Program · United States · U.S. Navy
Mk 48 Heavyweight Torpedo
Heavyweight acoustic-homing torpedo for submarine warfare.
Updated
ProductionU.S. Navy
Cost to the Government
| Measure | Variant | Amount | Source |
|---|---|---|---|
| Program totals · 4 | |||
| Mod 7 guidance/control sectionP-5 per-section recurring cost, rounded to thousands; incomplete torpedo. | All | $2.043MNominal $; source budget basis | FY2025 Navy weapons budget, line 3117 MK-48 torpedo U.S. Navy · government budget document mirror · figure FY2025 request |
| Mod 7 afterbody / tail-cone sectionSeparate recurring section; excludes other hardware, integration and support. | All | $1.123MNominal $; source budget basis | FY2025 Navy weapons budget, line 3117 MK-48 torpedo U.S. Navy · government budget document mirror · figure FY2025 request |
| Installation funding · prior-year hardwareSupports 115 AUR installations from earlier procurements. The 115 installations are not the 79 new requested torpedoes. | All | $15.755MNominal $; source budget basis | FY2025 Navy weapons budget, line 3117 MK-48 torpedo U.S. Navy · government budget document mirror · figure FY2025 request |
| R&D program totalA lifetime program R&D total was not established. Development contracts and shared program budgets are not substituted for that total. | All | Not established | — |
| Unit costs · 1 | |||
| Gross procurement / torpedoPublished P-40 gross unit cost rounded to thousands. Includes program work and installations from previous buys; not a complete recurring new-build hardware quote. | Navy | $4.217MNominal $ · source budget basis | FY2025 Navy weapons budget, line 3117 MK-48 torpedo U.S. Navy · government budget document mirror · figure FY2025 request |
| Quantities · 2 | |||
| Requested torpedoesBudget procurement quantity, not deliveries or current inventory. | Navy | 79U.S. only; stated source scope | FY2025 Navy weapons budget, line 3117 MK-48 torpedo 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. | All | 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. | All | Not established | — |
Program totals · 4
- Mod 7 guidance/control sectionP-5 per-section recurring cost, rounded to thousands; incomplete torpedo.FY2025 Navy weapons budget, line 3117 MK-48 torpedo U.S. Navy · government budget document mirror · figure FY2025 request$2.043MNominal $; source budget basis
- Mod 7 afterbody / tail-cone sectionSeparate recurring section; excludes other hardware, integration and support.FY2025 Navy weapons budget, line 3117 MK-48 torpedo U.S. Navy · government budget document mirror · figure FY2025 request$1.123MNominal $; source budget basis
- Installation funding · prior-year hardwareSupports 115 AUR installations from earlier procurements. The 115 installations are not the 79 new requested torpedoes.FY2025 Navy weapons budget, line 3117 MK-48 torpedo U.S. Navy · government budget document mirror · figure FY2025 request$15.755MNominal $; 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
- Gross procurement / torpedoPublished P-40 gross unit cost rounded to thousands. Includes program work and installations from previous buys; not a complete recurring new-build hardware quote.NavyFY2025 Navy weapons budget, line 3117 MK-48 torpedo U.S. Navy · government budget document mirror · figure FY2025 request$4.217MNominal $ · source budget basis
Quantities · 2
- Requested torpedoesBudget procurement quantity, not deliveries or current inventory.NavyFY2025 Navy weapons budget, line 3117 MK-48 torpedo U.S. Navy · government budget document mirror · figure FY2025 request79U.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 · 3
Superseded estimates and prices, each in its original scope and dollar basis.
| Measure | Amount | Source |
|---|---|---|
| Gross procurement / torpedo1 | $5.397MNominal $ · source budget basis | FY2025 Navy weapons budget, line 3117 MK-48 torpedo U.S. Navy · government budget document mirror · figure FY2023 · PB2025 |
| Gross procurement / torpedo1 | $3.955MNominal $ · source budget basis | FY2025 Navy weapons budget, line 3117 MK-48 torpedo U.S. Navy · government budget document mirror · figure FY2024 · PB2025 |
| Gross procurement / torpedo1 | $4.217MNominal $ · source budget basis | FY2025 Navy weapons budget, line 3117 MK-48 torpedo U.S. Navy · government budget document mirror · figure FY2025 request |
- Gross procurement / torpedo1FY2025 Navy weapons budget, line 3117 MK-48 torpedo U.S. Navy · government budget document mirror · figure FY2023 · PB2025$5.397MNominal $ · source budget basis
- Gross procurement / torpedo1FY2025 Navy weapons budget, line 3117 MK-48 torpedo U.S. Navy · government budget document mirror · figure FY2024 · PB2025$3.955MNominal $ · source budget basis
- Gross procurement / torpedo1FY2025 Navy weapons budget, line 3117 MK-48 torpedo U.S. Navy · government budget document mirror · figure FY2025 request$4.217MNominal $ · source budget basis
1Published P-40 gross unit cost rounded to thousands. Includes program work and installations from previous buys; not a complete recurring new-build hardware quote.
An installation count is not a new production count
The Navy budget funds assembly of previously bought sections alongside new section procurement. The gross procurement average retains that mixed scope, while individual hardware sections are shown separately.
FY2025 Navy weapons budget, line 3117 MK-48 torpedo U.S. Navy · government budget document mirror
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 |
|---|---|---|---|---|
| Australia → United States governmentAustralian-dollar agreement for additional Mk 48 torpedoes, acquired as sections for local assembly and testing. Quantity not disclosed. | Government-to-government agreement announced | AUD 200M | — | Australia announces A$200M torpedo agreement, March 21, 2025 Australian Department of Defence · figure Mar 21, 2025 |
International buyers · 1
| Country | Qty | Status | Source |
|---|---|---|---|
| AustraliaA$200M agreement and joint development/sustainment relationship; no inferred order quantity. | Not verified | Additional procurement agreement | Australia announces A$200M torpedo agreement, March 21, 2025 Australian Department of Defence · figure Mar 21, 2025 |
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.
Contracts$68.0M obligated since FY2008
Contractors2
- Lockheed Martin$53.0M 78%
- Northrop Grumman$15.0M 22%
Obligations are signed USAspending prime-contract actions coded to this program, FY2008 to date, credited to the company that received each action. Obligations are money committed, not company revenue.