PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

726-8836526-F109O-Ring

Naval Sea Systems Command · NSN 5331-01-732-8677 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-732-8677 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-732-8677. Primary manufacturer part number: 726-8836526-F109.
Features
  • O-Ring — FSC 5331
  • 6 verified cross-references
  • Primary manufacturer: Naval Sea Systems Command
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The O-Ring, cataloged under National Stock Number 5331-01-732-8677, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Naval Sea Systems Command. This item has 6 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameO-Ring
FSC / FSG5331 — O-Ring (FSG 53)
ManufacturersNaval Sea Systems Command (CAGE 53711); Electric Boat Corporation Div General Dynamics Electric Boat (CAGE 96169); Naval Ship Systems Command (CAGE 80064)
Technical Specifications
ParameterValue
NSN5331-01-732-8677
Primary Part Number726-8836526-F109
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerNaval Sea Systems Command
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
4730-01-123-1655810-1385861TYPEGSIZE6IN INTERCHANGEABLE
Flange,pipe
Naval Sea Systems Command
4730-01-515-0176810-1385861TY P 2 1/2IN INTERCHANGEABLE
Flange,pipe
Naval Sea Systems Command
5331-01-732-8664726-8833625-F113 INTERCHANGEABLE
O-Ring
Naval Sea Systems Command
5331-01-732-9331726-8839296-F116 INTERCHANGEABLE
O-Ring
Naval Sea Systems Command
Cross-Reference Index
Part NumberManufacturer
8836526 Naval Sea Systems Command (USA)
726-8836526-F109 PRIMARY Naval Sea Systems Command (USA)
R8641701-F109 Electric Boat Corporation Div General Dynamics Electric Boat (USA)
LOA002985-F109 Electric Boat Corporation Div General Dynamics Electric Boat (USA)
1385861 Naval Ship Systems Command (USA)
218109435 Electric Boat Corporation Div General Dynamics Electric Boat (USA)
Related Parts
4730-01-123-1655INTERCHANGEABLE
FLANGE,PIPE
810-1385861TYPEGSIZE6IN
4730-01-515-0176INTERCHANGEABLE
FLANGE,PIPE
810-1385861TY P 2 1/2IN
5331-01-732-8664INTERCHANGEABLE
O-RING
726-8833625-F113
5331-01-732-9331INTERCHANGEABLE
O-RING
726-8839296-F116

Frequently Asked Questions

What is NSN 5331-01-732-8677?

NSN 5331-01-732-8677 is a O-Ring, manufactured by Naval Sea Systems Command, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-732-8677?

NSN 5331-01-732-8677 has 6 cross-referenced part numbers: 8836526 (Naval Sea Systems Command), 726-8836526-F109 (Naval Sea Systems Command), R8641701-F109 (Electric Boat Corporation Div General Dynamics Electric Boat), LOA002985-F109 (Electric Boat Corporation Div General Dynamics Electric Boat), 1385861 (Naval Ship Systems Command) and 1 more.

What NSN replaces 5331-01-732-8677?

There are 4 known substitutes for 5331-01-732-8677: 4730-01-123-1655, 4730-01-515-0176, 5331-01-732-8664 and 1 more. Verify interchangeability with system specifications before substitution.

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