PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

225-20O-Ring

Kurt Manufacturing Company, Inc. Div Kurt Manufacturing Company · NSN 5331-01-647-7765 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-647-7765 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-647-7765. Primary manufacturer part number: 225-20.
Features
  • O-Ring — FSC 5331
  • 1 verified cross-reference
  • Primary manufacturer: Kurt Manufacturing Company, Inc. Div Kurt Manufacturing Company
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The O-Ring, cataloged under National Stock Number 5331-01-647-7765, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Kurt Manufacturing Company, Inc. Div Kurt Manufacturing Company. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5331-01-647-7765
Primary Part Number225-20
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerKurt Manufacturing Company, Inc. Div Kurt Manufacturing Company
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
6625-00-239-836522520 INTERCHANGEABLE
Voltmeter
Naval Ship Systems Command
3030-00-264-3073153 INTERCHANGEABLE
Belt,v
Muviq Usa, Llc
4720-00-288-9867 INTERCHANGEABLE
Hose,nonmetallic
5140-00-293-23792-3-525 INTERCHANGEABLE
Bag,tool
W1d1 Natick Soldier Center Dba Us Army Ccdc Soldier Center Div Combat Capabilities Development Command - Soldier Center
2910-00-794-109622520 INTERCHANGEABLE
Clamp Assembly
Arvinmeritor Inc
1005-01-128-54919348354 INTERCHANGEABLE
Trigger Assembly
Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate
Cross-Reference Index
Part NumberManufacturer
225-20 PRIMARY Kurt Manufacturing Company, Inc. Div Kurt Manufacturing Company (USA)
Related Parts
6625-00-239-8365INTERCHANGEABLE
VOLTMETER
22520
3030-00-264-3073INTERCHANGEABLE
BELT,V
153
4720-00-288-9867INTERCHANGEABLE
HOSE,NONMETALLIC
5140-00-293-2379INTERCHANGEABLE
BAG,TOOL
2-3-525
2910-00-794-1096INTERCHANGEABLE
CLAMP ASSEMBLY
22520
1005-01-128-5491INTERCHANGEABLE
TRIGGER ASSEMBLY
9348354

Frequently Asked Questions

What is NSN 5331-01-647-7765?

NSN 5331-01-647-7765 is a O-Ring, manufactured by Kurt Manufacturing Company, Inc. Div Kurt Manufacturing Company, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-647-7765?

NSN 5331-01-647-7765 has 1 cross-referenced part number: 225-20 (Kurt Manufacturing Company, Inc. Div Kurt Manufacturing Company).

What NSN replaces 5331-01-647-7765?

There are 6 known substitutes for 5331-01-647-7765: 6625-00-239-8365, 3030-00-264-3073, 4720-00-288-9867 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 225-20?

Key specifications for 225-20: End Item Identification: 3470-01-575-2955. 1 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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