FPDS Query Library
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Accession Number

NASA accession number recorded on the IDV as an internal identifier for the agreement record. It is a structured reference used by NASA to track and link procurement documentation across systems.

Family: IDV
Category: NASA Specific Fields
Data Type: identifier_or_code
Semantic Type: identifier
Mapping: flattened_fpds_xml_field
AI Confidence: high

Variable Overview

FPDS Query Variable
content__IDV__agencySpecificIDVElements__NASASpecificIDVElements__accessionNumber
Title
Accession Number
FPDS Path
IDV/agencySpecificIDVElements/NASASpecificIDVElements/accessionNumber
Description
NASA accession number recorded on the IDV as an internal identifier for the agreement record. It is a structured reference used by NASA to track and link procurement documentation across systems.
Business Meaning
This field matters when analysts need to reconcile FPDS records with NASA internal award files, validate document lineage, or trace the agreement to supporting procurement artifacts. It can also help distinguish otherwise similar IDVs in NASA-specific reporting and audit work.
Example Value
255-19-0601
Observed Non-Null Count
2,224

FPDS Compare

FPDS Query Variable
content__IDV__agencySpecificIDVElements__NASASpecificIDVElements__accessionNumber
FPDS XML Path
IDV/agencySpecificIDVElements/NASASpecificIDVElements/accessionNumber
Mapping Type
flattened_fpds_xml_field
Comparison Summary
FPDS Query flattens the original nested FPDS XML path 'IDV/agencySpecificIDVElements/NASASpecificIDVElements/accessionNumber' into the SQL-ready variable 'content__IDV__agencySpecificIDVElements__NASASpecificIDVElements__accessionNumber'.

Use Cases

  • Dictionary lookup and field explanation
  • SQL filtering and grouping
  • Analytical reporting and reusable query building
  • NASA-specific IDV record interpretation

Common Usage

  • Linking FPDS IDV records to NASA internal procurement repositories
  • Reconciling award documents during audit or compliance reviews
  • Filtering NASA IDVs by a known accession number

Common Mistakes

  • Using the field as a unique government-wide award identifier
  • Normalizing or truncating the value and breaking exact-match joins

Query Guidance

Filter with exact string comparison when the accession number is known, and store/search it as a text field to preserve punctuation and leading zeros. For joins, match on the full raw value and avoid casting to numeric types; if multiple NASA-specific identifiers are available, combine them with other award keys rather than relying on this field alone.

SQL Examples

Preview values

SELECT
    content__IDV__agencySpecificIDVElements__NASASpecificIDVElements__accessionNumber AS accession_number
FROM fpds.data
WHERE content__IDV__agencySpecificIDVElements__NASASpecificIDVElements__accessionNumber IS NOT NULL
LIMIT 25

Top values

SELECT
    content__IDV__agencySpecificIDVElements__NASASpecificIDVElements__accessionNumber AS value,
    count() AS record_count
FROM fpds.data
WHERE content__IDV__agencySpecificIDVElements__NASASpecificIDVElements__accessionNumber IS NOT NULL
GROUP BY value
ORDER BY record_count DESC
LIMIT 25

Each dictionary item includes SQL-ready examples generated alongside the variable metadata, allowing immediate use in FPDS Query for filtering, aggregation, and analysis.