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Commodity PSU FRU delivery intervals for the illustrative stock-depth decision

Base 10 days; stress 20 daysmodeled

Value kindmodeled — Interpret this value according to its displayed kind, scope, source, and as-of date.
ScopeExact scenario delivery intervals for compatible commodity PSU FRUs, bounded by Chapter 14.6’s days-to-weeks commodity replenishment class; not GPU/HBM allocation or a supplier commitment.
As of2026-09-08
SourceGuide assumptions, September 8, 2026; Chapter 14.6 commodity-PSU logistics bounds the delivery scale. NIST supplies only the Poisson CDF method.
DerivationHold demand intensity fixed at 0.12 FRU/day; doubling lead time doubles the Poisson mean from 1.2 to 2.4. Stock is selected by the 99% cycle-coverage quantile, not mean demand.
Reviewchecking…cadence-derived review 2027-01-06 · standard cadence
Recorded changeslast 2026-09-16
Claim idpart14-spares-teaching-lead-times

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