PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

HT-1Tape,drysuit

Henderson Aquatics Inc · NSN 4220-01-258-3501 · FSC 4220 · No Item Name Available
Verified by PartsTable
NSN 4220-01-258-3501 — this item is cataloged by the U.S. Government under National Stock Number 4220-01-258-3501. Primary manufacturer part number: HT-1.
Features
  • Tape,drysuit — FSC 4220
  • 2 verified cross-references
  • Primary manufacturer: Henderson Aquatics Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Tape,drysuit, cataloged under National Stock Number 4220-01-258-3501, is classified within Federal Supply Class 4220 (No Item Name Available) of the Fire Fighting, Rescue, and Safety Equipment group. The primary manufacturer of record is Henderson Aquatics Inc. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameTape,drysuit
FSC / FSG4220 — No Item Name Available (FSG 42)
ManufacturersHenderson Aquatics Inc (CAGE 4R507); Mar-Vel International, Inc. Dba Mar-Vel Underwater Equip (CAGE 14819)
Technical Specifications
ParameterValue
NSN4220-01-258-3501
Primary Part NumberHT-1
Item NameTape,drysuit
FSC / FSG4220 / 42 — No Item Name Available
ManufacturerHenderson Aquatics Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
9540-00-188-4152 INTERCHANGEABLE
Beam,structural
5120-01-018-6732 INTERCHANGEABLE
Insertion Tool
5999-01-519-0367HT1 INTERCHANGEABLE
Heat Sink,electrical-Electronic
Boyd, a B Co Dba Boyd
3433-01-556-9727HTC-1 INTERCHANGEABLE
Tip,welding Torch
Sundance Art Glass
8305-01-623-0445HT-1 INTERCHANGEABLE
Cloth,woven Roving
Stern & Stern Industries Inc
4430-01-654-2688HT-1 INTERCHANGEABLE
Oven,thermal Drying,electric
Evenheat Kiln Inc
Cross-Reference Index
Part NumberManufacturer
HT-1 PRIMARY Henderson Aquatics Inc (USA)
HT-1 Mar-Vel International, Inc. Dba Mar-Vel Underwater Equip (USA)
Related Parts
9540-00-188-4152INTERCHANGEABLE
BEAM,STRUCTURAL
5120-01-018-6732INTERCHANGEABLE
INSERTION TOOL
5999-01-519-0367INTERCHANGEABLE
HEAT SINK,ELECTRICAL-ELECTRONIC
HT1
3433-01-556-9727INTERCHANGEABLE
TIP,WELDING TORCH
HTC-1
8305-01-623-0445INTERCHANGEABLE
CLOTH,WOVEN ROVING
HT-1
4430-01-654-2688INTERCHANGEABLE
OVEN,THERMAL DRYING,ELECTRIC
HT-1

Frequently Asked Questions

What is NSN 4220-01-258-3501?

NSN 4220-01-258-3501 is a Tape,drysuit, manufactured by Henderson Aquatics Inc, classified under FSC 4220 (No Item Name Available). Status: active.

What are the part numbers for NSN 4220-01-258-3501?

NSN 4220-01-258-3501 has 2 cross-referenced part numbers: HT-1 (Henderson Aquatics Inc), HT-1 (Mar-Vel International, Inc. Dba Mar-Vel Underwater Equip).

What NSN replaces 4220-01-258-3501?

There are 6 known substitutes for 4220-01-258-3501: 9540-00-188-4152, 5120-01-018-6732, 5999-01-519-0367 and 3 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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