PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B-25O-Ring

Bay State Controls Corporation · NSN 5331-01-345-0052 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-345-0052 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-345-0052. Primary manufacturer part number: B-25.
Features
  • O-Ring — FSC 5331
  • Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
  • Cross-Sectional Height: 0.060 INCHES NOMINAL IN
  • 3 verified cross-references
  • Primary manufacturer: Bay State Controls Corporation
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Butadiene-Acrylonitrile Class Nbr construction
General Description

The O-Ring, cataloged under National Stock Number 5331-01-345-0052, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Bay State Controls Corporation. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5331-01-345-0052
Primary Part NumberB-25
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerBay State Controls Corporation
StatusCANCELLED
MaterialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
Cross-Sectional Height0.060 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
6920-00-063-5932A25 INTERCHANGEABLE
Target,bull's-Eye
National Target Company, Inc.
5905-00-100-429012Z13110-8017 INTERCHANGEABLE
Resistor,fixed,wire Wound
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
3110-00-100-8545 INTERCHANGEABLE
Bearing,ball,thrust
3030-00-160-8284A25 INTERCHANGEABLE
Belt,v
Contitech Usa, Inc Dba Veyance Technologies
5120-00-189-7915 INTERCHANGEABLE
Socket,socket Wrench
5910-00-195-0057 INTERCHANGEABLE
Capacitor,fixed,mica Dielectric
5310-00-202-1386A25 INTERCHANGEABLE
Washer,flat
Hobart Bros Co
4460-00-254-216960-512 INTERCHANGEABLE
Collector,dust
Associated Equipment Corporation Dba Associated Equipment Corp
5930-00-259-7971 INTERCHANGEABLE
Switch,thermostatic
5360-00-290-8917A25 INTERCHANGEABLE
Spring,helical,compression
Ashcroft Inc Dba Heise
Cross-Reference Index
Part NumberManufacturer
B-25 Bay State Controls Corporation (USA)
A-25 Bay State Controls Corporation (USA)
A/B33-25 Bay State Controls Corporation (USA)
Related Parts
6920-00-063-5932INTERCHANGEABLE
TARGET,BULL'S-EYE
A25
5905-00-100-4290INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND
12Z13110-8017
3110-00-100-8545INTERCHANGEABLE
BEARING,BALL,THRUST
3030-00-160-8284INTERCHANGEABLE
BELT,V
A25
5120-00-189-7915INTERCHANGEABLE
SOCKET,SOCKET WRENCH
5910-00-195-0057INTERCHANGEABLE
CAPACITOR,FIXED,MICA DIELECTRIC
5310-00-202-1386INTERCHANGEABLE
WASHER,FLAT
A25
4460-00-254-2169INTERCHANGEABLE
COLLECTOR,DUST
60-512
5930-00-259-7971INTERCHANGEABLE
SWITCH,THERMOSTATIC
5360-00-290-8917INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
A25
4330-00-307-8387INTERCHANGEABLE
FILTER ELEMENT,FLUID
A25
6680-00-394-7338INTERCHANGEABLE
EXTENSION ROD
B-25

Frequently Asked Questions

What is NSN 5331-01-345-0052?

NSN 5331-01-345-0052 is a O-Ring, manufactured by Bay State Controls Corporation, classified under FSC 5331 (O-Ring). Status: cancelled.

What are the part numbers for NSN 5331-01-345-0052?

NSN 5331-01-345-0052 has 3 cross-referenced part numbers: B-25 (Bay State Controls Corporation), A-25 (Bay State Controls Corporation), A/B33-25 (Bay State Controls Corporation).

What NSN replaces 5331-01-345-0052?

There are 12 known substitutes for 5331-01-345-0052: 6920-00-063-5932, 5905-00-100-4290, 3110-00-100-8545 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of B-25?

Key specifications for B-25: Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR; Cross-Sectional Height: 0.060 INCHES NOMINAL IN. 2 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5331-01-345-0052 still in active supply?

NSN 5331-01-345-0052 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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