PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

147725O-Ring

Unison Industries Llc · NSN 5331-01-341-2875 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-341-2875 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-341-2875. Primary manufacturer part number: 147725.
Features
  • O-Ring — FSC 5331
  • 2 verified cross-references
  • Primary manufacturer: Unison Industries Llc
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The O-Ring, cataloged under National Stock Number 5331-01-341-2875, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Unison Industries Llc. This item has 2 commercial cross-references from 2 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)
ManufacturersUnison Industries, Llc Dba Unison Industries Inc (CAGE 83311); Unison Industries Llc (CAGE 59501)
Technical Specifications
ParameterValue
NSN5331-01-341-2875
Primary Part Number147725
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerUnison Industries Llc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5306-00-207-4747147725 INTERCHANGEABLE
Bolt,machine
Honeywell International Inc. Dba Honeywell Div Aerospace-South Bend (westmoor St)
5305-00-725-418716085 INTERCHANGEABLE
Screw,cap,hexagon Head
Hyster-Yale Group, Inc.
4240-01-010-0027147725 INTERCHANGEABLE
Sensor,oxygen
Viasys Respiratory Care Inc. Dba Biosys Healthcare
6605-01-233-7074147725 INTERCHANGEABLE
Sensor,oxygen
Electric Boat Corporation Div General Dynamics Electric Boat
Cross-Reference Index
Part NumberManufacturer
147725 Unison Industries, Llc Dba Unison Industries Inc (USA)
147725 PRIMARY Unison Industries Llc (USA)
Related Parts
5306-00-207-4747INTERCHANGEABLE
BOLT,MACHINE
147725
5305-00-725-4187INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
16085
4240-01-010-0027INTERCHANGEABLE
SENSOR,OXYGEN
147725
6605-01-233-7074INTERCHANGEABLE
SENSOR,OXYGEN
147725

Frequently Asked Questions

What is NSN 5331-01-341-2875?

NSN 5331-01-341-2875 is a O-Ring, manufactured by Unison Industries Llc, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-341-2875?

NSN 5331-01-341-2875 has 2 cross-referenced part numbers: 147725 (Unison Industries, Llc Dba Unison Industries Inc), 147725 (Unison Industries Llc).

What NSN replaces 5331-01-341-2875?

There are 4 known substitutes for 5331-01-341-2875: 5306-00-207-4747, 5305-00-725-4187, 4240-01-010-0027 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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