PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

E8602J51MValve,safety Relief

Emerson Automation Solutions Final Control Us Lp Div Navy Product Team · NSN 4820-01-544-3921 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-544-3921 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-544-3921. Primary manufacturer part number: E8602J51M.
Features
  • Valve,safety Relief — FSC 4820
  • Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATION
  • Criticality Code Justification: ZZZY
  • 2 verified cross-references
  • Primary manufacturer: Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,safety Relief, cataloged under National Stock Number 4820-01-544-3921, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Emerson Automation Solutions Final Control Us Lp Div Navy Product Team. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-544-3921
Primary Part NumberE8602J51M
Item NameValve,safety Relief
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerEmerson Automation Solutions Final Control Us Lp Div Navy Product Team
StatusACTIVE
Reference Number Differentiating CharacteristicsMATERIAL WILL BE IN ACCORDANCE WITH NAVICP ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATION
Criticality Code JustificationZZZY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5950-00-147-1250 INTERCHANGEABLE
Reactor
5340-00-187-8175 INTERCHANGEABLE
Turnbuckle
4310-00-862-17262-3614 INTERCHANGEABLE
Hub Assembly
Pdi Ground Support Systems, Inc.
5950-00-943-0077T050-008-0001 INTERCHANGEABLE
Transformer,power
L3harris Interstate Electronics Corporation
6240-01-012-63598602 INTERCHANGEABLE
Lamp,incandescent
Chicago Miniature Lighting Llc Dba Chicago Miniature Optoelectron
5360-01-179-45948602 INTERCHANGEABLE
Spring,helical,compression
Cooper Interconnect, Inc. Dba Cooper Interconnect Div Interconnect
5365-01-180-25868602 INTERCHANGEABLE
Spacer,sleeve
Halsit Holdings Llc Div Halsit Holdings, Llc Dba Abbatron
4730-01-210-42500081120-010 INTERCHANGEABLE
Cap,pipe
Cleveland Service Center
5315-01-260-5538805-1400054 PIECE 8 AND 10 INTERCHANGEABLE
Pin
Naval Ship Systems Command
6625-01-284-1310 INTERCHANGEABLE
Voltmeter
Cross-Reference Index
Part NumberManufacturer
E8602J51M Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
8602 Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
Related Parts
5950-00-147-1250INTERCHANGEABLE
REACTOR
5340-00-187-8175INTERCHANGEABLE
TURNBUCKLE
4310-00-862-1726INTERCHANGEABLE
HUB ASSEMBLY
2-3614
5950-00-943-0077INTERCHANGEABLE
TRANSFORMER,POWER
T050-008-0001
6240-01-012-6359INTERCHANGEABLE
LAMP,INCANDESCENT
8602
5360-01-179-4594INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
8602
5365-01-180-2586INTERCHANGEABLE
SPACER,SLEEVE
8602
4730-01-210-4250INTERCHANGEABLE
CAP,PIPE
0081120-010
5315-01-260-5538INTERCHANGEABLE
PIN
805-1400054 PIECE 8 AND 10
6625-01-284-1310INTERCHANGEABLE
VOLTMETER
6145-01-313-6778INTERCHANGEABLE
CABLE,SPECIAL PURPOSE,ELECTRICAL
9767
4730-01-459-7433INTERCHANGEABLE
PLUG,PIPE
8602

Frequently Asked Questions

What is NSN 4820-01-544-3921?

NSN 4820-01-544-3921 is a Valve,safety Relief, manufactured by Emerson Automation Solutions Final Control Us Lp Div Navy Product Team, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-544-3921?

NSN 4820-01-544-3921 has 2 cross-referenced part numbers: E8602J51M (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), 8602 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team).

What NSN replaces 4820-01-544-3921?

There are 12 known substitutes for 4820-01-544-3921: 5950-00-147-1250, 5340-00-187-8175, 4310-00-862-1726 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of E8602J51M?

Key specifications for E8602J51M: Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATION; Criticality Code Justification: ZZZY. 2 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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