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REFERENCE IMAGE
EMANON PART NO.
MS51957-31B
MS51957-31B is a screw in 0.138 INCHES diameter and 0.594 INCHES MINIMUM AND 0.625 INCHES MAXIMUM length.
Screw
REFERENCE IMAGEReference image — representative of the type, not the exact part; verify dimensions per specification.
SPECIFICATIONS
KEY DIMENSIONS
DIAMETER0.138 in
LENGTH0.594–0.625 in
THREAD LENGTH0.532–0.625 in
THREAD
THREAD0.138-32 UNC-2A right-hand
HEAD & DRIVE
HEADA23 pan
HEAD HEIGHT0.087–0.097 in
MECHANICAL
TENSILE STRENGTH80,000 psi
STANDARDS & TRACEABILITY
NSN5305-00-448-6456
GOVERNING STANDARDMS51957-31B
FLIS · NSN 5305-00-448-6456 · retrieved 2026-08-07
DOCUMENTS
✓Certificate of Conformance — included with every order
No drawing on file — request it
MS51957-31B
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.