PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

520021-1Blocking,bar

Naval Air Warfare Center Aircraft Division Joint Base Jbmdl · NSN 1720-01-468-6893 · FSC 1720 · No Item Name Available
Verified by PartsTable
NSN 1720-01-468-6893 — this item is cataloged by the U.S. Government under National Stock Number 1720-01-468-6893. Primary manufacturer part number: 520021-1.
Features
  • Blocking,bar — FSC 1720
  • General Characteristics Item Description: ITEM CONSISTS OF 2 BAR WITH 4 IN. LENGTH, 1 IN. WIDTH, 1/2 IN. HEIGTH, P/N 520021-3; 1 BAR WITH 26 IN. LENGTH, 4 IN. WIDTH, 1 1/8 IN. HEIGTH, P/N 520021-2; MATERIAL OF STEEL IN
  • 1 verified cross-reference
  • Primary manufacturer: Naval Air Warfare Center Aircraft Division Joint Base Jbmdl
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Blocking,bar, cataloged under National Stock Number 1720-01-468-6893, 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. 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN1720-01-468-6893
Primary Part Number520021-1
Item NameBlocking,bar
FSC / FSG1720 / 17 — No Item Name Available
ManufacturerNaval Air Warfare Center Aircraft Division Joint Base Jbmdl
StatusACTIVE
General Characteristics Item DescriptionITEM CONSISTS OF 2 BAR WITH 4 IN. LENGTH, 1 IN. WIDTH, 1/2 IN. HEIGTH, P/N 520021-3; 1 BAR WITH 26 IN. LENGTH, 4 IN. WIDTH, 1 1/8 IN. HEIGTH, P/N 520021-2; MATERIAL OF STEEL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
7025-01-060-70495200-211 INTERCHANGEABLE
Guide,cover,paper
Raytheon Company Div Rmd Strategic
4730-01-457-8670520021-1 INTERCHANGEABLE
Plug,pipe
Sea-Dog Line Div of Sneve-Nysether Inc
Cross-Reference Index
Part NumberManufacturer
520021-1 PRIMARY Naval Air Warfare Center Aircraft Division Joint Base Jbmdl (USA)
Related Parts
7025-01-060-7049INTERCHANGEABLE
GUIDE,COVER,PAPER
5200-211
4730-01-457-8670INTERCHANGEABLE
PLUG,PIPE
520021-1

Frequently Asked Questions

What is NSN 1720-01-468-6893?

NSN 1720-01-468-6893 is a Blocking,bar, 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 1720-01-468-6893?

NSN 1720-01-468-6893 has 1 cross-referenced part number: 520021-1 (Naval Air Warfare Center Aircraft Division Joint Base Jbmdl).

What NSN replaces 1720-01-468-6893?

There are 2 known substitutes for 1720-01-468-6893: 7025-01-060-7049, 4730-01-457-8670. Verify interchangeability with system specifications before substitution.

What are the specifications of 520021-1?

Key specifications for 520021-1: General Characteristics Item Description: ITEM CONSISTS OF 2 BAR WITH 4 IN. LENGTH, 1 IN. WIDTH, 1/2 IN. HEIGTH, P/N 520021-3; 1 BAR WITH 26 IN. LENGTH, 4 IN. WIDTH, 1 1/8 IN. HEIGTH, P/N 520021-2; MATERIAL OF STEEL 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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