PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21-1378Bumper

Horizon Aerospace Llc Dba Magnetics Division · NSN 5340-01-312-3879 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-01-312-3879 — this item is cataloged by the U.S. Government under National Stock Number 5340-01-312-3879. Primary manufacturer part number: 21-1378.
Features
  • Bumper — FSC 5340
  • 1 verified cross-reference
  • Primary manufacturer: Horizon Aerospace Llc Dba Magnetics Division
Applications
  • General assembly and fastening
  • Structural repair and reinforcement
  • Facility maintenance hardware
General Description

The Bumper, cataloged under National Stock Number 5340-01-312-3879, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Horizon Aerospace Llc Dba Magnetics Division. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Catalog Facts
Item NameBumper
FSC / FSG5340 — No Item Name Available (FSG 53)
ManufacturersHorizon Aerospace Llc Dba Magnetics Division (CAGE 35918)
Technical Specifications
ParameterValue
NSN5340-01-312-3879
Primary Part Number21-1378
Item NameBumper
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerHorizon Aerospace Llc Dba Magnetics Division
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Unit of IssueEA
Verified Substitutes 2
5330-00-251-4411211378 INTERCHANGEABLE
Gasket
Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic
2530-00-709-9667200185 INTERCHANGEABLE
Diaphragm Release Valve
Westinghouse Air Brake Technologies Corp Dba Westinghouse Air Brake Technologies Corp
Cross-Reference Index
Part NumberManufacturer
21-1378 PRIMARY Horizon Aerospace Llc Dba Magnetics Division (USA)
Related Parts
5330-00-251-4411INTERCHANGEABLE
GASKET
211378
2530-00-709-9667INTERCHANGEABLE
DIAPHRAGM RELEASE VALVE
200185

Frequently Asked Questions

What is NSN 5340-01-312-3879?

NSN 5340-01-312-3879 is a Bumper, manufactured by Horizon Aerospace Llc Dba Magnetics Division, classified under FSC 5340 (No Item Name Available). Status: active.

What are the part numbers for NSN 5340-01-312-3879?

NSN 5340-01-312-3879 has 1 cross-referenced part number: 21-1378 (Horizon Aerospace Llc Dba Magnetics Division).

What NSN replaces 5340-01-312-3879?

There are 2 known substitutes for 5340-01-312-3879: 5330-00-251-4411, 2530-00-709-9667. Verify interchangeability with system specifications before substitution.

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