PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

R04B4-5.0NSValve,linear,directional Control

Sterling Hydraulics Inc · NSN 4820-01-518-2500 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-518-2500 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-518-2500. Primary manufacturer part number: R04B4-5.0NS.
Features
  • Valve,linear,directional Control — FSC 4820
  • End Connection Quantity: 2
  • Thread Series Designator: UNF
  • Connection Type: THREADED EXTERNAL BOSS
  • Operating Pressure and Type: 6000.0 POUNDS PER SQUARE INCH (PSI) LUBRICATING OIL DIESTER BASE MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS
  • Maximum Operating Temp and Media for Which Designed: 210.0 FAHRENHEIT OIL, LUBRICATING, DIESTER BASE DEGF
  • Flow Pattern Quantity: 3
  • Nominal Thread Size: 0.875 INCHES IN
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,linear,directional Control, cataloged under National Stock Number 4820-01-518-2500, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Sterling Hydraulics Inc. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-518-2500
Primary Part NumberR04B4-5.0NS
Item NameValve,linear,directional Control
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerSterling Hydraulics Inc
StatusACTIVE
End Connection Quantity2
Thread Series DesignatorUNF
Connection TypeTHREADED EXTERNAL BOSS
Operating Pressure and Type6000.0 POUNDS PER SQUARE INCH (PSI) LUBRICATING OIL DIESTER BASE MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS
Maximum Operating Temp and Media for Which Designed210.0 FAHRENHEIT OIL, LUBRICATING, DIESTER BASE DEGF
Flow Pattern Quantity3
Nominal Thread Size0.875 INCHES IN
Spool Quantity1
Valve Discharge Flow Rate12.0 GALLONS PER MINUTE
Thread Quantity Per Inch14
Valve Operation MethodAUTOMATIC
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
5325-00-043-39575074-1 INTERCHANGEABLE
Ring,retaining
Transdigm Inc
1650-00-083-1287CS-1650-SV-0711 INTERCHANGEABLE
Parts Kit,pump
Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings)
5815-00-234-4856 INTERCHANGEABLE
Bar,selector,teletypewriter
3455-00-266-9451 INTERCHANGEABLE
File,rotary
2530-00-737-7783201271 INTERCHANGEABLE
Diaphragm,chamber,brake
Bendix Commercial Vehicle Systems Llc Dba Bendix Commercial Vehicle Systems
4010-00-889-668310106011 INTERCHANGEABLE
Wire Rope Assembly,single Leg
Us Army Aviation and Missile Command
1440-01-084-763550741 INTERCHANGEABLE
Housing,switch
Ducommun Labarge Technologies, Inc Dba Ducommun Labarge Technologies, Inc
4940-01-117-905930990 INTERCHANGEABLE
Skimmer
Gardner Denver Water Jetting Systems, Inc. Div Engineered Package Group
4820-01-518-247550741 AND B/M50741 INTERCHANGEABLE
Valve Assembly,manifold
Allied Systems Company Dba Allied Systems Co
4820-01-518-2495A02B2HZN INTERCHANGEABLE
Valve,safety Relief
Sterling Hydraulics Inc
Cross-Reference Index
Part NumberManufacturer
40011331 Baes Gcs Terrier Ssc 3 Project (GBR)
245795 Allied Systems Company Dba Allied Systems Co (USA)
B/M 50741 ITEM 9 Allied Systems Company Dba Allied Systems Co (USA)
50741 Allied Systems Company Dba Allied Systems Co (USA)
R04B4-5.0NS PRIMARY Sterling Hydraulics Inc (USA)
Related Parts
5325-00-043-3957INTERCHANGEABLE
RING,RETAINING
5074-1
1650-00-083-1287INTERCHANGEABLE
PARTS KIT,PUMP
CS-1650-SV-0711
5815-00-234-4856INTERCHANGEABLE
BAR,SELECTOR,TELETYPEWRITER
3455-00-266-9451INTERCHANGEABLE
FILE,ROTARY
2530-00-737-7783INTERCHANGEABLE
DIAPHRAGM,CHAMBER,BRAKE
201271
4010-00-889-6683INTERCHANGEABLE
WIRE ROPE ASSEMBLY,SINGLE LEG
10106011
1440-01-084-7635INTERCHANGEABLE
HOUSING,SWITCH
50741
4940-01-117-9059INTERCHANGEABLE
SKIMMER
30990
4820-01-518-2475INTERCHANGEABLE
VALVE ASSEMBLY,MANIFOLD
50741 AND B/M50741
4820-01-518-2495INTERCHANGEABLE
VALVE,SAFETY RELIEF
A02B2HZN
4820-01-518-6598INTERCHANGEABLE
VALVE,CHECK
D02B2-0.2N

Frequently Asked Questions

What is NSN 4820-01-518-2500?

NSN 4820-01-518-2500 is a Valve,linear,directional Control, manufactured by Sterling Hydraulics Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-518-2500?

NSN 4820-01-518-2500 has 5 cross-referenced part numbers: 40011331 (Baes Gcs Terrier Ssc 3 Project), 245795 (Allied Systems Company Dba Allied Systems Co), B/M 50741 ITEM 9 (Allied Systems Company Dba Allied Systems Co), 50741 (Allied Systems Company Dba Allied Systems Co), R04B4-5.0NS (Sterling Hydraulics Inc).

What NSN replaces 4820-01-518-2500?

There are 11 known substitutes for 4820-01-518-2500: 5325-00-043-3957, 1650-00-083-1287, 5815-00-234-4856 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of R04B4-5.0NS?

Key specifications for R04B4-5.0NS: End Item Identification: 4820-01-518-2475 8 VALVE MANIFOLD ASSEMBLY; End Connection Quantity: 2; Thread Series Designator: UNF; Connection Type: THREADED EXTERNAL BOSS. 13 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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