PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20487O-Ring

Rubbercraft Corporation of California, Ltd. Dba Rubbercraft Corp · NSN 5331-01-058-4025 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-058-4025 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-058-4025. Primary manufacturer part number: 20487.
Features
  • O-Ring — FSC 5331
  • Material: RUBBER SYNTHETIC
  • Center Hole Diameter: 0.639 INCHES MINIMUM AND 0.649 INCHES MAXIMUM IN
  • Cross-Sectional Height: 0.084 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN
  • 1 verified cross-reference
  • Primary manufacturer: Rubbercraft Corporation of California, Ltd. Dba Rubbercraft Corp
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 5331-01-058-4025, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Rubbercraft Corporation of California, Ltd. Dba Rubbercraft Corp. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5331-01-058-4025
Primary Part Number20487
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerRubbercraft Corporation of California, Ltd. Dba Rubbercraft Corp
StatusACTIVE
MaterialRUBBER SYNTHETIC
Center Hole Diameter0.639 INCHES MINIMUM AND 0.649 INCHES MAXIMUM IN
Cross-Sectional Height0.084 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
7690-00-083-575720487 INTERCHANGEABLE
Decal
Northrop Grumman Systems Corporation Dba Aerospace Systems Div Aeronautics Systems
5935-00-199-2635 INTERCHANGEABLE
Connector,plug,electrical
3120-01-025-715020487 INTERCHANGEABLE
Bearing,sleeve
Eaton Corporation Dba Airframe Div Fuel & Motion Control Systems
3020-01-315-410620487-1 INTERCHANGEABLE
Pulley,groove
United States Department of the Navy Dba Naval Surface Warfare Center Panama City
5310-01-499-356920487 INTERCHANGEABLE
Nut,self-Locking,hexagon
Itw Gse Inc.
4820-01-522-060920487 INTERCHANGEABLE
Piston,valve
Leslie Controls, Inc. Dba Leslie Controls Inc
Cross-Reference Index
Part NumberManufacturer
20487 PRIMARY Rubbercraft Corporation of California, Ltd. Dba Rubbercraft Corp (USA)
Related Parts
7690-00-083-5757INTERCHANGEABLE
DECAL
20487
5935-00-199-2635INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
3120-01-025-7150INTERCHANGEABLE
BEARING,SLEEVE
20487
3020-01-315-4106INTERCHANGEABLE
PULLEY,GROOVE
20487-1
5310-01-499-3569INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
20487
4820-01-522-0609INTERCHANGEABLE
PISTON,VALVE
20487

Frequently Asked Questions

What is NSN 5331-01-058-4025?

NSN 5331-01-058-4025 is a O-Ring, manufactured by Rubbercraft Corporation of California, Ltd. Dba Rubbercraft Corp, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-058-4025?

NSN 5331-01-058-4025 has 1 cross-referenced part number: 20487 (Rubbercraft Corporation of California, Ltd. Dba Rubbercraft Corp).

What NSN replaces 5331-01-058-4025?

There are 6 known substitutes for 5331-01-058-4025: 7690-00-083-5757, 5935-00-199-2635, 3120-01-025-7150 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 20487?

Key specifications for 20487: Material: RUBBER SYNTHETIC; Center Hole Diameter: 0.639 INCHES MINIMUM AND 0.649 INCHES MAXIMUM IN; Cross-Sectional Height: 0.084 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN. 3 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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