{"filing":{"accession_number":"0001437749-26-020791","cik":"0000080172","ticker":"NPK","company_name":"NATIONAL PRESTO INDUSTRIES INC","form":"8-K","filing_date":"2026-06-16","report_date":null,"primary_document":"npk20260611_8k.htm","primary_document_url":"https://www.sec.gov/Archives/edgar/data/80172/000143774926020791/npk20260611_8k.htm"},"events":[{"id":11287,"run_id":9905,"accession_number":"0001437749-26-020791","anchor_item_number":"8.01","event_type":"other_material","event_domain":"catchall","is_material":true,"confidence":0.72,"summary":"The disclosure announces a groundbreaking ceremony for a new state-of-the-art medium caliber ammunition production and test facility at NDC's Tech Ord campus in Clear Lake, South Dakota. This represents a material capital investment and operational expansion by the registrant's wholly owned subsidiary in defense manufacturing. While the filing does not explicitly quantify the investment or provide forward-looking financial impact, the announcement of a new production facility with \"state-of-the-art\" capabilities is material to investors assessing the registrant's growth strategy and capital allocation in the defense sector.","company_name":"NATIONAL PRESTO INDUSTRIES INC","ticker":"NPK","filing_date":"2026-06-16","form":"8-K","submitted_at":null,"items":[{"id":7840,"accession_number":"0001437749-26-020791","item_number":"8.01","item_title":"Other Events","event_type":"other_material","event_domain":"catchall","is_material":true,"confidence":0.72,"reasoning":"The disclosure announces a groundbreaking ceremony for a new state-of-the-art medium caliber ammunition production and test facility at NDC's Tech Ord campus in Clear Lake, South Dakota. This represents a material capital investment and operational expansion by the registrant's wholly owned subsidiary in defense manufacturing. While the filing does not explicitly quantify the investment or provide forward-looking financial impact, the announcement of a new production facility with \"state-of-the-art\" capabilities is material to investors assessing the registrant's growth strategy and capital allocation in the defense sector.","classifier_version":"claude-haiku-4-5-20251001+prompt-9e0ffca5","taxonomy_version":"v1","classified_at":"2026-06-16T20:05:09.360224+00:00","company_name":"","ticker":null,"filing_date":""}]}],"classifications":[{"id":7840,"accession_number":"0001437749-26-020791","item_number":"8.01","item_title":"Other Events","event_type":"other_material","event_domain":"catchall","is_material":true,"confidence":0.72,"reasoning":"The disclosure announces a groundbreaking ceremony for a new state-of-the-art medium caliber ammunition production and test facility at NDC's Tech Ord campus in Clear Lake, South Dakota. This represents a material capital investment and operational expansion by the registrant's wholly owned subsidiary in defense manufacturing. While the filing does not explicitly quantify the investment or provide forward-looking financial impact, the announcement of a new production facility with \"state-of-the-art\" capabilities is material to investors assessing the registrant's growth strategy and capital allocation in the defense sector.","classifier_version":"claude-haiku-4-5-20251001+prompt-9e0ffca5","taxonomy_version":"v1","classified_at":"2026-06-16T20:05:09.360224+00:00","company_name":"NATIONAL PRESTO INDUSTRIES INC","ticker":"NPK","filing_date":"2026-06-16"}]}