Aviation Breathing Systems · Survival Egress Air
Aqualung SEA — The Proven Standard in Military Aviation Emergency Breathing
Proven. Fielded. Supported.
Aqualung SEA brings fielded military aviation emergency-breathing experience to overwater and underwater-egress operations.
ESP is an Aqualung Military & Professional U.S. partner authorized for SEA and PHODS.
For pilots, aircrew & professional operators
Mission Fit
When rotorcraft or maritime aviation operations include ditching risk, aircrew and passengers may need a compact compressed-air emergency source to support underwater egress.
Per Aqualung Military & Professional public product information.
Buying for yourself, a small crew kit, or a professional aviation role? ESP supports Aqualung SEA configuration help, price and availability checks, and sustainment conversations for military, law-enforcement, public-safety, search-and-rescue, and professional aircrew users who specify Survival Egress Air.
Note: Buying or inquiring about SEA does not equal operational authorization. Final configuration, training, and fielding follow your unit, agency, or operator approvals.
Survival Egress Air
Choose Your SEA Configuration
ESP most often discusses SEA 3000 LV2 for U.S. fleet and sustainment conversations. Other SEA configurations may apply — confirm against current OEM datasheets for the configuration you need.
SEA 3000 LV2 · lead configuration
SEA 3000 LV2 is documented in the Aqualung Military & Professional SEA 3000 LV2 data sheet (Rev. 3). OEM web listings, availability, and pricing change; confirm current availability and configuration with ESP or the OEM before ordering. NSNs are listed in the Technical Reference.
Other SEA configurations
Aqualung MEER 4500 LW
- Pressure
- 300 BAR (4500 psi)
- Cylinder
- COPV
For most Survival Egress Air / compressed-air egress needs, start with SEA 3000 LV2. When the mission profile calls for a higher-capability CA-EBS architecture—lighter form factor, 300 BAR (4500 psi) COPV cylinder, and the OEM’s most compact CA-EBS framing—see Aqualung MEER 4500 LW. Select by mission and configuration.
Representative
How SEA Is Carried
SEA is commonly carried on or with an aviation survival vest.
Vest & EBS integration guide
How a vest is configured around an emergency breathing system.
Read the integration guideEBS Pouch & vest-adjacent pouches
Shop vest-adjacent pouches, such as an EBS Pouch, via the ESP store when priced.
Visit the ESP storeConfigure the full kit
YOUR VEST. YOUR EBS. YOUR MISSION.
Getting a vest and emergency breathing system (EBS) fit right is a configuration problem, not a catalog guess.
- Your EBS
Aqualung SEA
Survival Egress Air configurations.
View Configurations - Your vest
Survival Vests
SONIC G3 Light, Extraction, or Rappel; aviation survival vests and ALSE integration.
View SONIC G3 - EBS carriage
EBS Pouch & accessories
Pouch for aviation EBS bottles. Accessories are sold separately.
Shop EBS Pouch - Your mission
Service
Inspection, maintenance, and overhaul for fielded SEA and other aviation emergency breathing systems.
Request Service - Unit / Fleet
Unit & Fleet
Quote package keyed to aircraft, quantity, and need-by.
Request Unit or Fleet PricingGovernment Buyers
Each step is its own product or service page. Pouches and accessories sold separately; nothing here is included with SEA unless its page says so.
Inspection · Overhaul · Training · Fill
Service & Sustainment
ESP supports the SEA family with systems, components, inspection, overhaul, training, fill equipment, configuration support, and long-term fleet sustainment for military fleets and for law-enforcement, public-safety, and SAR aviation programs that specify Survival Egress Air. Selecting SEA 3000 LV2 (or another SEA configuration) is only the start of program readiness.
Oxygen / Breathing System Training
Ground Support Equipment · Fill Stations & GSE
ESP supports inspection, overhaul, training, and fill-equipment conversations for SEA within approved service scope. Ask in your inquiry if you need training, fill, or sustainment support. SEA / EBS Maintenance & Overhaul
Specs · Datasheets · Standards
Technical Reference
What’s included / what to confirm
Configuration packages vary by cylinder, hose, and regulator options. Use the datasheet and an ESP inquiry to confirm what ships with the configuration you need.
SEA 3000 LV2 — public product information
- Standard hose lengths: 20 and 27 inches. Other hose lengths exist as non-standard options.
- Cylinder options listed on the public product page: 1.5 ft³, 2.0 ft³, and 2.0 ft³ 43/P.
- Marine grade brass 1st stage body · Aluminium cylinder · 3000 psi · DOT cylinder available in two sizes (1.5 and 2.0)
OEM datasheet highlights
SEA 3000 LV2 Data Sheet, Rev. 3, 05 JULY 2023 — confirm current revision before solicitation-grade quotes.
| Attribute | Public listing |
|---|---|
| System weight | 800 g / 1.8 lb (1.5 ft³); 880 g / 1.9 lb (2.0 ft³) |
| Cylinder length with regulator | 25 cm / 10 in (1.5 ft³); 31 cm / 12 in (2.0 ft³) |
| Cylinder | 1.5 ft³ or 2.0 ft³ aluminum |
| Rated cylinder pressure | 207 bar / 3000 psi |
| Standard MP hose length | 51 cm / 20 in · 69 cm / 27 in (other hose lengths exist as non-standard options) |
| Depth rating | 6 meters / 20 feet (confirm current OEM revision before program-specific use) |
| Additional datasheet features | Color-coded dial indicator for remaining air supply; valve on/off visual indicator; 360° first-stage swivel; second stage with flexible rubber hose; left/right-hand neutral second stage; mouthpiece adjusts to six positions |
Verified configurations & NSNs (OEM datasheet)
Source: Aqualung Military & Professional SEA 3000 LV2 Data Sheet, Rev. 3, 05 JULY 2023. NSNs shown only where listed on that datasheet. Verified LV2 configuration and NSN rows are retained here; ESP does not infer additional NSNs.
| Description | PN | Hose | NSN |
|---|---|---|---|
| SEA 3000 LV2 1.5 (SRU 42/P) | 108445 | 20 in | 4240-01-542-8156 |
| SEA 3000 LV2 2.0 | 108400 | 20 in | 4220-01-629-9823 |
| SEA 3000 LV2 2.0 | 108410 | 27 in | 4220-01-695-3699 |
| SEA 3000 LV2 2.0 (SRU 43/P) | 108420 | 27 in | 4220-01-562-4738 |
| SEA 3000 First Stage Service Kit | 108343 | — | 4220-01-542-8151 |
| SEA 3000 Second Stage Service Kit | 108344 | — | 4220-01-543-8222 |
Configurations listed on the datasheet without an NSN are available by PN only until an NSN is confirmed from OEM or government catalog records.
SEA family reference (OEM public listings)
| Configuration | Pressure | Architecture |
|---|---|---|
| SEA 3000 LV2 | 3000 psi / ~207 bar | Aluminum DOT cylinder |
| SEA LW | 232 BAR | Aluminium; CE Certified BS EN 4856:2018; marine grade brass 1st stage body. |
| MEER 4500 LW | 300 BAR (4500 psi) | COPV cylinder; lightweight aluminium 1st stage; lightest and most compact framing per public MEER LW listing |
OEM technician-course materials publicly list SEA variants including LV2, MK, and LW among serviceable configurations—which indicates these are recognized OEM service families. Confirm support status with the OEM.
System class: air vs. oxygen
| System class | Representative | Breathing gas | Mission |
|---|---|---|---|
| Survival Egress Air / Emergency Breathing System (EBS) | SEA 3000 LV2 (lead), SEA LW, SEA MK, Aqualung MEER 4500 LW | Compressed air | Underwater egress after ditching / maritime emergency egress |
| Supplemental aviation oxygen | Aqualung PHODS M2 | Oxygen | Man-mounted supplemental O₂ at altitude — not egress air |
Related: Aqualung MEER 4500 LW · Aqualung PHODS M2 · ABS overview: Aviation Breathing Systems · Vest / ALSE integration · U.S. ALSE manufacturing
Technical note — approvals, catalog history & OEM support
This page helps ALSE managers and aircrew support teams, and procurement stakeholders. Final configuration selection, fielding decisions, and any agency or airworthiness approvals remain with the responsible program office and applicable authority. OEM product availability is not the same as agency configuration approval.
Keep these three layers separate in every customer conversation:
- Historical cataloging — older part numbers, superseded manuals, or retired marketing names that may appear in fleet inventories or legacy RFPs. Catalog history alone does not prove production or approval.
- OEM support — configurations Aqualung Military & Professional documents and supports (including SEA 3000 LV2). An OEM listing is not automatic U.S. agency approval, and OEM availability and pricing vary.
- Agency / airworthiness approval — configuration control, TSO, NSN authorization, or service-specific airworthiness acceptance. Confirm against the OEM datasheet and your agency’s configuration approval before solicitation or fielding.
ESP helps identify fielded assets and map them to supportable OEM configurations—without equating inventory presence to approval status.
Sustainment note: Supportability discussion for mixed fleets that include both OEM-documented configurations (e.g., SEA 3000 LV2, SEA LW, SEA MK) and older inventory items requiring identification first.
NSN / Government ID
PN 108445 — SEA 3000 LV2 1.5 (SRU 42/P). Full PN / NSN rows are in the Technical Reference above.
Government & Fleet Procurement
- CAGE 46LW2 · UEI LRZJTTUU8QL3
- HQ: 355 S Andy Griffith Parkway, Mount Airy, NC 27030
- Quality system: ISO 9001:2015 and AS9100D (current)
- Aqualung Military & Professional U.S. partner language