PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

667-217-M-U2122-6Cover,protective,dust and Moistu

Glenair, Inc. · NSN 5340-01-721-7423 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-01-721-7423 — this item is cataloged by the U.S. Government under National Stock Number 5340-01-721-7423. Primary manufacturer part number: 667-217-M-U2122-6.
Features
  • Cover,protective,dust and Moistu — FSC 5340
  • 2 verified cross-references
  • Primary manufacturer: Glenair, Inc.
Applications
  • General assembly and fastening
  • Structural repair and reinforcement
  • Facility maintenance hardware
General Description

The Cover,protective,dust and Moistu, cataloged under National Stock Number 5340-01-721-7423, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Glenair, Inc.. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Catalog Facts
Item NameCover,protective,dust and Moistu
FSC / FSG5340 — No Item Name Available (FSG 53)
ManufacturersNaval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (CAGE 30003); Glenair, Inc. (CAGE 06324)
Technical Specifications
ParameterValue
NSN5340-01-721-7423
Primary Part Number667-217-M-U2122-6
Item NameCover,protective,dust and Moistu
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerGlenair, Inc.
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Unit of IssueEA
Verified Substitutes 1
6145-01-722-5466 INTERCHANGEABLE
Braid,wire
Cross-Reference Index
Part NumberManufacturer
4106AS0665 Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA)
667-217-M-U2122-6 PRIMARY Glenair, Inc. (USA)
Related Parts
6145-01-722-5466INTERCHANGEABLE
BRAID,WIRE

Frequently Asked Questions

What is NSN 5340-01-721-7423?

NSN 5340-01-721-7423 is a Cover,protective,dust and Moistu, manufactured by Glenair, Inc., classified under FSC 5340 (No Item Name Available). Status: active.

What are the part numbers for NSN 5340-01-721-7423?

NSN 5340-01-721-7423 has 2 cross-referenced part numbers: 4106AS0665 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier), 667-217-M-U2122-6 (Glenair, Inc.).

What NSN replaces 5340-01-721-7423?

There is 1 known substitute for 5340-01-721-7423: 6145-01-722-5466. Verify interchangeability with system specifications before substitution.

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