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EMANON PART NO.
NAS1587-7L
NAS1587-7L is a washer in steel comp 321 overall or steel comp 347 overall, passivate overall finish and 25/32 diameter.
Washer
SPECIFICATIONS
KEY DIMENSIONS
INSIDE DIAMETER0.438 in (7/16)
OUTSIDE DIAMETER0.781 in nom
THICKNESS0.031 in nom
SHAPE
PERIPHERAL SHAPERound
CENTER HOLE SHAPERound
CROSS-SECTIONAL SHAPERectangular
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
STANDARDS & TRACEABILITY
NSN5310-00-279-9077
GOVERNING STANDARD80205-NAS1587
FLIS · NSN 5310-00-279-9077 · retrieved 2026-08-08
DOCUMENTS
✓Certificate of Conformance & test reports available for most products (standard cert fees apply)
No drawing on file — request it
Hole Diameter: 7/16", Diameter: 25/32"
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.