PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

18690O-Ring

Cat Pumps Corp · NSN 5331-01-373-1498 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-373-1498 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-373-1498. Primary manufacturer part number: 18690.
Features
  • O-Ring — FSC 5331
  • 1 verified cross-reference
  • Primary manufacturer: Cat Pumps Corp
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The O-Ring, cataloged under National Stock Number 5331-01-373-1498, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Cat Pumps Corp. 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.

Catalog Facts
Item NameO-Ring
FSC / FSG5331 — O-Ring (FSG 53)
ManufacturersCat Pumps Corp (CAGE 57783)
Technical Specifications
ParameterValue
NSN5331-01-373-1498
Primary Part Number18690
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerCat Pumps Corp
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
3110-00-100-352818690 INTERCHANGEABLE
Cone and Rollers,tapered Roller
The Timken Corporation
5970-00-442-016818690 INTERCHANGEABLE
Insulation Sleeving,electrical
Parker-Hannifin Corporation Dba Pneutronics Div Parflex Division
5330-00-599-70916460 INTERCHANGEABLE
Seal,plain Encased
Federal-Mogul Corp Government Sales Dept
9540-00-684-6321 INTERCHANGEABLE
Structural Section,special Shape
5950-00-806-90799140-0004 INTERCHANGEABLE
Coil,radio Frequency
Keysight Technologies Inc
4520-01-270-6271N-66RET/115 INTERCHANGEABLE
Control,damper
Itw Food Equipment Group Llc Dba Gaylord Industries
Cross-Reference Index
Part NumberManufacturer
18690 PRIMARY Cat Pumps Corp (USA)
Related Parts
3110-00-100-3528INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
18690
5970-00-442-0168INTERCHANGEABLE
INSULATION SLEEVING,ELECTRICAL
18690
5330-00-599-7091INTERCHANGEABLE
SEAL,PLAIN ENCASED
6460
9540-00-684-6321INTERCHANGEABLE
STRUCTURAL SECTION,SPECIAL SHAPE
5950-00-806-9079INTERCHANGEABLE
COIL,RADIO FREQUENCY
9140-0004
4520-01-270-6271INTERCHANGEABLE
CONTROL,DAMPER
N-66RET/115

Frequently Asked Questions

What is NSN 5331-01-373-1498?

NSN 5331-01-373-1498 is a O-Ring, manufactured by Cat Pumps Corp, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-373-1498?

NSN 5331-01-373-1498 has 1 cross-referenced part number: 18690 (Cat Pumps Corp).

What NSN replaces 5331-01-373-1498?

There are 6 known substitutes for 5331-01-373-1498: 3110-00-100-3528, 5970-00-442-0168, 5330-00-599-7091 and 3 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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