RPPO ACTUAL PRACTICE QUESTIONS WITH
DETAILED EXPLANATIONS 2026
◉ Example of APL.
Answer: 8 digits: 00028167
10 digits: 590330122A
◉ Define AEL.
Answer: An 11 digit code that identifies NON-MAINTENANCE
related parts for a specific system onboard. Consumable funds are
used for all AEL's.
◉ AEL.
Answer: Allowance Equipage List
◉ Example of AEL.
Answer: 11 digits: 5903301225A
11 digits: 0-0064002939
◉ SPMIG.
Answer: Standard PMS Material Identification Guide
,◉ Define SPMIG.
Answer: Used to look up NIIN's related to maintenance.
◉ CAGE.
Answer: Commercial and Government Entity
*Note: used to identify manufacturer
◉ How many digits does a CAGE have?.
Answer: 5
◉ What's the purpose of OMMS-NG?.
Answer: Used to order repair and repairable parts.
◉ NSN.
Answer: National Stock Number
◉ Define NSN.
Answer: Used to identify all items of material in the Federal Supply
Distribution System.
, All items of supply which are centrally managed or procured for the
stock system are required to have an NSN.
◉ Example of NSN.
Answer: 13 digits: 3120-01-438-7640
◉ NIIN.
Answer: National Item Identification Number
◉ Define NIIN.
Answer: Consists of a (2) digit National Codification Bureau code
(NCB), country of origin.
◉ Example of NIIN.
Answer: 9 digits: 01-542-4562
*Note: (01) is the NCB.
◉ Open Purchase.
Answer: For materials greater than $5,000.00, obtain three quotes
from three vendors.
DETAILED EXPLANATIONS 2026
◉ Example of APL.
Answer: 8 digits: 00028167
10 digits: 590330122A
◉ Define AEL.
Answer: An 11 digit code that identifies NON-MAINTENANCE
related parts for a specific system onboard. Consumable funds are
used for all AEL's.
◉ AEL.
Answer: Allowance Equipage List
◉ Example of AEL.
Answer: 11 digits: 5903301225A
11 digits: 0-0064002939
◉ SPMIG.
Answer: Standard PMS Material Identification Guide
,◉ Define SPMIG.
Answer: Used to look up NIIN's related to maintenance.
◉ CAGE.
Answer: Commercial and Government Entity
*Note: used to identify manufacturer
◉ How many digits does a CAGE have?.
Answer: 5
◉ What's the purpose of OMMS-NG?.
Answer: Used to order repair and repairable parts.
◉ NSN.
Answer: National Stock Number
◉ Define NSN.
Answer: Used to identify all items of material in the Federal Supply
Distribution System.
, All items of supply which are centrally managed or procured for the
stock system are required to have an NSN.
◉ Example of NSN.
Answer: 13 digits: 3120-01-438-7640
◉ NIIN.
Answer: National Item Identification Number
◉ Define NIIN.
Answer: Consists of a (2) digit National Codification Bureau code
(NCB), country of origin.
◉ Example of NIIN.
Answer: 9 digits: 01-542-4562
*Note: (01) is the NCB.
◉ Open Purchase.
Answer: For materials greater than $5,000.00, obtain three quotes
from three vendors.