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521859 — SPACER,RING

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

521859: SPACER,RING.

The SPACER,RING is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY, inside_diameter: 0.760 INCHES MINIMUM AND 0.770 INCHES MAXIMUM IN, outside_diameter: 1.000 INCHES NOMINAL IN, overall_thickness: 0.060 INCHES NOMINAL IN, material_document_and_classification: QQ-C-502,SOFT FED SPEC SINGLE MATERIAL RESPONSE. This part is cataloged in the U.S.

Government catalog under NSN 5365-00-699-6331, 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
521859
NSN: 5365-00-699-6331
FSC: 5365 — Bushings, Rings, Shims, and Spacers
CAGE: 02978 — RENK AMERICA LLC DIV RENK AMERICA (USA)
SPECIFICATIONS
materialCOPPER ALLOY
inside_diameter0.760 INCHES MINIMUM AND 0.770 INCHES MAXIMUM IN
outside_diameter1.000 INCHES NOMINAL IN
overall_thickness0.060 INCHES NOMINAL IN
material_document_and_classificationQQ-C-502,SOFT FED SPEC SINGLE MATERIAL RESPONSE
NSN5365-00-699-6331
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SPACER,RING TITLE COMPONENT PN 521859 MFR SPACER,RING
KEY FEATURES
•
OUTSIDE DIAMETER: 1.000 INCHES NOMINAL IN
•
OVERALL THICKNESS: 0.060 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-C-502,SOFT FED SPEC SINGLE MATERIAL RESPONSE
•
INSIDE DIAMETER: 0.760 INCHES MINIMUM AND 0.770 INCHES MAXIMUM IN
•
MATERIAL: COPPER ALLOY
TECHNICAL CHARACTERISTICS
OUTSIDE DIAMETER1.000 INCHES NOMINAL IN
OVERALL THICKNESS0.060 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-C-502,SOFT FED SPEC SINGLE MATERIAL RESPONSE
INSIDE DIAMETER0.760 INCHES MINIMUM AND 0.770 INCHES MAXIMUM IN
MATERIALCOPPER ALLOY
OTHER ITEMS IN FSC 5365 — Bushings, Rings, Shims, and Spacers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5365-00-000-6078 5365-00-000-7436 5365-00-001-1292 5365-00-001-1365 5365-00-001-1841 5365-00-001-1915 5365-00-001-1916 5365-00-001-1940
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 521859?
521859 is a SPACER,RING.
What is the NSN for 521859?
521859 is cataloged in the U.S. Government catalog under NSN 5365-00-699-6331. 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.