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5187443 — SCREW,EXTERNALLY RELIEVED BODY

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

5187443: SCREW,EXTERNALLY RELIEVED BODY.

The SCREW,EXTERNALLY RELIEVED BODY is a the manufacturer industrial component. Key specifications include head_style: FILLISTER, thread_class: 2A A, fastener_length: 0.750 INCHES NOMINAL IN, thread_direction: RIGHT-HAND, surface_treatment: PASSIVATE OVERALL, point_chamfer_angle: 90.0 DEGREES NOMINAL. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-198-4147, 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
5187443
NSN: 5305-01-198-4147
FSC: 5305 — Screws
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
head_styleFILLISTER
thread_class2A A
fastener_length0.750 INCHES NOMINAL IN
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE OVERALL
point_chamfer_angle90.0 DEGREES NOMINAL
internal_drive_styleCROSS RECESS TYPE 1
nominal_thread_diameter0.190 INCHES IN
first_diameter_from_head0.135 INCHES NOMINAL IN
thread_quantity_per_inch32
thread_series_designatorUNF
externally_relieved_body_diameter_quantity1
NSN5305-01-198-4147
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 5187443 · 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
•
FASTENER LENGTH: 0.750 INCHES NOMINAL IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
POINT CHAMFER ANGLE: 90.0 DEGREES NOMINAL
•
FIRST DIAMETER FROM HEAD: 0.135 INCHES NOMINAL IN
•
NOMINAL THREAD DIAMETER: 0.190 INCHES IN
•
HEAD STYLE: FILLISTER
•
THREAD DIRECTION: RIGHT-HAND
•
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER: 0.250 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
FASTENER LENGTH0.750 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
POINT CHAMFER ANGLE90.0 DEGREES NOMINAL
FIRST DIAMETER FROM HEAD0.135 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER0.190 INCHES IN
HEAD STYLEFILLISTER
THREAD DIRECTIONRIGHT-HAND
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER0.250 INCHES NOMINAL IN
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY1
SURFACE TREATMENTPASSIVATE 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

No substitute or cross-reference records for this part.

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 5187443?
5187443 is a SCREW,EXTERNALLY RELIEVED BODY.
What is the NSN for 5187443?
5187443 is cataloged in the U.S. Government catalog under NSN 5305-01-198-4147. This indicates validated use in U.S. government and defense supply chains.
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