INCHES NOMINAL IN
FASTENER LENGTH0.442 INCHES MINIMUM AND 0.474 INCHES MAXIMUM IN
EXTENDED WASHER DIAMETER0.500 INCHES NOMINAL IN
THREAD LENGTH0.386 INCHES MINIMUM AND 0.426 INCHES MAXIMUM IN
HARDNESS RATING25.0 ROCKWELL C MINIMUM AND 30.0 ROCKWELL C MAXIMUM
NOMINAL THREAD DIAMETER0.216 INCHES IN
HEAD STYLEHEXAGON EXTENDED WASHER
WIDTH BETWEEN FLATS0.375 INCHES NOMINAL IN
SCREW MATERIALSTEEL CORROSION RESISTING
SUBSTITUTES & CROSS-REFERENCES 1
00533Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is SC5257?
SC5257 is a SCREW,MACHINE.
What parts can replace SC5257?
There is 1 known substitute for SC5257: 00533. Substitute compatibility should be verified for your specific system.
What is the NSN for SC5257?
SC5257 is cataloged in the U.S. Government catalog under NSN 5305-00-095-3723. This indicates validated use in U.S. government and defense supply chains.
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