PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

18-87DValve Assembly

Kirby Morgan Dive Systems Inc · NSN 4820-01-169-4524 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-169-4524 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-169-4524. Primary manufacturer part number: 18-87D.
Features
  • Valve Assembly — FSC 4820
  • 13 verified cross-references
  • Primary manufacturer: Kirby Morgan Dive Systems Inc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve Assembly, cataloged under National Stock Number 4820-01-169-4524, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Kirby Morgan Dive Systems Inc. This item has 13 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameValve Assembly
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersKirby Morgan Dive Systems Inc (CAGE 58366); Ministry of Defence, De&s Underwater and Electronic Warfare Pt (uew Ipt) (CAGE KCTY1); Ministry of Defence, De&s Underwater and Electronic Warfare Pt (uew Ipt) (CAGE K1806); Honeywell Aerospace Yeovil Div Aerospace -Yeovil (CAGE U1605); Msi-Defence Systems Ltd (CAGE U7384)
Technical Specifications
ParameterValue
NSN4820-01-169-4524
Primary Part Number18-87D
Item NameValve Assembly
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerKirby Morgan Dive Systems Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
2010-00-082-0915N100439PC19 INTERCHANGEABLE
Coupling,output Sha
Control Flow, Inc. Dba Control Flow Inc
3455-00-240-731813220 INTERCHANGEABLE
Cutter,milling,angle
Niagara Cutter Inc
2915-00-303-00491887A INTERCHANGEABLE
Lever Assembly,fuel
Parker-Hannifin Corporation Dba Pneutronics
5950-00-409-21929-1887-2 INTERCHANGEABLE
Coil,electrical
Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc
5950-00-421-08669-1887-1 INTERCHANGEABLE
Coil,electrical
Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc
Cross-Reference Index
Part NumberManufacturer
18-87D Kirby Morgan Dive Systems Inc (USA)
555-150 Kirby Morgan Dive Systems Inc (USA)
DP5527 Ministry of Defence, De&s Underwater and Electronic Warfare Pt (uew Ipt) (GBR)
18-87G Kirby Morgan Dive Systems Inc (USA)
18-87B Kirby Morgan Dive Systems Inc (USA)
DP5527 Ministry of Defence, De&s Underwater and Electronic Warfare Pt (uew Ipt) (GBR)
18-87A Kirby Morgan Dive Systems Inc (USA)
9147Y073 Honeywell Aerospace Yeovil Div Aerospace -Yeovil (GBR)
18-87F Kirby Morgan Dive Systems Inc (USA)
D9021 Msi-Defence Systems Ltd (GBR)
18-87E Kirby Morgan Dive Systems Inc (USA)
18-87C Kirby Morgan Dive Systems Inc (USA)
DHXA S0125 Submarine Manu & Prod Ltd (GBR)
Related Parts
2010-00-082-0915INTERCHANGEABLE
COUPLING,OUTPUT SHA
N100439PC19
3455-00-240-7318INTERCHANGEABLE
CUTTER,MILLING,ANGLE
13220
2915-00-303-0049INTERCHANGEABLE
LEVER ASSEMBLY,FUEL
1887A
5950-00-409-2192INTERCHANGEABLE
COIL,ELECTRICAL
9-1887-2
5950-00-421-0866INTERCHANGEABLE
COIL,ELECTRICAL
9-1887-1

Frequently Asked Questions

What is NSN 4820-01-169-4524?

NSN 4820-01-169-4524 is a Valve Assembly, manufactured by Kirby Morgan Dive Systems Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-169-4524?

NSN 4820-01-169-4524 has 13 cross-referenced part numbers: 18-87D (Kirby Morgan Dive Systems Inc), 555-150 (Kirby Morgan Dive Systems Inc), DP5527 (Ministry of Defence, De&s Underwater and Electronic Warfare Pt (uew Ipt)), 18-87G (Kirby Morgan Dive Systems Inc), 18-87B (Kirby Morgan Dive Systems Inc) and 8 more.

What NSN replaces 4820-01-169-4524?

There are 5 known substitutes for 4820-01-169-4524: 2010-00-082-0915, 3455-00-240-7318, 2915-00-303-0049 and 2 more. Verify interchangeability with system specifications before substitution.

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