PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

11-249Thermal Bypass Valve

Actronics Incorporated Dba Actronics Inc · NSN 4820-00-295-8613 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-295-8613 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-295-8613. Primary manufacturer part number: 11-249.
Features
  • Thermal Bypass Valve — FSC 4820
  • General Characteristics Item Description: 4.000 IN. LG IN
  • 2 verified cross-references
  • Primary manufacturer: Actronics Incorporated Dba Actronics Inc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Thermal Bypass Valve, cataloged under National Stock Number 4820-00-295-8613, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Actronics Incorporated Dba Actronics Inc. Government technical data includes 1 verified specification, 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. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-295-8613
Primary Part Number11-249
Item NameThermal Bypass Valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerActronics Incorporated Dba Actronics Inc
StatusACTIVE
General Characteristics Item Description4.000 IN. LG IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5310-00-021-0544R002468 INTERCHANGEABLE
Nut,hub Bearing
Meritor Heavy Vehicle Systems, Llc
3110-00-156-4844177009-3 INTERCHANGEABLE
Bearing,ball,annular
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5920-00-284-5785 INTERCHANGEABLE
Arrester,electrical Surge
5136-00-729-5702 INTERCHANGEABLE
Tap,thread Cutting
5331-00-811-1338 INTERCHANGEABLE
O-Ring
3020-01-117-0913 INTERCHANGEABLE
Sprocket Wheel
5895-01-223-521211-249 INTERCHANGEABLE
Front End Module
Mte Corp
5365-01-229-8352D15-460 PIECE 118 INTERCHANGEABLE
Ring,water Seal
Northrop Grumman Systems Corporation Div Marine Systems
4820-01-619-807211249 INTERCHANGEABLE
Valve,shuttle
North American Controls Inc Dba North American Controls Inc
Cross-Reference Index
Part NumberManufacturer
11-249 PRIMARY Actronics Incorporated Dba Actronics Inc (USA)
11004-010 Ametek Thermal Systems Inc (USA)
Related Parts
5310-00-021-0544INTERCHANGEABLE
NUT,HUB BEARING
R002468
3110-00-156-4844INTERCHANGEABLE
BEARING,BALL,ANNULAR
177009-3
5920-00-284-5785INTERCHANGEABLE
ARRESTER,ELECTRICAL SURGE
5136-00-729-5702INTERCHANGEABLE
TAP,THREAD CUTTING
5331-00-811-1338INTERCHANGEABLE
O-RING
3020-01-117-0913INTERCHANGEABLE
SPROCKET WHEEL
5895-01-223-5212INTERCHANGEABLE
FRONT END MODULE
11-249
5365-01-229-8352INTERCHANGEABLE
RING,WATER SEAL
D15-460 PIECE 118
4820-01-619-8072INTERCHANGEABLE
VALVE,SHUTTLE
11249

Frequently Asked Questions

What is NSN 4820-00-295-8613?

NSN 4820-00-295-8613 is a Thermal Bypass Valve, manufactured by Actronics Incorporated Dba Actronics Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-295-8613?

NSN 4820-00-295-8613 has 2 cross-referenced part numbers: 11-249 (Actronics Incorporated Dba Actronics Inc), 11004-010 (Ametek Thermal Systems Inc).

What NSN replaces 4820-00-295-8613?

There are 9 known substitutes for 4820-00-295-8613: 5310-00-021-0544, 3110-00-156-4844, 5920-00-284-5785 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 11-249?

Key specifications for 11-249: General Characteristics Item Description: 4.000 IN. LG 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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