Template

Spares Criticality Matrix & Replenishment Rule Template

Interactive template to score spares criticality, record part and supplier data, and capture recommended reorder points, min/max rules, obsolescence flags, and periodic review cadence for CMMS/ERP alignment.

Interactive Tool

Spares Criticality Matrix & Replenishment Rule Template - Entry

Purpose

This template helps teams classify each spare part by criticality, capture key parameters (lead time, usage, redundancy, supplier risk, obsolescence), and record target replenishment rules so MRO inventory supports uptime without excess working capital.

Scoring rubric (use the numeric scales below)

  • Impact of failure (1–5): 1 = trivial local impact, 5 = production stoppage, safety, regulatory or major customer impact.
  • Lead time (1–5): 1 = same-day available, 5 = many months / custom.
  • Redundancy (1–5): 1 = many identical spares / redundant systems, 5 = single point without spare.
  • Annual usage (1–5): 1 = rarely used, 5 = frequent consumption.
  • Supplier risk (1–5): 1 = multiple reliable suppliers, 5 = sole-source / high obsolescence risk.

Quick class guidance (example thresholds)

  • Critical (total score 17–25): Hold dedicated safety stock; aim for very high service level (95–99%).
  • Class A (13–16): High priority—maintain safety stock and fast reorder policies.
  • Class B (8–12): Manage with regular review and replenish as needed.
  • Class C (0–7): Low priority—consider consignment, vendor-managed inventory, or defer stocking.

Suggested min/max and reorder guidance (examples)

Recommended reorder point (ROP) formula: ROP = LeadTimeDemand + SafetyStock. LeadTimeDemand = LeadTimeDays × average daily usage. SafetyStock varies by class (Critical = higher). Example safety stock by class: Critical = 14 days demand, A = 7 days, B = 3 days, C = 0–1 day.

Min/Max practical suggestion: Min = SafetyStock; Max = LeadTimeDemand + OrderMultiple (or a quarter-year consumption cap).

Note: This template collects inputs and recommended values — integrate with CMMS/ERP or run periodic batch calculations to compute ROP and order quantities automatically.

Unique identifier used in CMMS or ERP (e.g., SKU, internal number).
Short descriptive name used on inventory records.
Asset identifier this spare is primarily associated with (if applicable).
Operational, safety, quality, regulatory, or customer impact.
1.0 10.0
Typical procurement lead time from order to delivery. Use mean or validated supplier commitment.
Translate leadTimeDays into a 1–5 score (guidance: 1=0–2d, 2=3–7d, 3=8–21d, 4=22–60d, 5=>60d).
1.0 10.0
How many alternative spares or redundant systems exist?
1.0 10.0
Average consumption per year based on historical demand or forecasts.
Translate annual usage into 1–5 for scoring (guidance: 1=0–1/yr, 2=2–5/yr, 3=6–20/yr, 4=21–100/yr, 5=>100/yr).
1.0 10.0
Consider sole-source, single-factory, obsolescence, financial risk.
1.0 10.0
Physical count or latest inventory balance.
If known, else the system/user can compute: annualUsage / 365.
This field is informational — enter the sum of the five score fields or leave blank if you compute externally.
Choose class after scoring. Example thresholds: Critical 17–25; A 13–16; B 8–12; C 0–7.
Enter safety stock expressed as days of average demand. Example by class: Critical = 14, A = 7, B = 3, C = 0–1.
ROP = LeadTimeDays × averageDailyUsage + (suggestedSafetyStockDays × averageDailyUsage). If averageDailyUsage not entered, compute after export/integration.
Suggested: equal to safety stock (units).
Suggested: LeadTimeDemand + order multiple or quarterly cap.
If you prefer fixed multiples or economic order quantity guidance, record it here.
List supplier names, contact records, and part numbers.
Mark yes if part is nearing end-of-life or has diminishing sources.
Describe alternatives, redesign options, or recommended lifetime buys.
Reference failure mode IDs or PM task IDs in your CMMS so parts are traceable to failure logic.
Date of last validation or count (YYYY-MM-DD).
How frequently this part will be reviewed for count and policy accuracy.
Anything else the maintenance or procurement team should know (e.g., lead time variability, test fit requirements).
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