PartsTable TECHNICAL DATA SHEET
NSN 4220-01-644-5530Government record, cited

Knife, Diver's4220-01-644-5530

NSN 4220-01-644-5530 · NIIN 016445530 · Part number BLUNT TIP
Aqua Lung Co Ltd · FSC 4220 — Marine Lifesaving and Diving Equipment · FSG 42 — Fire Fighting, Rescue, and Safety Equipment · CAGE 4WFB9
Government record, cited
NSN 4220-01-644-5530 — this item is cataloged by the U.S. Government under National Stock Number 4220-01-644-5530. Manufacturer of record part number: BLUNT TIP.
Also searched as  4220-01-644-5530 · 4220016445530 · NIIN 016445530 · 01-644-5530 · FSC 4220 Marine Lifesaving and Diving Equipment · CAGE 4WFB9 · BLUNT TIP
Nearby stock numbers  ·
Features
  • Knife,diver's — FSC 4220
  • 1 manufacturer part number on file
  • Manufacturer of record: Aqua Lung Co Ltd
Identification
  • NSN: 4220-01-644-5530
  • NIIN: 016445530
  • FSC: 4220 — Marine Lifesaving and Diving Equipment
  • FSG: 42 — Fire Fighting, Rescue, and Safety Equipment
  • Primary part number: BLUNT TIP
  • Manufacturer: Aqua Lung Co Ltd
General Description

The Knife,diver's, cataloged under National Stock Number 4220-01-644-5530, 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 Aqua Lung Co Ltd. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4220-01-644-5530
Primary Part NumberBLUNT TIP
Item NameKnife,diver's
FSC / FSG4220 / 42 — Marine Lifesaving and Diving Equipment
ManufacturerAqua Lung Co Ltd
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
Cross-Reference Index
Part NumberManufacturer
BLUNT TIP PRIMARY Aqua Lung Co Ltd (USA)
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 4220-01-644-5530?

NSN 4220-01-644-5530 is a Knife,diver's, manufactured by Aqua Lung Co Ltd, classified under FSC 4220, Marine Lifesaving and Diving Equipment. Status: active.

What part numbers are listed for NSN 4220-01-644-5530?

NSN 4220-01-644-5530 has 1 manufacturer part number on file: BLUNT TIP (Aqua Lung Co Ltd).

What are the specifications of BLUNT TIP?

Key specifications for BLUNT TIP: Part Name Assigned by Controlling Agency: BLUNT TIP DIVER'S KNIFE. 0 specifications are documented in the U.S. Government catalog.

Is NSN 4220-01-644-5530 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.
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