The Converter,liquid Oxygen, cataloged under National Stock Number 3655-01-628-1034, is classified within Federal Supply Class 3655 (Gas Generating and Dispensing Systems, Fixed or Mobile) of the Special Industry Machinery group. The manufacturer of record is Essex Industries, Inc. Dba Essex Industries. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3655-01-628-1034 |
| Primary Part Number | 50C-0089-4 |
| Item Name | Converter,liquid Oxygen |
| FSC / FSG | 3655 / 36 — Gas Generating and Dispensing Systems, Fixed or Mobile |
| Manufacturer | Essex Industries, Inc. Dba Essex Industries |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 50C-0089-4 PRIMARY | Essex Industries, Inc. Dba Essex Industries (USA) |
| Reference | Meaning |
|---|---|
| 3655NCM141069 | 5/1 Secondary reference Defense Medical Standardization Board |
| 1134924 | 5/1 Secondary reference U.S. Government activity |
NSN 3655-01-628-1034 is a Converter,liquid Oxygen, manufactured by Essex Industries, Inc. Dba Essex Industries, classified under FSC 3655, Gas Generating and Dispensing Systems, Fixed or Mobile. Status: active.
NSN 3655-01-628-1034 has 1 manufacturer part number on file: 50C-0089-4 (Essex Industries, Inc. Dba Essex Industries).
Key specifications for 50C-0089-4: Overall Height: 6.500 INCHES NOMINAL IN; Overall Length: 17.500 INCHES NOMINAL IN; Overall Width: 7.500 INCHES NOMINAL IN; Special Features: BACKPACK MEDICAL OXYGEN SYSTEM (BMOS); LOW PRESSURE, PORTABLE LIQUID OXYGEN STORAGE AND GASEOUS DELIVERY SYSTEM; REQUIRES NO EXTERNAL POWER; USES 6 AA-BATTERIES FOR THE QUANTITY INDICATOR; RUGGED; USER FRIENDLY; BUILT IN FLOW CONTROL VALVE; NO EXTERNAL POWER REQUIRED; TESTED TO MIL-STD-810; MEETS MORE STRINGENT WATER INGRESS REQUIREMENTS OF IEC 60601-1, IPX4 RATING; ALUMINUM HOUSING TO ENCLOSE AND PROTECT THE CIRCUIT BOARD OF THE QUANTITY INDICATOR FOR WATER INGRESS; CAPACITY : 2 LITERS; FULL WEIGHT: 19 LBS; EMPTY WEIGHT: 14 LBS; TOTAL GASEOUS VOLUME: 1720 LITERS; SYSTEM INTERNAL PRESSURE: 45-65 PSIG; LOX DELIVERY/OUTLET PRESSURE: 50 +/- 5 PSIG; OXYGEN GAS DELIVERY RATE: 15 LPM; OPERATING TEMPERATURE: 32 TO 120 DEG F LBS. 0 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.