PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4546Plug,relief Valve

Husco International Inc · NSN 4820-00-482-3621 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-482-3621 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-482-3621. Primary manufacturer part number: 4546.
Features
  • Plug,relief Valve — FSC 4820
  • General Characteristics Item Description: STEEL,1.250 IN. DIA OF SHOULDER END,1.844 IN. O/A LG,0.339 IN. BORE,1.484 IN. DEEP,THD 0.500 IN. DEEP,3/8-24 UNF THD SIZE IN
  • 1 verified cross-reference
  • Primary manufacturer: Husco International Inc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Plug,relief Valve, cataloged under National Stock Number 4820-00-482-3621, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Husco International Inc. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-482-3621
Primary Part Number4546
Item NamePlug,relief Valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerHusco International Inc
StatusACTIVE
General Characteristics Item DescriptionSTEEL,1.250 IN. DIA OF SHOULDER END,1.844 IN. O/A LG,0.339 IN. BORE,1.484 IN. DEEP,THD 0.500 IN. DEEP,3/8-24 UNF THD SIZE IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5815-00-065-60544546 INTERCHANGEABLE
Selector Magnet Ass
Carey Manufacturing Co, Inc Dba Amatom Electronic Hardware Div Amatom Electronic Hardware
5905-00-078-6333 INTERCHANGEABLE
Resistor,fixed,wire Wound,induct
5935-00-660-5467SM-D-377388 GR5 INTERCHANGEABLE
Connector,plug,electrical
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5950-00-840-5400 INTERCHANGEABLE
Coil,radio Frequency
6240-00-866-4143 INTERCHANGEABLE
Lamp,incandescent
5935-00-990-0100413324-1 INTERCHANGEABLE
Connector,receptacle,electrical
Raytheon Company Dba Raytheon
5915-01-196-96144546 INTERCHANGEABLE
Filter,band Suppression
Teledyne Defense Electronics, Llc Dba Teledyne Microwave Solutions
4930-01-515-37269903-2931 INTERCHANGEABLE
Back Disc
Hannay Reels Inc
6130-01-519-38304546 INTERCHANGEABLE
Power Supply
Northwest Power, Inc. Dba Northwest Power Integrations Inc
5930-01-520-86614546 INTERCHANGEABLE
Switch,starter
Racing Products Group Inc Dba Longacre Racing Products Inc
Cross-Reference Index
Part NumberManufacturer
4546 PRIMARY Husco International Inc (USA)
Related Parts
5815-00-065-6054INTERCHANGEABLE
SELECTOR MAGNET ASS
4546
5905-00-078-6333INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND,INDUCT
5935-00-660-5467INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
SM-D-377388 GR5
5950-00-840-5400INTERCHANGEABLE
COIL,RADIO FREQUENCY
6240-00-866-4143INTERCHANGEABLE
LAMP,INCANDESCENT
5935-00-990-0100INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
413324-1
5915-01-196-9614INTERCHANGEABLE
FILTER,BAND SUPPRESSION
4546
4930-01-515-3726INTERCHANGEABLE
BACK DISC
9903-2931
6130-01-519-3830INTERCHANGEABLE
POWER SUPPLY
4546
5930-01-520-8661INTERCHANGEABLE
SWITCH,STARTER
4546

Frequently Asked Questions

What is NSN 4820-00-482-3621?

NSN 4820-00-482-3621 is a Plug,relief Valve, manufactured by Husco International Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-482-3621?

NSN 4820-00-482-3621 has 1 cross-referenced part number: 4546 (Husco International Inc).

What NSN replaces 4820-00-482-3621?

There are 10 known substitutes for 4820-00-482-3621: 5815-00-065-6054, 5905-00-078-6333, 5935-00-660-5467 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4546?

Key specifications for 4546: General Characteristics Item Description: STEEL,1.250 IN. DIA OF SHOULDER END,1.844 IN. O/A LG,0.339 IN. BORE,1.484 IN. DEEP,THD 0.500 IN. DEEP,3/8-24 UNF THD SIZE IN. 1 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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