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EMANON PART NO.
MS51021-102
MS51021-102 is a screw in steel comp 301 overall or steel comp 302 overall or steel comp 303 overall or steel comp 303f 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 323 overall or steel comp 324 overall or steel comp 347 overall or steel comp 348 overall or steel comp 385 overall, passivate overall finish, 0.112 INCHES diameter and 3/16 length.
Screw
SPECIFICATIONS
KEY DIMENSIONS
DIAMETER0.112 in
LENGTH0.188 in (3/16)
THREAD LENGTHMinimum 0.178 in; maximum 0.198 in
THREAD
THREAD4-40
HEAD & DRIVE
HEADHeadless (setscrew)
WIDTH ACROSS FLATS0.050 in nom
MATERIAL & FINISH
MATERIALSteel comp 301 overall or steel comp 302 overall or steel comp 303 overall or steel comp 303f 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 323 overall or steel comp 324 overall or steel comp 347 overall or steel comp 348 overall or steel comp 385 overall
MATERIAL SPEC66 — FED STD
FINISHPassivate overall
FINISH SPECQQ-P-35
STANDARDS & TRACEABILITY
NSN5305-01-004-6924
FLIS · NSN 5305-01-004-6924 · retrieved 2026-08-09
DOCUMENTS
✓Certificate of Conformance & test reports available for most products (standard cert fees apply)
No drawing on file — request it
Fastener Length: 3/16", Thread: 4-40, Head Width: 1/16", Thread Length: 3/16
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.