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EMANON PART NO.
NAS1587-7C
NAS1587-7C is a washer in steel comp 321 or steel comp 347 and passivate finish.
Washer
SPECIFICATIONS
KEY DIMENSIONS
INSIDE DIAMETER0.441–0.451 in
OUTSIDE DIAMETER0.781 in
MATERIAL & FINISH
MATERIALSteel comp 321 or steel comp 347
MATERIAL SPECMIL-S-6721 — MIL SPEC · QQ-S-763 — FED SPEC
FINISHPassivate
FINISH SPECQQ-P-35
MECHANICAL
HARDNESSNot rated
STANDARDS & TRACEABILITY
NSN5310-00-279-9083
GOVERNING STANDARD80205-NAS1587
FLIS · NSN 5310-00-279-9083 · 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: 7/16", countersunk, corrosion resistant steel
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.