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HL646-5-4 — PIN-RIVET

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

HL646-5-4: PIN-RIVET.

The PIN-RIVET is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, head_style: COUNTERSUNK W/REVERSE CHAMFER, head_height: 0.575 INCHES NOMINAL IN, thread_class: 2A A, shank_diameter: 0.163 INCHES NOMINAL IN, surface_treatment: PASSIVATE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5320-01-643-2080, 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
HL646-5-4
NSN: 5320-01-643-2080
FSC: 5320 — Rivets
CAGE: 73197 — HI-SHEAR CORPORATION (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
head_styleCOUNTERSUNK W/REVERSE CHAMFER
head_height0.575 INCHES NOMINAL IN
thread_class2A A
shank_diameter0.163 INCHES NOMINAL IN
surface_treatmentPASSIVATE OVERALL
head_major_diameter0.314 INCHES NOMINAL IN
end_item_identificationB1-B AIRCRAFT
minimum_tensile_strength125000 POUNDS PER SQUARE INCH LBS
thread_quantity_per_inch32
thread_series_designatorUNJC
part_name_assigned_by_controlling_agencyHYLOK PIN, PROTRUDING TENSION HEAD
NSN5320-01-643-2080
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available PIN-RIVET TITLE COMPONENT PN HL646-5-4 MFR PIN-RIVET
KEY FEATURES
•
SHANK DIAMETER: 0.163 INCHES NOMINAL IN
•
HEAD HEIGHT: 0.575 INCHES NOMINAL IN
•
HEAD STYLE: COUNTERSUNK W/REVERSE CHAMFER
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
MINIMUM TENSILE STRENGTH: 125000 POUNDS PER SQUARE INCH LBS
•
THREAD CLASS: 2A A
TECHNICAL CHARACTERISTICS
SHANK DIAMETER0.163 INCHES NOMINAL IN
HEAD HEIGHT0.575 INCHES NOMINAL IN
HEAD STYLECOUNTERSUNK W/REVERSE CHAMFER
SURFACE TREATMENTPASSIVATE OVERALL
MINIMUM TENSILE STRENGTH125000 POUNDS PER SQUARE INCH LBS
PART NAME ASSIGNED BY CONTROLLING AGENCYHYLOK PIN, PROTRUDING TENSION HEAD
THREAD CLASS2A A
END ITEM IDENTIFICATIONB1-B AIRCRAFT
THREAD QUANTITY PER INCH32
MATERIALSTEEL CORROSION RESISTING OVERALL
OTHER ITEMS IN FSC 5320 — Rivets
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5320-00-001-1756 5320-00-001-2042 5320-00-001-3944 5320-00-001-5126 5320-00-001-5151 5320-00-001-5152 5320-00-001-5153
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is HL646-5-4?
HL646-5-4 is a PIN-RIVET.
What is the NSN for HL646-5-4?
HL646-5-4 is cataloged in the U.S. Government catalog under NSN 5320-01-643-2080. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.