PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2557/9O-Ring

Young & Cunningham America, Inc. · NSN 5331-01-304-2349 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-304-2349 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-304-2349. Primary manufacturer part number: 2557/9.
Features
  • O-Ring — FSC 5331
  • 4 verified cross-references
  • Primary manufacturer: Young & Cunningham America, Inc.
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The O-Ring, cataloged under National Stock Number 5331-01-304-2349, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Young & Cunningham America, Inc.. This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameO-Ring
FSC / FSG5331 — O-Ring (FSG 53)
ManufacturersYoung and Cunningham America Inc a Joint Venture (CAGE 0A0N9); Young & Cunningham America, Inc. (CAGE 08PB1)
Technical Specifications
ParameterValue
NSN5331-01-304-2349
Primary Part Number2557/9
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerYoung & Cunningham America, Inc.
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5330-00-361-29553067616 INTERCHANGEABLE
Gasket
Cummins Inc.
4320-00-763-5952 INTERCHANGEABLE
Shaft,pump
Cross-Reference Index
Part NumberManufacturer
2557/12 Young and Cunningham America Inc a Joint Venture (USA)
2557/9 PRIMARY Young & Cunningham America, Inc. (USA)
2557/12 Young & Cunningham America, Inc. (USA)
2557/9 Young and Cunningham America Inc a Joint Venture (USA)
Related Parts
5330-00-361-2955INTERCHANGEABLE
GASKET
3067616
4320-00-763-5952INTERCHANGEABLE
SHAFT,PUMP

Frequently Asked Questions

What is NSN 5331-01-304-2349?

NSN 5331-01-304-2349 is a O-Ring, manufactured by Young & Cunningham America, Inc., classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-304-2349?

NSN 5331-01-304-2349 has 4 cross-referenced part numbers: 2557/12 (Young and Cunningham America Inc a Joint Venture), 2557/9 (Young & Cunningham America, Inc.), 2557/12 (Young & Cunningham America, Inc.), 2557/9 (Young and Cunningham America Inc a Joint Venture).

What NSN replaces 5331-01-304-2349?

There are 2 known substitutes for 5331-01-304-2349: 5330-00-361-2955, 4320-00-763-5952. Verify interchangeability with system specifications before substitution.

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