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918571 — SCREW,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

918571: SCREW,MACHINE.

The SCREW,MACHINE is a the manufacturer industrial component. Key specifications include head_style: FLAT COUNTERSUNK, head_diameter: 4.7 MILLIMETERS NOMINAL MM, thread_length: 9.1 MILLIMETERS MINIMUM AND 10.0 MILLIMETERS MAXIMUM MM, screw_material: STEEL COMP 316, fastener_length: 10.0 MILLIMETERS NOMINAL MM, thread_direction: RIGHT-HAND. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-333-8322, 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
918571
NSN: 5305-01-333-8322
NIINs: 013338322, 014531871
FSC: 5305 — Screws
CAGE: 23386 — THALES DEFENSE & SECURITY INC DBA THALES COMMUNICATIONS INC (USA)
SPECIFICATIONS
head_styleFLAT COUNTERSUNK
head_diameter4.7 MILLIMETERS NOMINAL MM
thread_length9.1 MILLIMETERS MINIMUM AND 10.0 MILLIMETERS MAXIMUM MM
screw_materialSTEEL COMP 316
fastener_length10.0 MILLIMETERS NOMINAL MM
thread_directionRIGHT-HAND
countersink_angle90.0 DEGREES NOMINAL
internal_drive_styleSLOT
nominal_thread_diameter2.5 MILLIMETERS MM
thread_series_designatorM
thread_pitch_in_millimeters0.45
external_thread_tolerance_class6G G
NSN5305-01-333-8322
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 918571 · 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
•
EXTERNAL THREAD TOLERANCE CLASS: 6G G
•
FASTENER LENGTH: 10.0 MILLIMETERS NOMINAL MM
•
THREAD PITCH IN MILLIMETERS: 0.45
•
THREAD LENGTH: 9.1 MILLIMETERS MINIMUM AND 10.0 MILLIMETERS MAXIMUM MM
•
NOMINAL THREAD DIAMETER: 2.5 MILLIMETERS MM
•
HEAD STYLE: FLAT COUNTERSUNK
•
THREAD DIRECTION: RIGHT-HAND
•
SCREW MATERIAL: STEEL COMP 316
TECHNICAL CHARACTERISTICS
EXTERNAL THREAD TOLERANCE CLASS6G G
FASTENER LENGTH10.0 MILLIMETERS NOMINAL MM
THREAD PITCH IN MILLIMETERS0.45
THREAD LENGTH9.1 MILLIMETERS MINIMUM AND 10.0 MILLIMETERS MAXIMUM MM
NOMINAL THREAD DIAMETER2.5 MILLIMETERS MM
HEAD STYLEFLAT COUNTERSUNK
THREAD DIRECTIONRIGHT-HAND
SCREW MATERIALSTEEL COMP 316
INTERNAL DRIVE STYLESLOT
COUNTERSINK ANGLE90.0 DEGREES NOMINAL
SUBSTITUTES & CROSS-REFERENCES 1
DIN963M2.5X10Same 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 918571?
918571 is a SCREW,MACHINE.
What parts can replace 918571?
There is 1 known substitute for 918571: DIN963M2.5X10. Substitute compatibility should be verified for your specific system.
What is the NSN for 918571?
918571 is cataloged in the U.S. Government catalog under NSN 5305-01-333-8322. This indicates validated use in U.S. government and defense supply chains.
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