PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

F090591Valve,check

Rolls-Royce Marine North America Inc · NSN 4820-01-435-4652 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-435-4652 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-435-4652. Primary manufacturer part number: F090591.
Features
  • Valve,check — FSC 4820
  • 8 verified cross-references
  • Primary manufacturer: Rolls-Royce Marine North America Inc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,check, cataloged under National Stock Number 4820-01-435-4652, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Rolls-Royce Marine North America Inc. This item has 8 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameValve,check
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersRolls-Royce Marine North America Inc (CAGE 1TH76); Rolls-Royce Ab (CAGE SL231); Kamewa (CAGE S5824); Kamewa Usa Inc (CAGE 0YYU8)
Technical Specifications
ParameterValue
NSN4820-01-435-4652
Primary Part NumberF090591
Item NameValve,check
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerRolls-Royce Marine North America Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
6680-01-434-2650 INTERCHANGEABLE
Indicator,sight,liquid
6680-01-434-2651 INTERCHANGEABLE
Switch,liquid Level
2030-01-434-6830 INTERCHANGEABLE
Cap,breather
4820-01-434-8203 INTERCHANGEABLE
Valve,linear,directional Control
4820-01-434-8204 INTERCHANGEABLE
Valve,linear,directional Control
4820-01-434-8212 INTERCHANGEABLE
Valve,calibrated Flow
4330-01-435-1835 INTERCHANGEABLE
Power Pack,hydraulic
4820-01-435-4645 INTERCHANGEABLE
Cock,poppet Drain
4820-01-435-4649 INTERCHANGEABLE
Valve,shuttle
4820-01-435-4654994103/11 INTERCHANGEABLE
Valve,flow Control
Kongsberg Maritime Sweden Ab
Cross-Reference Index
Part NumberManufacturer
F090591 Rolls-Royce Marine North America Inc (USA)
KAP P090591 Rolls-Royce Marine North America Inc (USA)
994103/9 Rolls-Royce Ab (SWE)
994103 Kamewa (SWE)
KAP F090591 Rolls-Royce Marine North America Inc (USA)
994103/9 Rolls-Royce Marine North America Inc (USA)
994103/9 Kamewa (SWE)
994103A/9 Kamewa Usa Inc (USA)
Related Parts
6680-01-434-2650INTERCHANGEABLE
INDICATOR,SIGHT,LIQUID
6680-01-434-2651INTERCHANGEABLE
SWITCH,LIQUID LEVEL
2030-01-434-6830INTERCHANGEABLE
CAP,BREATHER
4820-01-434-8203INTERCHANGEABLE
VALVE,LINEAR,DIRECTIONAL CONTROL
4820-01-434-8204INTERCHANGEABLE
VALVE,LINEAR,DIRECTIONAL CONTROL
4820-01-434-8212INTERCHANGEABLE
VALVE,CALIBRATED FLOW
4330-01-435-1835INTERCHANGEABLE
POWER PACK,HYDRAULIC
4820-01-435-4645INTERCHANGEABLE
COCK,POPPET DRAIN
4820-01-435-4649INTERCHANGEABLE
VALVE,SHUTTLE
4820-01-435-4654INTERCHANGEABLE
VALVE,FLOW CONTROL
994103/11
4330-01-439-0118INTERCHANGEABLE
FILTER,FLUID
994103/19
5310-01-592-0085INTERCHANGEABLE
NUT,PLAIN,EXTENDED WASHER,HEXAGO
80250

Frequently Asked Questions

What is NSN 4820-01-435-4652?

NSN 4820-01-435-4652 is a Valve,check, manufactured by Rolls-Royce Marine North America Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-435-4652?

NSN 4820-01-435-4652 has 8 cross-referenced part numbers: F090591 (Rolls-Royce Marine North America Inc), KAP P090591 (Rolls-Royce Marine North America Inc), 994103/9 (Rolls-Royce Ab), 994103 (Kamewa), KAP F090591 (Rolls-Royce Marine North America Inc) and 3 more.

What NSN replaces 4820-01-435-4652?

There are 12 known substitutes for 4820-01-435-4652: 6680-01-434-2650, 6680-01-434-2651, 2030-01-434-6830 and 9 more. Verify interchangeability with system specifications before substitution.

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