PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3310-04Valve,safety Relief

Barker Rockford Co, the Dba Heco Div Div Heco Division · NSN 4820-00-563-6582 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-563-6582 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-563-6582. Primary manufacturer part number: 3310-04.
Features
  • Valve,safety Relief — FSC 4820
  • Furnished Items and Quantity: 2 HANDLE AND 2 GASKET
  • Thread Series Designator: UNS FIRST END
  • Style Designator: SAFETY RELIEF
  • Adjustable Pressure Range: +5.0 TO 30.0 POUNDS PER SQUARE INCH LBS
  • Connection Type: THREADED EXTERNAL BOSS FIRST END
  • Thread Class: 2A FIRST END A
  • Flow Control Device: STEM
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Rubber Seat construction
General Description

The Valve,safety Relief, cataloged under National Stock Number 4820-00-563-6582, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Barker Rockford Co, the Dba Heco Div Div Heco Division. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-563-6582
Primary Part Number3310-04
Item NameValve,safety Relief
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerBarker Rockford Co, the Dba Heco Div Div Heco Division
StatusACTIVE
Furnished Items and Quantity2 HANDLE AND 2 GASKET
Thread Series DesignatorUNS FIRST END
Style DesignatorSAFETY RELIEF
Adjustable Pressure Range+5.0 TO 30.0 POUNDS PER SQUARE INCH LBS
Connection TypeTHREADED EXTERNAL BOSS FIRST END
Thread Class2A FIRST END A
Flow Control DeviceSTEM
Thread DirectionRIGHT-HAND FIRST END
MaterialRUBBER SEAT
Connection StyleEXTERNAL SEAT FOR GASKET SEAL (BOSS) FIRST END
MaterialSTEEL BODY
Thread Quantity Per Inch14 FIRST END
Valve Operation MethodMANUAL
Mounting FacilityBULKHEAD
Nominal Thread Size1.000 INCHES FIRST END IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
6130-00-164-3610 INTERCHANGEABLE
Power Supply Subassembly
6515-00-335-590033-1004 INTERCHANGEABLE
Forceps,kidney Stone Removing
Sklar Corporation Dba Sklar Instruments
5935-00-773-142864845BX INTERCHANGEABLE
Cover,electrical Connector
Oshkosh Defense Llc
5965-01-024-7960 INTERCHANGEABLE
Headset,electrical
5305-01-250-2106331-004 INTERCHANGEABLE
Setscrew
Malabar
Cross-Reference Index
Part NumberManufacturer
3310-04 PRIMARY Barker Rockford Co, the Dba Heco Div Div Heco Division (USA)
1GXP2057-001 Danfoss Fluid Power Inc Easley Opn (USA)
Related Parts
6130-00-164-3610INTERCHANGEABLE
POWER SUPPLY SUBASSEMBLY
6515-00-335-5900INTERCHANGEABLE
FORCEPS,KIDNEY STONE REMOVING
33-1004
5935-00-773-1428INTERCHANGEABLE
COVER,ELECTRICAL CONNECTOR
64845BX
5965-01-024-7960INTERCHANGEABLE
HEADSET,ELECTRICAL
5305-01-250-2106INTERCHANGEABLE
SETSCREW
331-004

Frequently Asked Questions

What is NSN 4820-00-563-6582?

NSN 4820-00-563-6582 is a Valve,safety Relief, manufactured by Barker Rockford Co, the Dba Heco Div Div Heco Division, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-563-6582?

NSN 4820-00-563-6582 has 2 cross-referenced part numbers: 3310-04 (Barker Rockford Co, the Dba Heco Div Div Heco Division), 1GXP2057-001 (Danfoss Fluid Power Inc Easley Opn).

What NSN replaces 4820-00-563-6582?

There are 5 known substitutes for 4820-00-563-6582: 6130-00-164-3610, 6515-00-335-5900, 5935-00-773-1428 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3310-04?

Key specifications for 3310-04: Furnished Items and Quantity: 2 HANDLE AND 2 GASKET; Thread Series Designator: UNS FIRST END; Style Designator: SAFETY RELIEF; Adjustable Pressure Range: +5.0 TO 30.0 POUNDS PER SQUARE INCH LBS. 15 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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