Program · United States · U.S. Navy
Mk 54 Lightweight Torpedo
Lightweight anti-submarine torpedo launched from ships and aircraft.
Updated
ProductionU.S. Navy
Awarded
—
Across linked awards
Cost to the Government
| Measure | Amount | Source |
|---|---|---|
| Program totals · 2 | ||
| Lightweight torpedo annual RDT&E referenceR-1 PE0604610N Lightweight Torpedo Development. Annual appropriation, not lifetime development. FY2026 includes listed reconciliation spend-plan funds; FY2027 is requested funding. Shared scope; cannot be attributed solely to this product. | $102.159M / yrNominal $; source budget basis | FY2027 R-1: Research, Development, Test & Evaluation Department of Defense Comptroller · Apr 2026 · figure FY2027 total request · PB2027 |
| R&D program totalA lifetime program R&D total was not established. Development contracts and shared program budgets are not substituted for that total. | Not established | — |
| Unit costs · 1 | ||
| Mod 1 hardware kit / unitP-5 F5110 MK-54 MOD 1 kit line. Upgrade hardware, not a complete torpedo. Values shown in thousands in the source are preserved at that precision. | $1.152MNominal $ · source budget basis | FY2025 Navy weapons budget, line 3215 MK-54 modifications U.S. Navy · government budget document mirror · figure FY2025 request |
| Quantities · 2 | ||
| Requested Mod 1 hardware kitsKit quantity only; not complete new torpedoes or current inventory. | 51U.S. only; stated source scope | FY2025 Navy weapons budget, line 3215 MK-54 modifications U.S. Navy · government budget document mirror · figure FY2025 request |
| U.S. inventoryA current U.S. inventory was not established. Annual procurement, cumulative deliveries and production capacity are not a stockpile count. | Not established | — |
| Operating costs · 1 | ||
| Annual operations & supportA complete, system-specific annual operating and support cost was not established. Procurement, replacement rounds and contract support are different measures. | Not established | — |
Program totals · 2
- Lightweight torpedo annual RDT&E referenceR-1 PE0604610N Lightweight Torpedo Development. Annual appropriation, not lifetime development. FY2026 includes listed reconciliation spend-plan funds; FY2027 is requested funding. Shared scope; cannot be attributed solely to this product.FY2027 R-1: Research, Development, Test & Evaluation Department of Defense Comptroller · Apr 2026 · figure FY2027 total request · PB2027$102.159M / yrNominal $; source budget basis
- R&D program totalA lifetime program R&D total was not established. Development contracts and shared program budgets are not substituted for that total.Source not recordedNot established
Unit costs · 1
- Mod 1 hardware kit / unitP-5 F5110 MK-54 MOD 1 kit line. Upgrade hardware, not a complete torpedo. Values shown in thousands in the source are preserved at that precision.FY2025 Navy weapons budget, line 3215 MK-54 modifications U.S. Navy · government budget document mirror · figure FY2025 request$1.152MNominal $ · source budget basis
Quantities · 2
- Requested Mod 1 hardware kitsKit quantity only; not complete new torpedoes or current inventory.FY2025 Navy weapons budget, line 3215 MK-54 modifications U.S. Navy · government budget document mirror · figure FY2025 request51U.S. only; stated source scope
- U.S. inventoryA current U.S. inventory was not established. Annual procurement, cumulative deliveries and production capacity are not a stockpile count.Source not recordedNot established
Operating costs · 1
- Annual operations & supportA complete, system-specific annual operating and support cost was not established. Procurement, replacement rounds and contract support are different measures.Source not recordedNot established
Earlier observations · 6
Superseded estimates and prices, each in its original scope and dollar basis.
| Measure | Amount | Source |
|---|---|---|
| Program totals · 3 | ||
| Lightweight torpedo annual RDT&E reference1 | $92.266M / yrNominal $; source budget basis | FY2027 R-1: Research, Development, Test & Evaluation Department of Defense Comptroller · Apr 2026 · figure FY2025 actual · PB2027 |
| Lightweight torpedo annual RDT&E reference1 | $93.244M / yrNominal $; source budget basis | FY2027 R-1: Research, Development, Test & Evaluation Department of Defense Comptroller · Apr 2026 · figure FY2026 total enacted / spend plan · PB2027 |
| Lightweight torpedo annual RDT&E reference1 | $102.159M / yrNominal $; source budget basis | FY2027 R-1: Research, Development, Test & Evaluation Department of Defense Comptroller · Apr 2026 · figure FY2027 total request · PB2027 |
| Unit costs · 3 | ||
| Mod 1 hardware kit / unit2 | $1.123MNominal $ · source budget basis | FY2025 Navy weapons budget, line 3215 MK-54 modifications U.S. Navy · government budget document mirror · figure FY2023 · PB2025 |
| Mod 1 hardware kit / unit2 | $597,168Nominal $ · source budget basis | FY2025 Navy weapons budget, line 3215 MK-54 modifications U.S. Navy · government budget document mirror · figure FY2024 · PB2025 |
| Mod 1 hardware kit / unit2 | $1.152MNominal $ · source budget basis | FY2025 Navy weapons budget, line 3215 MK-54 modifications U.S. Navy · government budget document mirror · figure FY2025 request |
Program totals · 3
- Lightweight torpedo annual RDT&E reference1FY2027 R-1: Research, Development, Test & Evaluation Department of Defense Comptroller · Apr 2026 · figure FY2025 actual · PB2027$92.266M / yrNominal $; source budget basis
- Lightweight torpedo annual RDT&E reference1FY2027 R-1: Research, Development, Test & Evaluation Department of Defense Comptroller · Apr 2026 · figure FY2026 total enacted / spend plan · PB2027$93.244M / yrNominal $; source budget basis
- Lightweight torpedo annual RDT&E reference1FY2027 R-1: Research, Development, Test & Evaluation Department of Defense Comptroller · Apr 2026 · figure FY2027 total request · PB2027$102.159M / yrNominal $; source budget basis
Unit costs · 3
- Mod 1 hardware kit / unit2FY2025 Navy weapons budget, line 3215 MK-54 modifications U.S. Navy · government budget document mirror · figure FY2023 · PB2025$1.123MNominal $ · source budget basis
- Mod 1 hardware kit / unit2FY2025 Navy weapons budget, line 3215 MK-54 modifications U.S. Navy · government budget document mirror · figure FY2024 · PB2025$597,168Nominal $ · source budget basis
- Mod 1 hardware kit / unit2FY2025 Navy weapons budget, line 3215 MK-54 modifications U.S. Navy · government budget document mirror · figure FY2025 request$1.152MNominal $ · source budget basis
1R-1 PE0604610N Lightweight Torpedo Development. Annual appropriation, not lifetime development. FY2026 includes listed reconciliation spend-plan funds; FY2027 is requested funding. Shared scope; cannot be attributed solely to this product.
2P-5 F5110 MK-54 MOD 1 kit line. Upgrade hardware, not a complete torpedo. Values shown in thousands in the source are preserved at that precision.
Kit, torpedo and export package are different units
The headline is a Mod 1 modification kit. India’s proposed Mod 0 package includes complete torpedoes and associated equipment. Dividing its full value by 53 would not yield a directly comparable kit or bare-torpedo price.
FY2025 Navy weapons budget, line 3215 MK-54 modifications U.S. Navy · government budget document mirror · +1 more
Contracts & purchasing · 1
Ceilings, options and purchase agreements are not spending and are never added together. Obligations are under Contracts.
| Buyer → seller | Status | Value | Qty | Source |
|---|---|---|---|---|
| India → U.S. Foreign Military SalesDSCA estimated package for 53 Mod 0 all-up rounds and exercise, air-launch and support equipment. Approval is not a signed order or delivery. | Proposed sale · congressional notification | $175M | 53 | India proposed MK-54 MOD 0 sale, October 7, 2024, notification 24-101 Defense Security Cooperation Agency · figure Oct 7, 2024 |
International buyers · 1
| Country | Qty | Status | Source |
|---|---|---|---|
| IndiaMod 0 all-up rounds, separate from the U.S. Mod 1 kit budget. | 53 | Proposed sale · not verified delivery | India proposed MK-54 MOD 0 sale, October 7, 2024, notification 24-101 Defense Security Cooperation Agency · figure Oct 7, 2024 |
Open research: Current U.S. inventory and complete annual operating-and-support costs require additional public evidence. Buyer records are selected examples, not a complete global order book.
What the government budgets and pays for this program, from budget justification books, appropriations, acquisition reports and contract announcements. Each figure states its dollar basis. What contractors were obligated is under Contracts.