PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

7550478-PLC11401-011O-Ring

Naval Sea Systems Command · NSN 5331-01-542-6698 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-542-6698 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-542-6698. Primary manufacturer part number: 7550478-PLC11401-011.
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 5331-01-542-6698, 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 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5331-01-542-6698
Primary Part Number7550478-PLC11401-011
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerNaval Sea Systems Command
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5331-00-166-1068M83248/1-116 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
5331-00-166-1086AS3581-014 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
5331-00-235-5262 INTERCHANGEABLE
O-Ring
5331-00-831-6639AS568-014/AMS3218C INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
5331-01-267-9176000014EE INTERCHANGEABLE
O-Ring
Admiral Valve Llc Dba Cpv Manufacturing
Cross-Reference Index
Part NumberManufacturer
G547-0002-PLC11401-011 Electric Boat Corporation Div General Dynamics Electric Boat (USA)
7550478-PLC11401-011 PRIMARY Naval Sea Systems Command (USA)
PLC11401-011 Electric Boat Corporation Div General Dynamics Electric Boat (USA)
PLC-11401 PC 11 Electric Boat Corporation Div General Dynamics Electric Boat (USA)
M83248/2-014 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
000014EE Admiral Valve Llc Dba Cpv Manufacturing (USA)
Related Parts
5331-00-166-1068INTERCHANGEABLE
O-RING
M83248/1-116
5331-00-166-1086INTERCHANGEABLE
O-RING
AS3581-014
5331-00-235-5262INTERCHANGEABLE
O-RING
5331-00-831-6639INTERCHANGEABLE
O-RING
AS568-014/AMS3218C
5331-01-267-9176INTERCHANGEABLE
O-RING
000014EE

Frequently Asked Questions

What is NSN 5331-01-542-6698?

NSN 5331-01-542-6698 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 5331-01-542-6698?

NSN 5331-01-542-6698 has 6 cross-referenced part numbers: G547-0002-PLC11401-011 (Electric Boat Corporation Div General Dynamics Electric Boat), 7550478-PLC11401-011 (Naval Sea Systems Command), PLC11401-011 (Electric Boat Corporation Div General Dynamics Electric Boat), PLC-11401 PC 11 (Electric Boat Corporation Div General Dynamics Electric Boat), M83248/2-014 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 1 more.

What NSN replaces 5331-01-542-6698?

There are 5 known substitutes for 5331-01-542-6698: 5331-00-166-1068, 5331-00-166-1086, 5331-00-235-5262 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 7550478-PLC11401-011?

Key specifications for 7550478-PLC11401-011: End Item Identification: VALVE, GLOBE .25 IN; LIFE SUPPORT EQUIPMENT EBS MANIFOLD INSTALLATION IN; Part Name Assigned by Controlling Agency: ASSEMBLY, IN-LINE GAGE ROOT VALVES, .250 NPS (DRAWING). 2 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com