PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

263370201-BO-Ring

Electric Boat Corporation Div General Dynamics Electric Boat · NSN 5331-01-548-4364 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-548-4364 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-548-4364. Primary manufacturer part number: 263370201-B.
Features
  • O-Ring — FSC 5331
  • Criticality Code Justification: ZZZW
  • Departure From Cited Document: CLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D
  • 10 verified cross-references
  • Primary manufacturer: Electric Boat Corporation Div General Dynamics Electric Boat
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The O-Ring, cataloged under National Stock Number 5331-01-548-4364, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Electric Boat Corporation Div General Dynamics Electric Boat. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5331-01-548-4364
Primary Part Number263370201-B
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerElectric Boat Corporation Div General Dynamics Electric Boat
StatusACTIVE
Criticality Code JustificationZZZW
Departure From Cited DocumentCLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5331-00-579-10701403088000 INTERCHANGEABLE
O-Ring
Mechanical Equipment Company, Inc. Dba Mechanical Equipment Co Inc
5331-01-160-4346M83461/1-330 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
Cross-Reference Index
Part NumberManufacturer
263370201-B Electric Boat Corporation Div General Dynamics Electric Boat (USA)
263370201-BCP Naval Inventory Control Point Mechanicsburg (USA)
MS28775-330 Sae International Dba Sae International (USA)
MS28775-330 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
G547-0002-263370201-BCP Naval Inventory Control Point Mechanicsburg (USA)
MS28775-330 Society of Automotive Engineers Inc (USA)
MS28775-330CP Naval Inventory Control Point Mechanicsburg (USA)
7550478-263370201-BCP Naval Inventory Control Point Mechanicsburg (USA)
G547-0002-263370201-B Electric Boat Corporation Div General Dynamics Electric Boat (USA)
7550478-263370201-B Naval Sea Systems Command (USA)
Related Parts
5331-00-579-1070INTERCHANGEABLE
O-RING
1403088000
5331-01-160-4346INTERCHANGEABLE
O-RING
M83461/1-330

Frequently Asked Questions

What is NSN 5331-01-548-4364?

NSN 5331-01-548-4364 is a O-Ring, manufactured by Electric Boat Corporation Div General Dynamics Electric Boat, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-548-4364?

NSN 5331-01-548-4364 has 10 cross-referenced part numbers: 263370201-B (Electric Boat Corporation Div General Dynamics Electric Boat), 263370201-BCP (Naval Inventory Control Point Mechanicsburg), MS28775-330 (Sae International Dba Sae International), MS28775-330 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), G547-0002-263370201-BCP (Naval Inventory Control Point Mechanicsburg) and 5 more.

What NSN replaces 5331-01-548-4364?

There are 2 known substitutes for 5331-01-548-4364: 5331-00-579-1070, 5331-01-160-4346. Verify interchangeability with system specifications before substitution.

What are the specifications of 263370201-B?

Key specifications for 263370201-B: Criticality Code Justification: ZZZW; Departure From Cited Document: CLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D; End Item Identification: SIGHT GLASS ASSEMBLY, 0.250 IPS.. 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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