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EMANON PART NO.
NAS1587-20
NAS1587-20 is a washer in steel comp 321 overall or steel comp 347 overall, passivate overall finish and 2-1/8 diameter.
Washer
SPECIFICATIONS
KEY DIMENSIONS
INSIDE DIAMETER1.250 in (1-1/4)
OUTSIDE DIAMETER2.125 in nom
THICKNESS0.062 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
NSN5310-01-135-5519
FLIS · NSN 5310-01-135-5519 · 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: 1-1/4", Diameter: 2-1/8"
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.