PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

BACP11L345O-Ring

The Boeing Company Div Defense · NSN 5331-00-850-0486 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-00-850-0486 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-850-0486. Primary manufacturer part number: BACP11L345.
Features
  • O-Ring — FSC 5331
  • Cross-Sectional Height: 0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN
  • Material: PLASTIC POLYPROPYLENE
  • Center Hole Diameter: 3.960 INCHES MINIMUM AND 3.990 INCHES MAXIMUM IN
  • 7 verified cross-references
  • Primary manufacturer: The Boeing Company Div Defense
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Plastic Polypropylene construction
General Description

The O-Ring, cataloged under National Stock Number 5331-00-850-0486, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is The Boeing Company Div Defense. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5331-00-850-0486
Primary Part NumberBACP11L345
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerThe Boeing Company Div Defense
StatusACTIVE
Cross-Sectional Height0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN
MaterialPLASTIC POLYPROPYLENE
Center Hole Diameter3.960 INCHES MINIMUM AND 3.990 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5977-00-441-819011345 INTERCHANGEABLE
Brush,electrical Contact
Safran Power Usa Llc
3940-00-618-3727 INTERCHANGEABLE
Sling,multiple Leg
5110-00-658-8101 INTERCHANGEABLE
Cutting Wheel,glass
5325-00-725-26952186 INTERCHANGEABLE
Grommet,nonmetallic
Halsit Holdings Llc Div Halsit Holdings, Llc Dba Abbatron
4710-00-787-6550309-5 INTERCHANGEABLE
Tube Assembly,metal
Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
5330-00-828-8440 INTERCHANGEABLE
Gasket
5977-00-935-699311345 INTERCHANGEABLE
Brush,electrical Contact
Parker Hannifin Corp Dba Pneutronics
5930-00-984-976311-0345-20 INTERCHANGEABLE
Switch,thermostatic
Scotsman Industries Inc Div Scotsman Ice Systems
5330-01-299-7325011345B INTERCHANGEABLE
Packing,preformed
Bourns Inc
5940-01-314-809331679 INTERCHANGEABLE
Terminal,lug
Te Connectivity Corporation
Cross-Reference Index
Part NumberManufacturer
2345 Dodge-Wasmund Manufacturing Inc (USA)
TF-BACP11L345 Trelleborg Sealing Solutions El Segundo, Inc. Dba Tss El Segundo (USA)
TF-BACP11L345 Trelleborg Sealing Solutions Us, Inc. (USA)
11-345 Coronado Manufacturing, Inc. (USA)
APR-568-345 Furon Co Ohio Div (USA)
BACP11L-345 Graphline Inc (USA)
BACP11L345 PRIMARY The Boeing Company Div Defense (USA)
Related Parts
5977-00-441-8190INTERCHANGEABLE
BRUSH,ELECTRICAL CONTACT
11345
3940-00-618-3727INTERCHANGEABLE
SLING,MULTIPLE LEG
5110-00-658-8101INTERCHANGEABLE
CUTTING WHEEL,GLASS
5325-00-725-2695INTERCHANGEABLE
GROMMET,NONMETALLIC
2186
4710-00-787-6550INTERCHANGEABLE
TUBE ASSEMBLY,METAL
309-5
5330-00-828-8440INTERCHANGEABLE
GASKET
5977-00-935-6993INTERCHANGEABLE
BRUSH,ELECTRICAL CONTACT
11345
5930-00-984-9763INTERCHANGEABLE
SWITCH,THERMOSTATIC
11-0345-20
5330-01-299-7325INTERCHANGEABLE
PACKING,PREFORMED
011345B
5940-01-314-8093INTERCHANGEABLE
TERMINAL,LUG
31679
4820-01-389-4212INTERCHANGEABLE
VALVE,REGULATING,SYSTEM PRESSURE
11345
6520-01-594-7021INTERCHANGEABLE
FILE,PULP CANAL,DENTAL

Frequently Asked Questions

What is NSN 5331-00-850-0486?

NSN 5331-00-850-0486 is a O-Ring, manufactured by The Boeing Company Div Defense, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-00-850-0486?

NSN 5331-00-850-0486 has 7 cross-referenced part numbers: 2345 (Dodge-Wasmund Manufacturing Inc), TF-BACP11L345 (Trelleborg Sealing Solutions El Segundo, Inc. Dba Tss El Segundo), TF-BACP11L345 (Trelleborg Sealing Solutions Us, Inc.), 11-345 (Coronado Manufacturing, Inc.), APR-568-345 (Furon Co Ohio Div) and 2 more.

What NSN replaces 5331-00-850-0486?

There are 12 known substitutes for 5331-00-850-0486: 5977-00-441-8190, 3940-00-618-3727, 5110-00-658-8101 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of BACP11L345?

Key specifications for BACP11L345: Cross-Sectional Height: 0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN; Material: PLASTIC POLYPROPYLENE; Center Hole Diameter: 3.960 INCHES MINIMUM AND 3.990 INCHES MAXIMUM IN. 3 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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