PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21-447Bumper Assembly

Horizon Aerospace Llc Dba Magnetics Division · NSN 6685-00-144-4494 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-144-4494 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-144-4494. Primary manufacturer part number: 21-447.
Features
  • Bumper Assembly — FSC 6685
  • General Characteristics Item Description: INSULATOR WM17-16 2; BUMPER,POINTER 21-428 1; 0.750 IN. L IN
  • 1 verified cross-reference
  • Primary manufacturer: Horizon Aerospace Llc Dba Magnetics Division
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Bumper Assembly, cataloged under National Stock Number 6685-00-144-4494, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Horizon Aerospace Llc Dba Magnetics Division. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6685-00-144-4494
Primary Part Number21-447
Item NameBumper Assembly
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerHorizon Aerospace Llc Dba Magnetics Division
StatusACTIVE
General Characteristics Item DescriptionINSULATOR WM17-16 2; BUMPER,POINTER 21-428 1; 0.750 IN. L IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
2990-00-441-81051109 INTERCHANGEABLE
Muffler,exhaust
Merit Industries Inc
5930-00-732-205121447 INTERCHANGEABLE
Switch,toggle
Mason Electric Co. Dba Mason Controls
5996-00-848-909021447-1 INTERCHANGEABLE
Amplifier Subassembly
Rex Systems Incorporated Dba Rex Systems Inc
3040-01-194-9779214-47 INTERCHANGEABLE
Accumulator,pneumatic
Applied Companies
3130-01-218-70812-1447 INTERCHANGEABLE
Housing,bearing Unit
Ohio Transmission Llc Dba Ohio Transmission Llc
6850-01-601-338900638 INTERCHANGEABLE
Sealer,chemical
Henkel Loctite Corp
Cross-Reference Index
Part NumberManufacturer
21-447 PRIMARY Horizon Aerospace Llc Dba Magnetics Division (USA)
Related Parts
2990-00-441-8105INTERCHANGEABLE
MUFFLER,EXHAUST
1109
5930-00-732-2051INTERCHANGEABLE
SWITCH,TOGGLE
21447
5996-00-848-9090INTERCHANGEABLE
AMPLIFIER SUBASSEMBLY
21447-1
3040-01-194-9779INTERCHANGEABLE
ACCUMULATOR,PNEUMATIC
214-47
3130-01-218-7081INTERCHANGEABLE
HOUSING,BEARING UNIT
2-1447
6850-01-601-3389INTERCHANGEABLE
SEALER,CHEMICAL
00638

Frequently Asked Questions

What is NSN 6685-00-144-4494?

NSN 6685-00-144-4494 is a Bumper Assembly, manufactured by Horizon Aerospace Llc Dba Magnetics Division, classified under FSC 6685 (No Item Name Available). Status: active.

What are the part numbers for NSN 6685-00-144-4494?

NSN 6685-00-144-4494 has 1 cross-referenced part number: 21-447 (Horizon Aerospace Llc Dba Magnetics Division).

What NSN replaces 6685-00-144-4494?

There are 6 known substitutes for 6685-00-144-4494: 2990-00-441-8105, 5930-00-732-2051, 5996-00-848-9090 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21-447?

Key specifications for 21-447: General Characteristics Item Description: INSULATOR WM17-16 2; BUMPER,POINTER 21-428 1; 0.750 IN. L IN. 1 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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