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EMANON PART NO.
NAS1587-5L
NAS1587-5L is a washer in steel comp 321 overall or steel comp 348 overall or steel comp 347 overall and passivate overall finish.
Washer
SPECIFICATIONS
KEY DIMENSIONS
INSIDE DIAMETER0.315–0.324 in
OUTSIDE DIAMETER0.583–0.603 in
THICKNESS0.021–0.041 in
SHAPE
PERIPHERAL SHAPERound
CENTER HOLE SHAPERound
CROSS-SECTIONAL SHAPERectangular
MATERIAL & FINISH
MATERIALSteel comp 321 overall or steel comp 348 overall or steel comp 347 overall
MATERIAL SPECMIL-S-6721 — MIL SPEC · QQ-S-763,COND A — FED SPEC · MIL-S-6721 — MIL SPEC · QQ-S-763,COND A — FED SPEC
FINISHPassivate overall
STANDARDS & TRACEABILITY
NSN5310-00-883-3049
GOVERNING STANDARD80205-NAS1587
FLIS · NSN 5310-00-883-3049 · 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: 5/16", plain washer, 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.