Reference Number Differentiating Characteristics: CLEANING, PACKAGING AND MARKING IAW MIL-STD-1330D
Identification
NSN: 4220-01-421-2212
NIIN: 014212212
FSC: 4220 — Marine Lifesaving and Diving Equipment
FSG: 42 — Fire Fighting, Rescue, and Safety Equipment
General Description
The Regulator,breathing Gas Pressure, cataloged under National Stock Number 4220-01-421-2212, is classified within Federal Supply Class 4220 (Marine Lifesaving and Diving Equipment) of the Fire Fighting, Rescue, and Safety Equipment group. Government technical data includes 2 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
4220-01-421-2212
Item Name
Regulator,breathing Gas Pressure
FSC / FSG
4220 / 42 — Marine Lifesaving and Diving Equipment
Status
ACTIVE
Criticality Code Justification
ZZZY
Reference Number Differentiating Characteristics
CLEANING, PACKAGING AND MARKING IAW MIL-STD-1330D
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
Criticality Code
S
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
389-1459
3/1Design control — primary reference
Tescom Corp Dba Tescom Div Tescom
No interchangeability data on file.
Other items in FSC 4220 — Marine Lifesaving and Diving Equipment
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4220-00-004-8880
4220-00-004-8880 · Item name not on file
4220-00-009-2854
DIVING EQUIPMENT SET
4220-00-012-3571
INFLATION ASSEMBLY,LIFE JACKET
4220-00-014-0183
4220-00-014-0183 · Item name not on file
4220-00-014-2097
CARTRIDGE,COMPRESSED GAS
4220-00-021-4979
COVER,RAFT
4220-00-021-9688
LANYARD ASSEMBLY
4220-00-022-1014
4220-00-022-1014 · Item name not on file
Frequently Asked Questions
What is NSN 4220-01-421-2212?
NSN 4220-01-421-2212 is a Regulator,breathing Gas Pressure, classified under FSC 4220, Marine Lifesaving and Diving Equipment. Status: active.
What are the specifications of 4220-01-421-2212?
Key specifications for 4220-01-421-2212: Criticality Code Justification: ZZZY; Reference Number Differentiating Characteristics: CLEANING, PACKAGING AND MARKING IAW MIL-STD-1330D. 2 specifications are documented in the U.S. Government catalog.
Is NSN 4220-01-421-2212 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
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.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.