PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

8BBreaker,flush Valve

Watts Regulator Company · NSN 4510-01-380-1690 · FSC 4510 · No Item Name Available
Verified by PartsTable
NSN 4510-01-380-1690 — this item is cataloged by the U.S. Government under National Stock Number 4510-01-380-1690. Primary manufacturer part number: 8B.
Features
  • Breaker,flush Valve — FSC 4510
  • General Characteristics Item Description: 3/4 IN. IN
  • 2 verified cross-references
  • Primary manufacturer: Watts Regulator Company
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Breaker,flush Valve, cataloged under National Stock Number 4510-01-380-1690, is classified within Federal Supply Class 4510 (No Item Name Available) of the Plumbing, Heating, and Waste Disposal group. The primary manufacturer of record is Watts Regulator Company. 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. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4510-01-380-1690
Primary Part Number8B
Item NameBreaker,flush Valve
FSC / FSG4510 / 45 — No Item Name Available
ManufacturerWatts Regulator Company
StatusACTIVE
General Characteristics Item Description3/4 IN. IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5975-00-092-50408B INTERCHANGEABLE
Hanger,cable
Ni Industries Inc Bowers Mfg Co Div
3020-00-146-4533107660PC181 INTERCHANGEABLE
Gear,miter
Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions
3110-00-156-1725 INTERCHANGEABLE
Bearing,ball,thrust
4010-00-171-4512 INTERCHANGEABLE
Chain,weldless
5315-00-184-3442 INTERCHANGEABLE
Pin,segments
6625-00-272-9885SCC142925 INTERCHANGEABLE
Shunt,instrument
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
6350-00-383-1187 INTERCHANGEABLE
Bell,electrical
6720-00-606-35348B INTERCHANGEABLE
Camera,still Picture
Rouages Sa
5325-01-500-9466G45-20 INTERCHANGEABLE
Ring,retaining
Glenair, Inc.
1680-01-538-84153U457-60S908B-00 INTERCHANGEABLE
Plug,armor Panel,aircraft
Point Blank Enterprises, Inc. Dba the Protective Group Div the Protective Group, a Point Blank Company
Cross-Reference Index
Part NumberManufacturer
8B PRIMARY Watts Regulator Company (USA)
G-4520 Sea-Tech Systems, Inc. Dba Sea Tech Systems (USA)
Related Parts
5975-00-092-5040INTERCHANGEABLE
HANGER,CABLE
8B
3020-00-146-4533INTERCHANGEABLE
GEAR,MITER
107660PC181
3110-00-156-1725INTERCHANGEABLE
BEARING,BALL,THRUST
4010-00-171-4512INTERCHANGEABLE
CHAIN,WELDLESS
5315-00-184-3442INTERCHANGEABLE
PIN,SEGMENTS
6625-00-272-9885INTERCHANGEABLE
SHUNT,INSTRUMENT
SCC142925
6350-00-383-1187INTERCHANGEABLE
BELL,ELECTRICAL
6720-00-606-3534INTERCHANGEABLE
CAMERA,STILL PICTURE
8B
5325-01-500-9466INTERCHANGEABLE
RING,RETAINING
G45-20
1680-01-538-8415INTERCHANGEABLE
PLUG,ARMOR PANEL,AIRCRAFT
3U457-60S908B-00

Frequently Asked Questions

What is NSN 4510-01-380-1690?

NSN 4510-01-380-1690 is a Breaker,flush Valve, manufactured by Watts Regulator Company, classified under FSC 4510 (No Item Name Available). Status: active.

What are the part numbers for NSN 4510-01-380-1690?

NSN 4510-01-380-1690 has 2 cross-referenced part numbers: 8B (Watts Regulator Company), G-4520 (Sea-Tech Systems, Inc. Dba Sea Tech Systems).

What NSN replaces 4510-01-380-1690?

There are 10 known substitutes for 4510-01-380-1690: 5975-00-092-5040, 3020-00-146-4533, 3110-00-156-1725 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 8B?

Key specifications for 8B: General Characteristics Item Description: 3/4 IN. 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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