PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

321Plate,mounting

Harken Inc · NSN 5340-01-458-4439 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-01-458-4439 — this item is cataloged by the U.S. Government under National Stock Number 5340-01-458-4439. Primary manufacturer part number: 321.
Features
  • Plate,mounting — FSC 5340
  • 1 verified cross-reference
  • Primary manufacturer: Harken Inc
Applications
  • General assembly and fastening
  • Structural repair and reinforcement
  • Facility maintenance hardware
General Description

The Plate,mounting, cataloged under National Stock Number 5340-01-458-4439, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Harken Inc. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5340-01-458-4439
Primary Part Number321
Item NamePlate,mounting
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerHarken Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
Depressor,tongue
Cross-Reference Index
Part NumberManufacturer
321 PRIMARY Harken Inc (USA)
Related Parts
6515-00-324-5500SUCCESSOR
DEPRESSOR,TONGUE

Frequently Asked Questions

What is NSN 5340-01-458-4439?

NSN 5340-01-458-4439 is a Plate,mounting, manufactured by Harken Inc, classified under FSC 5340 (No Item Name Available). Status: active.

What are the part numbers for NSN 5340-01-458-4439?

NSN 5340-01-458-4439 has 1 cross-referenced part number: 321 (Harken Inc).

What NSN replaces 5340-01-458-4439?

There is 1 known substitute for 5340-01-458-4439: 6515-00-324-5500. Verify interchangeability with system specifications before substitution.

What are the specifications of 321?

Key specifications for 321: End Item Identification: USED ON SAILBOAT; Special Features: 1.500 IN SPLIT BACK STAY IN. 2 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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