PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

R902601879Valve,safety Relief

Bosch Rexroth Corporation Div Industrial Hydraulics · NSN 4820-01-386-6598 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-386-6598 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-386-6598. Primary manufacturer part number: R902601879.
Features
  • Valve,safety Relief — FSC 4820
  • Disk Loading Method: SPRING
  • Flow Control Device: POPPET
  • Valve Operation Method: AUTOMATIC
  • 3 verified cross-references
  • Primary manufacturer: Bosch Rexroth Corporation Div Industrial Hydraulics
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,safety Relief, cataloged under National Stock Number 4820-01-386-6598, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Bosch Rexroth Corporation Div Industrial Hydraulics. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-386-6598
Primary Part NumberR902601879
Item NameValve,safety Relief
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerBosch Rexroth Corporation Div Industrial Hydraulics
StatusACTIVE
Disk Loading MethodSPRING
Flow Control DevicePOPPET
Valve Operation MethodAUTOMATIC
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
7510-00-545-2850157646 INTERCHANGEABLE
Typing Element
Telemechanics Inc
5360-00-620-8278157646 INTERCHANGEABLE
Spring,helical Comp
Eaton Aerospace, Llc Dba Jackson South
5330-01-608-5898 INTERCHANGEABLE
Seal,plain
Cross-Reference Index
Part NumberManufacturer
R902601879 PRIMARY Bosch Rexroth Corporation Div Industrial Hydraulics (USA)
157646 Bosch Rexroth Corporation Div Industrial Hydraulics (USA)
157646 Rexroth Corp the Mobile Hydraulics Div (USA)
Related Parts
7510-00-545-2850INTERCHANGEABLE
TYPING ELEMENT
157646
5360-00-620-8278INTERCHANGEABLE
SPRING,HELICAL COMP
157646
5330-01-608-5898INTERCHANGEABLE
SEAL,PLAIN

Frequently Asked Questions

What is NSN 4820-01-386-6598?

NSN 4820-01-386-6598 is a Valve,safety Relief, manufactured by Bosch Rexroth Corporation Div Industrial Hydraulics, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-386-6598?

NSN 4820-01-386-6598 has 3 cross-referenced part numbers: R902601879 (Bosch Rexroth Corporation Div Industrial Hydraulics), 157646 (Bosch Rexroth Corporation Div Industrial Hydraulics), 157646 (Rexroth Corp the Mobile Hydraulics Div).

What NSN replaces 4820-01-386-6598?

There are 3 known substitutes for 4820-01-386-6598: 7510-00-545-2850, 5360-00-620-8278, 5330-01-608-5898. Verify interchangeability with system specifications before substitution.

What are the specifications of R902601879?

Key specifications for R902601879: Disk Loading Method: SPRING; Flow Control Device: POPPET; Valve Operation Method: AUTOMATIC. 3 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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