PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20628O-Ring

Leslie Controls, Inc. Dba Leslie Controls Inc · NSN 5331-00-837-4378 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-00-837-4378 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-837-4378. Primary manufacturer part number: 20628.
Features
  • O-Ring — FSC 5331
  • Cross-Sectional Height: 0.125 INCHES NOMINAL IN
  • Material: RUBBER SYNTHETIC
  • 3 verified cross-references
  • Primary manufacturer: Leslie Controls, Inc. Dba Leslie Controls 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 5331-00-837-4378, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Leslie Controls, Inc. Dba Leslie Controls Inc. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, 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
NSN5331-00-837-4378
Primary Part Number20628
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerLeslie Controls, Inc. Dba Leslie Controls Inc
StatusACTIVE
Cross-Sectional Height0.125 INCHES NOMINAL IN
MaterialRUBBER SYNTHETIC
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
4730-00-353-918920628 INTERCHANGEABLE
Strainer Element,sediment
Cummins Inc.
3455-00-516-504519818 INTERCHANGEABLE
Reamer,machine
Brown & Sharpe, Inc. Div Precision Measuring Instruments, Tesa Usa
3020-00-708-329620628 INTERCHANGEABLE
Gear,sector
Ametek, Inc. Dba Aerospace Gst Div Aerospace
5330-01-243-5838 INTERCHANGEABLE
Packing,preformed
5310-01-259-8556 INTERCHANGEABLE
Nut,plain,cap
5305-01-443-8710 INTERCHANGEABLE
Screw,cap,hexagon Head
4730-01-517-1496C20628 INTERCHANGEABLE
Coupling,hose
Hydrasearch Company, Llc
6520-01-590-8660ISI-V80 INTERCHANGEABLE
Collector,dust
Integral Systems Inc Div Integral Systems, Inc.
Cross-Reference Index
Part NumberManufacturer
20628 Lineta Engineering Und Handelsgesell-Schaft Mbh (DEU)
20628 PRIMARY Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
15845NPC19 Maier Herman
Related Parts
4730-00-353-9189INTERCHANGEABLE
STRAINER ELEMENT,SEDIMENT
20628
3455-00-516-5045INTERCHANGEABLE
REAMER,MACHINE
19818
3020-00-708-3296INTERCHANGEABLE
GEAR,SECTOR
20628
5330-01-243-5838INTERCHANGEABLE
PACKING,PREFORMED
5310-01-259-8556INTERCHANGEABLE
NUT,PLAIN,CAP
5305-01-443-8710INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
4730-01-517-1496INTERCHANGEABLE
COUPLING,HOSE
C20628
6520-01-590-8660INTERCHANGEABLE
COLLECTOR,DUST
ISI-V80

Frequently Asked Questions

What is NSN 5331-00-837-4378?

NSN 5331-00-837-4378 is a O-Ring, manufactured by Leslie Controls, Inc. Dba Leslie Controls Inc, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-00-837-4378?

NSN 5331-00-837-4378 has 3 cross-referenced part numbers: 20628 (Lineta Engineering Und Handelsgesell-Schaft Mbh), 20628 (Leslie Controls, Inc. Dba Leslie Controls Inc), 15845NPC19 (Maier Herman).

What NSN replaces 5331-00-837-4378?

There are 8 known substitutes for 5331-00-837-4378: 4730-00-353-9189, 3455-00-516-5045, 3020-00-708-3296 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 20628?

Key specifications for 20628: Cross-Sectional Height: 0.125 INCHES NOMINAL IN; Material: RUBBER SYNTHETIC. 2 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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