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206642-3 — SCREW,EXTERNALLY RELIEVED BODY

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

206642-3: SCREW,EXTERNALLY RELIEVED BODY.

The SCREW,EXTERNALLY RELIEVED BODY is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303 OR STEEL COMP 203EZ OR STEEL COMP 303MA OR STEEL COMP 303 PLUS X OVERALL, head_style: FLAT FILLISTER, head_height: 0.063 INCHES NOMINAL IN, thread_class: 2A A, head_diameter: 0.375 INCHES NOMINAL IN, thread_length: 0.313 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-442-9730, 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
206642-3
NSN: 5305-01-442-9730
FSC: 5305 — Screws
CAGE: 0AF43 — TRANSISTOR DEVICES INC FLORIDA DIV (USA)
SPECIFICATIONS
materialSTEEL COMP 303 OR STEEL COMP 203EZ OR STEEL COMP 303MA OR STEEL COMP 303 PLUS X OVERALL
head_styleFLAT FILLISTER
head_height0.063 INCHES NOMINAL IN
thread_class2A A
head_diameter0.375 INCHES NOMINAL IN
thread_length0.313 INCHES NOMINAL IN
fastener_length0.839 INCHES MINIMUM AND 0.854 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE OVERALL
internal_drive_styleSLOT
nominal_thread_diameter0.190 INCHES IN
first_diameter_from_head0.125 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN
NSN5305-01-442-9730
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 206642-3 · 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: 0.063 INCHES NOMINAL IN
•
FASTENER LENGTH: 0.839 INCHES MINIMUM AND 0.854 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.313 INCHES NOMINAL IN
•
FIRST DIAMETER FROM HEAD: 0.125 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN
•
NOMINAL THREAD DIAMETER: 0.190 INCHES IN
•
HEAD STYLE: FLAT FILLISTER
•
THREAD DIRECTION: RIGHT-HAND
•
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER: 0.526 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.063 INCHES NOMINAL IN
FASTENER LENGTH0.839 INCHES MINIMUM AND 0.854 INCHES MAXIMUM IN
THREAD LENGTH0.313 INCHES NOMINAL IN
FIRST DIAMETER FROM HEAD0.125 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.190 INCHES IN
HEAD STYLEFLAT FILLISTER
THREAD DIRECTIONRIGHT-HAND
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER0.526 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.
5305-00-000-0094 5305-00-000-1397 5305-00-000-2625 5305-00-000-3669 5305-00-000-3830 5305-00-000-3831
SUBSTITUTES & CROSS-REFERENCES

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 206642-3?
206642-3 is a SCREW,EXTERNALLY RELIEVED BODY.
What is the NSN for 206642-3?
206642-3 is cataloged in the U.S. Government catalog under NSN 5305-01-442-9730. This indicates validated use in U.S. government and defense supply chains.
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