PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

40186O-Ring

Bay Seal Company, Inc. Dba Bay Seal Co Inc Div Bay Seal Company · NSN 5331-01-315-5556 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-315-5556 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-315-5556. Primary manufacturer part number: 40186.
Features
  • O-Ring — FSC 5331
  • Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
  • Cross-Sectional Height: 0.125 INCHES NOMINAL IN
  • 2 verified cross-references
  • Primary manufacturer: Bay Seal Company, Inc. Dba Bay Seal Co Inc Div Bay Seal Company
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 5331-01-315-5556, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Bay Seal Company, Inc. Dba Bay Seal Co Inc Div Bay Seal Company. Government technical data includes 2 verified specifications, 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. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5331-01-315-5556
Primary Part Number40186
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerBay Seal Company, Inc. Dba Bay Seal Co Inc Div Bay Seal Company
StatusACTIVE
MaterialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
Cross-Sectional Height0.125 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
2805-00-267-4702 INTERCHANGEABLE
Engine,gasoline
5930-01-016-958740186 INTERCHANGEABLE
Switch,pressure
Hydra-Electric Company Dba Hydra-Electric Co
5950-01-174-446813084327 INTERCHANGEABLE
Transformer,power
Lockheed Martin Corporation
4940-01-264-565140186 INTERCHANGEABLE
Spiral Wrap
L & R Manufacturing Company
6515-01-451-1339401-86 INTERCHANGEABLE
Screw,bone
Depuy Synthes Sales Inc Dba Depuy Synthes Trauma Div Depuy Synthes Sales, Inc., D/b/a Depuy Synthes Trauma
5995-01-612-690042522 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Cables to Go
4510-01-701-11443902011 INTERCHANGEABLE
Water Aerator System
Aqua-Aerobic Systems Inc
Cross-Reference Index
Part NumberManufacturer
40186 Bay Seal Company, Inc. Dba Bay Seal Co Inc Div Bay Seal Company (USA)
704260-01 Remco Hydraulics Inc Sierra Cylinders Product Line (USA)
Related Parts
2805-00-267-4702INTERCHANGEABLE
ENGINE,GASOLINE
5930-01-016-9587INTERCHANGEABLE
SWITCH,PRESSURE
40186
5950-01-174-4468INTERCHANGEABLE
TRANSFORMER,POWER
13084327
4940-01-264-5651INTERCHANGEABLE
SPIRAL WRAP
40186
6515-01-451-1339INTERCHANGEABLE
SCREW,BONE
401-86
5995-01-612-6900INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
42522
4510-01-701-1144INTERCHANGEABLE
WATER AERATOR SYSTEM
3902011

Frequently Asked Questions

What is NSN 5331-01-315-5556?

NSN 5331-01-315-5556 is a O-Ring, manufactured by Bay Seal Company, Inc. Dba Bay Seal Co Inc Div Bay Seal Company, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-315-5556?

NSN 5331-01-315-5556 has 2 cross-referenced part numbers: 40186 (Bay Seal Company, Inc. Dba Bay Seal Co Inc Div Bay Seal Company), 704260-01 (Remco Hydraulics Inc Sierra Cylinders Product Line).

What NSN replaces 5331-01-315-5556?

There are 7 known substitutes for 5331-01-315-5556: 2805-00-267-4702, 5930-01-016-9587, 5950-01-174-4468 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 40186?

Key specifications for 40186: Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR; Cross-Sectional Height: 0.125 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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