The Flask,nitrogen Serv, cataloged under National Stock Number 4220-01-441-5222, is classified within Federal Supply Class 4220 (Marine Lifesaving and Diving Equipment) of the Fire Fighting, Rescue, and Safety Equipment group. The manufacturer of record is Pressed Steel Tank Co Inc. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4220-01-441-5222 |
| Primary Part Number | F12B7301 |
| Item Name | Flask,nitrogen Serv |
| FSC / FSG | 4220 / 42 — Marine Lifesaving and Diving Equipment |
| Manufacturer | Pressed Steel Tank Co Inc |
| Status | ACTIVE |
| General Characteristics Item Description | MATERIAL IS STEEL; O/A LENGTH 27.875 INCHES; O/A DIAMETER 7.25 INCHES IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| F1310611 PC1 | Pressed Steel Tank Co Inc (USA) |
| F12B7301 PRIMARY | Pressed Steel Tank Co Inc (USA) |
| Reference | Meaning |
|---|---|
| F1310611 | D/9 Drawing number reference only Pressed Steel Tank Co Inc |
| 516-5486433 F1 | 5/9 Secondary reference Naval Sea Systems Command |
| 5486433 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 4220-01-441-5222 is a Flask,nitrogen Serv, manufactured by Pressed Steel Tank Co Inc, classified under FSC 4220, Marine Lifesaving and Diving Equipment. Status: active.
NSN 4220-01-441-5222 has 2 manufacturer part numbers on file: F1310611 PC1 (Pressed Steel Tank Co Inc), F12B7301 (Pressed Steel Tank Co Inc).
Key specifications for F12B7301: General Characteristics Item Description: MATERIAL IS STEEL; O/A LENGTH 27.875 INCHES; O/A DIAMETER 7.25 INCHES IN; Part Name Assigned by Controlling Agency: STOCK CYLINDER; End Item Identification: DRY DECK SHELTER. 1 specification is documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). 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.