PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

17491O-Ring

Frontgrade Technologies Inc. · NSN 5331-00-298-6237 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-00-298-6237 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-298-6237. Primary manufacturer part number: 17491.
Features
  • O-Ring — FSC 5331
  • Material: RUBBER
  • Cross-Sectional Height: 0.092 INCHES NOMINAL IN
  • 5 verified cross-references
  • Primary manufacturer: Frontgrade Technologies Inc.
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber construction
General Description

The O-Ring, cataloged under National Stock Number 5331-00-298-6237, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Frontgrade Technologies Inc.. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5331-00-298-6237
Primary Part Number17491
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerFrontgrade Technologies Inc.
StatusCANCELLED
MaterialRUBBER
Cross-Sectional Height0.092 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 5
3030-00-609-945817490 INTERCHANGEABLE
Belt,v
Carlisle Power Transmission Products Inc
5820-00-951-05471749-1 INTERCHANGEABLE
Dial Hub Assembly
Drs Signal Solutions, Inc.
6240-01-565-2140 INTERCHANGEABLE
Lamp,glow
6110-01-578-1950174-91 INTERCHANGEABLE
Agcu,repair Kit 3
Hamilton Sundstrand Corporation
4140-01-590-01071749-1 INTERCHANGEABLE
Impeller,fan,axial
Attwood Corp
Cross-Reference Index
Part NumberManufacturer
17491 Litton Systems Inc Airtron Div (USA)
17491 PRIMARY Frontgrade Technologies Inc. (USA)
LA17491 Litton Systems Inc Airtron Div (USA)
SP8158-1 Northrop Grumman Systems Corporation (USA)
LA17491 Frontgrade Technologies Inc. (USA)
Related Parts
3030-00-609-9458INTERCHANGEABLE
BELT,V
17490
5820-00-951-0547INTERCHANGEABLE
DIAL HUB ASSEMBLY
1749-1
6240-01-565-2140INTERCHANGEABLE
LAMP,GLOW
6110-01-578-1950INTERCHANGEABLE
AGCU,REPAIR KIT 3
174-91
4140-01-590-0107INTERCHANGEABLE
IMPELLER,FAN,AXIAL
1749-1

Frequently Asked Questions

What is NSN 5331-00-298-6237?

NSN 5331-00-298-6237 is a O-Ring, manufactured by Frontgrade Technologies Inc., classified under FSC 5331 (O-Ring). Status: cancelled.

What are the part numbers for NSN 5331-00-298-6237?

NSN 5331-00-298-6237 has 5 cross-referenced part numbers: 17491 (Litton Systems Inc Airtron Div), 17491 (Frontgrade Technologies Inc.), LA17491 (Litton Systems Inc Airtron Div), SP8158-1 (Northrop Grumman Systems Corporation), LA17491 (Frontgrade Technologies Inc.).

What NSN replaces 5331-00-298-6237?

There are 5 known substitutes for 5331-00-298-6237: 3030-00-609-9458, 5820-00-951-0547, 6240-01-565-2140 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 17491?

Key specifications for 17491: Material: RUBBER; Special Features: ACTION ID 45485745; Cross-Sectional Height: 0.092 INCHES NOMINAL IN. 3 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5331-00-298-6237 still in active supply?

NSN 5331-00-298-6237 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com