643N86U — SCREW,TAPPING

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

643N86U: SCREW,TAPPING.

The SCREW,TAPPING is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: PAN, head_height: 0.105 INCHES MINIMUM AND 0.115 INCHES MAXIMUM IN, head_diameter: 0.306 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN, fastener_length: 0.375 INCHES NOMINAL IN, surface_treatment: CADMIUM OR ZINC OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5305-00-016-4354, 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

643N86U

NSN: 5305-00-016-4354
FSC: 5305 — Screws
CAGE: 58275 — SASCO INC CANADIAN DIV

SPECIFICATIONS

material	STEEL OVERALL
head_style	PAN
head_height	0.105 INCHES MINIMUM AND 0.115 INCHES MAXIMUM IN
head_diameter	0.306 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN
fastener_length	0.375 INCHES NOMINAL IN
surface_treatment	CADMIUM OR ZINC OVERALL
internal_drive_style	CROSS RECESS TYPE 1
nonmachine_thread_style	DOG TYPE (TYPE B OR C)
nonmachine_nominal_thread_diameter	0.164 INCHES IN
surface_treatment_document_and_classification	QQ-P-416,TY 2,CL 3 FED SPEC 1ST TREATMENT RESPONSE OR QQ-Z-325,TY 2,CL 3 FED SPEC 2ND TREATMENT RESPONSE OVERALL
NSN	5305-00-016-4354

COMPONENT DIAGRAM

KEY FEATURES

•

NONMACHINE NOMINAL THREAD DIAMETER: 0.164 INCHES IN

•

HEAD HEIGHT: 0.105 INCHES MINIMUM AND 0.115 INCHES MAXIMUM IN

•

FASTENER LENGTH: 0.375 INCHES NOMINAL IN

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 2,CL 3 FED SPEC 1ST TREATMENT RESPONSE OR QQ-Z-325,TY 2,CL 3 FED SPEC 2ND TREATMENT RESPONSE OVERALL

•

NONMACHINE THREAD STYLE: DOG TYPE (TYPE B OR C)

•

HEAD STYLE: PAN

•

SURFACE TREATMENT: CADMIUM OR ZINC OVERALL

•

INTERNAL DRIVE STYLE: CROSS RECESS TYPE 1

TECHNICAL CHARACTERISTICS

NONMACHINE NOMINAL THREAD DIAMETER	0.164 INCHES IN
HEAD HEIGHT	0.105 INCHES MINIMUM AND 0.115 INCHES MAXIMUM IN
FASTENER LENGTH	0.375 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416,TY 2,CL 3 FED SPEC 1ST TREATMENT RESPONSE OR QQ-Z-325,TY 2,CL 3 FED SPEC 2ND TREATMENT RESPONSE OVERALL
NONMACHINE THREAD STYLE	DOG TYPE (TYPE B OR C)
HEAD STYLE	PAN
SURFACE TREATMENT	CADMIUM OR ZINC OVERALL
INTERNAL DRIVE STYLE	CROSS RECESS TYPE 1
MATERIAL	STEEL OVERALL
HEAD DIAMETER	0.306 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN

SUBSTITUTES & CROSS-REFERENCES 2

FFS107TYPECSTYLE9SReference document

Same NSN cross-reference

Reference document — Identification reference

164354Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

LIFECYCLE

NSN statusCancelled· U.S. Government catalog

Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 643N86U?

643N86U is a SCREW,TAPPING.

What parts can replace 643N86U?

There are 2 known substitutes for 643N86U: FFS107TYPECSTYLE9S, 164354. Substitute compatibility should be verified for your specific system.

What is the NSN for 643N86U?

643N86U is cataloged in the U.S. Government catalog under NSN 5305-00-016-4354. This indicates validated use in U.S. government and defense supply chains.

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