PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

43104O-Ring

Alfa Laval Inc · NSN 5331-01-562-2866 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-562-2866 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-562-2866. Primary manufacturer part number: 43104.
Features
  • O-Ring — FSC 5331
  • Material: RUBBER SYNTHETIC
  • 2 verified cross-references
  • Primary manufacturer: Alfa Laval Inc
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Synthetic construction
General Description

The O-Ring, cataloged under National Stock Number 5331-01-562-2866, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Alfa Laval Inc. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5331-01-562-2866
Primary Part Number43104
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerAlfa Laval Inc
StatusACTIVE
MaterialRUBBER SYNTHETIC
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
2915-00-344-402443104 INTERCHANGEABLE
Parts Kit,valve,dep
Meggitt North Hollywood Inc
5305-00-723-51744310 INTERCHANGEABLE
Screw,shoulder
Roller Bearing Co of America, Inc Div Pic Design
5950-00-952-061543104 INTERCHANGEABLE
Transformer,audio Frequency
L3harris Technologies, Inc. Div Space and Airborne Systems
5999-01-047-177601-0211-1085 INTERCHANGEABLE
Shielding Gasket,electronic
Parker-Hannifin Corporation Dba Pneutronics Div Chomerics Division
5962-01-110-1607 INTERCHANGEABLE
Microcircuit
5950-01-138-969377C718012P004 INTERCHANGEABLE
Transformer,radio Frequency
Lockheed Martin Corporation Div Rms
6515-01-368-287543-104 INTERCHANGEABLE
Guide,automated Biopsy System
Boston Scientific Corp Medi-Tech Div
5330-01-375-312643104 INTERCHANGEABLE
Retainer,packing
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
Cross-Reference Index
Part NumberManufacturer
579222-80 REF 17 Alfa Laval Inc (USA)
43104 PRIMARY Alfa Laval Inc (USA)
Related Parts
2915-00-344-4024INTERCHANGEABLE
PARTS KIT,VALVE,DEP
43104
5305-00-723-5174INTERCHANGEABLE
SCREW,SHOULDER
4310
5950-00-952-0615INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
43104
5999-01-047-1776INTERCHANGEABLE
SHIELDING GASKET,ELECTRONIC
01-0211-1085
5962-01-110-1607INTERCHANGEABLE
MICROCIRCUIT
5950-01-138-9693INTERCHANGEABLE
TRANSFORMER,RADIO FREQUENCY
77C718012P004
6515-01-368-2875INTERCHANGEABLE
GUIDE,AUTOMATED BIOPSY SYSTEM
43-104
5330-01-375-3126INTERCHANGEABLE
RETAINER,PACKING
43104

Frequently Asked Questions

What is NSN 5331-01-562-2866?

NSN 5331-01-562-2866 is a O-Ring, manufactured by Alfa Laval Inc, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-562-2866?

NSN 5331-01-562-2866 has 2 cross-referenced part numbers: 579222-80 REF 17 (Alfa Laval Inc), 43104 (Alfa Laval Inc).

What NSN replaces 5331-01-562-2866?

There are 8 known substitutes for 5331-01-562-2866: 2915-00-344-4024, 5305-00-723-5174, 5950-00-952-0615 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 43104?

Key specifications for 43104: End Item Identification: FUEL OIL PURIFIER,PRODUCT NO. 881207-04-01/0; Special Features: SPARE PARTS CATALOG N285 2.1 DRIVING DEVICE VERTICAL PAGES 24 AND 25; Part Name Assigned by Controlling Agency: TOP BEARING HOUSING AND BEARING SEAT O-RING; Material: RUBBER SYNTHETIC. 4 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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