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EMANON PART NO.
NAS1587-8C
NAS1587-8C is a washer in steel comp 321 overall or steel comp 347 overall and passivate overall finish.
Washer
SPECIFICATIONS
KEY DIMENSIONS
INSIDE DIAMETER0.504–0.515 in
OUTSIDE DIAMETER0.875 in nom
MATERIAL & FINISH
MATERIALSteel comp 321 overall or steel comp 347 overall
MATERIAL SPECMIL-S-6721 — MIL SPEC · QQ-S-763 — FED SPEC
FINISHPassivate overall
FINISH SPECQQ-P-35
MECHANICAL
HARDNESSNot rated
STANDARDS & TRACEABILITY
NSN5310-00-281-6347
GOVERNING STANDARD80205-NAS1587
FLIS · NSN 5310-00-281-6347 · retrieved 2026-08-08
DOCUMENTS
✓Certificate of Conformance & test reports available for most products (standard cert fees apply)
No drawing on file — request it
Size: 1/2", countersunk, stainless steel, NAS1587 series washer
Emanon is a stocking distributor — quality-system certifications are held by the certified manufacturers we source from, not by Emanon. Every shipment carries manufacturer certifications and full lot traceability.