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REFERENCE IMAGE
EMANON PART NO.
MS51848-52
MS51848-52 is a washer in steel comp 301 overall or steel comp 302 overall or steel comp 303 overall or steel comp 303se overall or steel comp 304 overall or steel comp 304l overall or steel comp 305 overall or steel comp 308 overall or steel comp 309 overall or steel comp 309s overall or steel comp 310 overall or steel comp 310s overall or steel comp 314 overall or steel comp 316 overall or steel comp 316l overall or steel comp 317 overall or steel comp 321 overall or steel comp 347 overall or steel comp 348 overall or steel comp 385 overall or steel comp 302 overall or steel comp 384 overall and passivate overall finish.
Washer
REFERENCE IMAGEReference image — representative of the type, not the exact part; verify dimensions per specification.
SPECIFICATIONS
KEY DIMENSIONS
INSIDE DIAMETER0.380–0.390 in
OUTSIDE DIAMETER0.533 in maximum
MATERIAL & FINISH
MATERIALSteel 301/302/303/303se +17
MATERIAL SPEC66 FED STD
FINISHPassivate
FINISH SPECQQ-P-35
MECHANICAL
HARDNESS35–43 HRC
STANDARDS & TRACEABILITY
NSN5310-01-020-5947
GOVERNING STANDARDMS51848-52
FLIS · NSN 5310-01-020-5947 · retrieved 2026-08-08
DOCUMENTS
✓Certificate of Conformance — included with every order
No drawing on file — request it
MS51848-52 Lock 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.