PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

0000-23O-Ring

Watts Automatic Control Valve Inc · NSN 5331-00-166-8689 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-00-166-8689 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-166-8689. Primary manufacturer part number: 0000-23.
Features
  • O-Ring — FSC 5331
  • Material: RUBBER SYNTHETIC
  • Cross-Sectional Height: 0.062 INCHES NOMINAL IN
  • 3 verified cross-references
  • Primary manufacturer: Watts Automatic Control Valve Inc
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Synthetic construction
General Description

The O-Ring, cataloged under National Stock Number 5331-00-166-8689, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Watts Automatic Control Valve Inc. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 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
NSN5331-00-166-8689
Primary Part Number0000-23
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerWatts Automatic Control Valve Inc
StatusACTIVE
MaterialRUBBER SYNTHETIC
Cross-Sectional Height0.062 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5840-00-332-1890000023 INTERCHANGEABLE
Gear and Shaft
Cone Drive Operations Inc
5905-00-333-113610000-23 INTERCHANGEABLE
Resistor,fixed,wire Wound
Avo Intl
5910-01-031-0447 INTERCHANGEABLE
Capacitor,fixed,mica Dielectric
5910-01-072-216210-00021-00 INTERCHANGEABLE
Capacitor,fixed,mica Dielectric
Compaq Federal Llc
5305-01-282-6148 INTERCHANGEABLE
Screw,cap,hexagon Head
6150-01-483-58881000023 INTERCHANGEABLE
Cable Assembly,power,electrical
Us Army Aviation and Missile Command
4240-01-485-63731000023 INTERCHANGEABLE
Belt,safety,industrial
D B Industries, Llc
5910-01-489-0432208-0001U10120 INTERCHANGEABLE
Capacitor,fixed,metallized,paper
Marathonnorco Aerospace, Inc. Dba Marathon Power Technologies Company
4140-01-513-4926A34124 INTERCHANGEABLE
Fan,centrifugal
Nidec-Torin Corp
5340-01-644-5454000023 INTERCHANGEABLE
Assembly,main Pcb
Infrascan Inc
Cross-Reference Index
Part NumberManufacturer
10000-23 Muesco Inc Dba Muesco Mallay Inc (USA)
10000-23 Watts Automatic Control Valve Inc (USA)
0000-23 PRIMARY Watts Automatic Control Valve Inc (USA)
Related Parts
5840-00-332-1890INTERCHANGEABLE
GEAR AND SHAFT
000023
5905-00-333-1136INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND
10000-23
5910-01-031-0447INTERCHANGEABLE
CAPACITOR,FIXED,MICA DIELECTRIC
5910-01-072-2162INTERCHANGEABLE
CAPACITOR,FIXED,MICA DIELECTRIC
10-00021-00
5305-01-282-6148INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
6150-01-483-5888INTERCHANGEABLE
CABLE ASSEMBLY,POWER,ELECTRICAL
1000023
4240-01-485-6373INTERCHANGEABLE
BELT,SAFETY,INDUSTRIAL
1000023
5910-01-489-0432INTERCHANGEABLE
CAPACITOR,FIXED,METALLIZED,PAPER
208-0001U10120
4140-01-513-4926INTERCHANGEABLE
FAN,CENTRIFUGAL
A34124
5340-01-644-5454INTERCHANGEABLE
ASSEMBLY,MAIN PCB
000023

Frequently Asked Questions

What is NSN 5331-00-166-8689?

NSN 5331-00-166-8689 is a O-Ring, manufactured by Watts Automatic Control Valve Inc, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-00-166-8689?

NSN 5331-00-166-8689 has 3 cross-referenced part numbers: 10000-23 (Muesco Inc Dba Muesco Mallay Inc), 10000-23 (Watts Automatic Control Valve Inc), 0000-23 (Watts Automatic Control Valve Inc).

What NSN replaces 5331-00-166-8689?

There are 10 known substitutes for 5331-00-166-8689: 5840-00-332-1890, 5905-00-333-1136, 5910-01-031-0447 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 0000-23?

Key specifications for 0000-23: Material: RUBBER SYNTHETIC; Cross-Sectional Height: 0.062 INCHES NOMINAL IN. 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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