PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

43358O-Ring

Bourns Inc · NSN 5331-01-300-2570 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-300-2570 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-300-2570. Primary manufacturer part number: 43358.
Features
  • O-Ring — FSC 5331
  • 3 verified cross-references
  • Primary manufacturer: Bourns Inc
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The O-Ring, cataloged under National Stock Number 5331-01-300-2570, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Bourns Inc. This item has 3 commercial cross-references from 3 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)
ManufacturersSlce Watermakers (CAGE F9758); Cat Pumps Corp (CAGE 57783); Bourns Inc (CAGE 32997)
Technical Specifications
ParameterValue
NSN5331-01-300-2570
Primary Part Number43358
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerBourns Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
6210-00-260-7503 INTERCHANGEABLE
Light,indicator
5950-00-578-1340996067 INTERCHANGEABLE
Transformer,power
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
4810-01-373-093743358 INTERCHANGEABLE
Piston,valve
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
5130-01-644-096243358 INTERCHANGEABLE
Press,electric Cable,power-Actua
Emerson Electric Co Ridgid/kollman Div
Cross-Reference Index
Part NumberManufacturer
711033-163 Slce Watermakers (FRA)
43358 Cat Pumps Corp (USA)
43358 PRIMARY Bourns Inc (USA)
Related Parts
6210-00-260-7503INTERCHANGEABLE
LIGHT,INDICATOR
5950-00-578-1340INTERCHANGEABLE
TRANSFORMER,POWER
996067
4810-01-373-0937INTERCHANGEABLE
PISTON,VALVE
43358
5130-01-644-0962INTERCHANGEABLE
PRESS,ELECTRIC CABLE,POWER-ACTUA
43358

Frequently Asked Questions

What is NSN 5331-01-300-2570?

NSN 5331-01-300-2570 is a O-Ring, manufactured by Bourns Inc, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-300-2570?

NSN 5331-01-300-2570 has 3 cross-referenced part numbers: 711033-163 (Slce Watermakers), 43358 (Cat Pumps Corp), 43358 (Bourns Inc).

What NSN replaces 5331-01-300-2570?

There are 4 known substitutes for 5331-01-300-2570: 6210-00-260-7503, 5950-00-578-1340, 4810-01-373-0937 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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