Printed from https://fiscalreceipts.com/program/MK21A0/ — data as of July 28, 2026. Every figure is citation-backed; see the page online for per-number provenance.
Mk21A Reentry Vehicle
Budget Figures
FY2026 award data is a partial year — USASpending awards are reported on a rolling basis and the fiscal year does not close until September 30. why partial FY2026 data? →
● actuals (line) · ○ enacted · ◇ request — gaps are editions the program is absent from, never interpolated.
| Series | FY25 |
|---|---|
| Enacted | $26.2M |
| Request | $26.2M |
blank = series not published for this year; – = absent from that edition.
Program Lineage
No predecessor/successor lineage was recorded for this program element — no FY-to-FY transfer into or out of this line was stated in the ingested J-books, and none was inferred from the program structure.
Description
Description — Mk21A Reentry Vehicle
The Mk21A Reentry Vehicle (RV) program will design, develop, produce, and deploy an integrated RV capable of delivering the W87-1 warhead when released from the LGM-35A Sentinel weapon system. The Mk21A program will provide needed performance and security enhancements over the Mk21 RV to meet the upgraded requirements for the Department of Energy/National Nuclear Security Administration W87-1 warhead, while ensuring the time certain delivery of both the W87-1 and Mk21A programs. The Mk21A will also meet the requirements laid out in the LGM-35A Sentinel weapon system Capability Development Document (CDD) as directed by Air Force Global Strike Command. The Mk21A RV includes: shape stable nose tip; high impulse transducer; arming and fuzing subsystem (AFS); aeroshell forward section, body section, and rear cover; radio frequency subsystem with antennas; RV spin subsystem; in-flight disconnect cable; and other electrical cables. Heatshield Life of Type Buy (LOTB): In FY 2025, the Air Force executed a LOTB to procure and process the heatshield materials to reduce supplier risks in the industrial base. IAW 10 USC 4252, this program has not yet fully satisfied the certification requirement that the heatshield technology has been demonstrated in a relevant environment as required prior to Milestone B approval. The Mk21A uses similar materials and process as currently fielded and the program performed a successful flight test in 3QFY24. The program provided a Technology Readiness Level (TRL) update to SAF/AQR in April 2025 after analysis of flight test data was completed; final decision anticipated 3QFY25. Funding for this exhibit contained in PE 0101328F. Funding may be used to address Diminishing Manufacturing Sources (DMS) issues.
Justification
Justification — Mk21A Reentry Vehicle
No FY2026 funding requested
Budget Line Items(workbook-cited)
Exhibit P-1
| Account | Org | Type | Amount |
|---|---|---|---|
| Missile Procurement, Air Force | F | FY25 Enacted | $26.2M |
Budget Details(R-2/P-40 facts)
| Project | FY24 Actuals | FY25 Total | FY26 Base | FY26 Request |
|---|---|---|---|---|
| Program Element | $0 | $26.2M | $0 | $0 |
No follow-the-dollar view — this program's awards haven't been crosswalked at high confidence (flows cover 17 of 1741 programs). why coverage is partial? →
Awards
No awards are linked to this program element at high confidence — the budget→award crosswalk only asserts links it can defend, and this line has none yet.
Lobbying Mentions
No Senate LDA lobbying filing in the tracked data mentions this program element by code or alias.
No research dossier for this program — dossiers cover 50 of 1741 programs, the largest fully J-book-detailed lines by FY2026 requested dollars. why no dossier here? →