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687-3521-001 — 687-3521-001

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

687-3521-001: 687-3521-001.

The 687-3521-001 is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 2024, inside_diameter: 0.128 INCHES NOMINAL IN, outside_diameter: 0.500 INCHES NOMINAL IN, screw_drive_type: HEXAGON SOCKET, style_designator: TAPERED WITH COUNTERSUNK FACE, attachment_method: SETSCREWS. This part is cataloged in the U.S.

Government catalog under NSN 5355-01-349-8431, 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
687-3521-001
NSN: 5355-01-349-8431
FSC: 5355 — Knobs and Pointers
CAGE: 13499 — ROCKWELL COLLINS, INC. DBA COLLINS AEROSPACE GOVERNMENT SYSTEMS DIV COLLINS AEROSPACE - GOVERNMENT SYSTEMS (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 2024
inside_diameter0.128 INCHES NOMINAL IN
outside_diameter0.500 INCHES NOMINAL IN
screw_drive_typeHEXAGON SOCKET
special_featuresINDEX LINE TO BE .007 TO .015 DEEP WHEN FILLED.INDEX LINE TO BE FILLED WITH WATER SOLUBLE WHITE,COLOR NUMBER 37875,PER FED-STD-595
style_designatorTAPERED WITH COUNTERSUNK FACE
attachment_methodSETSCREWS
overall_thickness0.800 INCHES NOMINAL IN
reference_markingINDICATOR LINE
nominal_thread_size0.112 INCHES SCREW HOLE IN
setscrew_hole_quantity2
end_item_identificationACPC CAGE 13499
NSN5355-01-349-8431
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available 687-3521-001 TITLE COMPONENT PN 687-3521-001 MFR 687-3521-001
KEY FEATURES
•
DISTANCE FROM HOLE CENTER TO KNOB/SKIRT BASE: 0.095 INCHES MINIMUM IN
•
SHAFT ACCOMMODATION STYLE: ROUND
•
OVERALL THICKNESS: 0.800 INCHES NOMINAL IN
•
STYLE DESIGNATOR: TAPERED WITH COUNTERSUNK FACE
•
OUTSIDE DIAMETER: 0.500 INCHES NOMINAL IN
•
REFERENCE MARKING: INDICATOR LINE
•
SETSCREW HOLE QUANTITY: 2
•
NOMINAL THREAD SIZE: 0.112 INCHES SCREW HOLE IN
TECHNICAL CHARACTERISTICS
DISTANCE FROM HOLE CENTER TO KNOB/SKIRT BASE0.095 INCHES MINIMUM IN
SHAFT ACCOMMODATION STYLEROUND
OVERALL THICKNESS0.800 INCHES NOMINAL IN
STYLE DESIGNATORTAPERED WITH COUNTERSUNK FACE
OUTSIDE DIAMETER0.500 INCHES NOMINAL IN
REFERENCE MARKINGINDICATOR LINE
SETSCREW HOLE QUANTITY2
NOMINAL THREAD SIZE0.112 INCHES SCREW HOLE IN
INSIDE DIAMETER0.128 INCHES NOMINAL IN
GRIPPING SURFACE CONDITIONGRIP AID
OTHER ITEMS IN FSC 5355 — Knobs and Pointers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5355-00-000-5777 5355-00-001-2029 5355-00-001-2403 5355-00-001-4109 5355-00-001-4677 5355-00-001-4724 5355-00-001-4730 5355-00-001-4734
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 687-3521-001?
687-3521-001 is a 687-3521-001.
What is the NSN for 687-3521-001?
687-3521-001 is cataloged in the U.S. Government catalog under NSN 5355-01-349-8431. 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.