PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

540-055Cover,demand Regula

Kirby Morgan Dive Systems Inc · NSN 4220-01-561-1015 · FSC 4220 · No Item Name Available
Verified by PartsTable
NSN 4220-01-561-1015 — this item is cataloged by the U.S. Government under National Stock Number 4220-01-561-1015. Primary manufacturer part number: 540-055.
Features
  • Cover,demand Regula — FSC 4220
  • 5 verified cross-references
  • Primary manufacturer: Kirby Morgan Dive Systems Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Cover,demand Regula, cataloged under National Stock Number 4220-01-561-1015, 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 Kirby Morgan Dive Systems Inc. This item has 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4220-01-561-1015
Primary Part Number540-055
Item NameCover,demand Regula
FSC / FSG4220 / 42 — No Item Name Available
ManufacturerKirby Morgan Dive Systems Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
2540-00-054-0055540055 INTERCHANGEABLE
Cross Chain,tire Si
U S Army Tank Automotive Command Amsta-Im-Mm
5950-00-980-7449 INTERCHANGEABLE
Coil,radio Frequency
Cross-Reference Index
Part NumberManufacturer
10336805 Nimikkeistokeskus Ncb Finland (FIN)
DE2811 Jfd Australia Pty Ltd James Fisher Australia Pty Ltd (AUS)
540-055 Polar Safety Oy (FIN)
540-055 PRIMARY Kirby Morgan Dive Systems Inc (USA)
4220PL1959954 Jednolity Indeks Materialowy - Uniform Material Index (POL)
Related Parts
2540-00-054-0055INTERCHANGEABLE
CROSS CHAIN,TIRE SI
540055
5950-00-980-7449INTERCHANGEABLE
COIL,RADIO FREQUENCY

Frequently Asked Questions

What is NSN 4220-01-561-1015?

NSN 4220-01-561-1015 is a Cover,demand Regula, manufactured by Kirby Morgan Dive Systems Inc, classified under FSC 4220 (No Item Name Available). Status: active.

What are the part numbers for NSN 4220-01-561-1015?

NSN 4220-01-561-1015 has 5 cross-referenced part numbers: 10336805 (Nimikkeistokeskus Ncb Finland), DE2811 (Jfd Australia Pty Ltd James Fisher Australia Pty Ltd), 540-055 (Polar Safety Oy), 540-055 (Kirby Morgan Dive Systems Inc), 4220PL1959954 (Jednolity Indeks Materialowy - Uniform Material Index).

What NSN replaces 4220-01-561-1015?

There are 2 known substitutes for 4220-01-561-1015: 2540-00-054-0055, 5950-00-980-7449. Verify interchangeability with system specifications before substitution.

What are the specifications of 540-055?

Key specifications for 540-055: End Item Identification: SUPERLITE-17 A/B HELMET A. 1 total characteristics are documented in the Federal Logistics Information System.

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