PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

417242-3Seal Segment,lower

Naval Air Warfare Center Aircraft Division Joint Base Jbmdl · NSN 1720-00-111-5529 · FSC 1720 · No Item Name Available
Verified by PartsTable
NSN 1720-00-111-5529 — this item is cataloged by the U.S. Government under National Stock Number 1720-00-111-5529. Primary manufacturer part number: 417242-3.
Features
  • Seal Segment,lower — FSC 1720
  • 13 verified cross-references
  • Primary manufacturer: Naval Air Warfare Center Aircraft Division Joint Base Jbmdl
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The Seal Segment,lower, cataloged under National Stock Number 1720-00-111-5529, is classified within Federal Supply Class 1720 (No Item Name Available) of the Aircraft Launch, Landing, and Ground Handling Equipment group. The primary manufacturer of record is Naval Air Warfare Center Aircraft Division Joint Base Jbmdl. This item has 13 commercial cross-references from 13 manufacturers, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Catalog Facts
Item NameSeal Segment,lower
FSC / FSG1720 — No Item Name Available (FSG 17)
ManufacturersAirtronics, Llc (CAGE 58078); Pre-Mach Inc (CAGE 5S946); Computa-Base-Machining, Inc. (CAGE 0A396); Billet Industries Inc Dba Billet Industries Inc (CAGE 3DDL3); Penn State Tool & Die Corp (CAGE 58974)
Technical Specifications
ParameterValue
NSN1720-00-111-5529
Primary Part Number417242-3
Item NameSeal Segment,lower
FSC / FSG1720 / 17 — No Item Name Available
ManufacturerNaval Air Warfare Center Aircraft Division Joint Base Jbmdl
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Cross-Reference Index
Part NumberManufacturer
417242-3 Airtronics, Llc (USA)
417242-3 Pre-Mach Inc (USA)
417242-3 Computa-Base-Machining, Inc. (USA)
417242-3 Billet Industries Inc Dba Billet Industries Inc (USA)
417242-3 Penn State Tool & Die Corp (USA)
417242-3 Hamill Manufacturing Company Dba Hamill Manufacturing Co (USA)
417242-3 PRIMARY Naval Air Warfare Center Aircraft Division Joint Base Jbmdl (USA)
417242-3 Honematic Machine Corporation Dba Pcx Aerosystems - Boylston Div Pcx Aerosystems - Boylston (USA)
417242-3 The Entwistle Company Llc (USA)
417242-3 G. S. E. Dynamics, Inc. Dba Gse Dynamics (USA)
417242-3 U.s.a. Spares Inc. (USA)
417242-3 Capy Machine Shop Inc. Dba Capy Machine Shop Inc (USA)
417242-3 Apex Manufacturing Company, Inc. Dba Apex Manufacturing Co (USA)
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Frequently Asked Questions

What is NSN 1720-00-111-5529?

NSN 1720-00-111-5529 is a Seal Segment,lower, manufactured by Naval Air Warfare Center Aircraft Division Joint Base Jbmdl, classified under FSC 1720 (No Item Name Available). Status: active.

What are the part numbers for NSN 1720-00-111-5529?

NSN 1720-00-111-5529 has 13 cross-referenced part numbers: 417242-3 (Airtronics, Llc), 417242-3 (Pre-Mach Inc), 417242-3 (Computa-Base-Machining, Inc.), 417242-3 (Billet Industries Inc Dba Billet Industries Inc), 417242-3 (Penn State Tool & Die Corp) and 8 more.

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