PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS21921-10Nut,tube Coupling

Sae International Dba Sae International · NSN 4730-00-821-1824 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-821-1824 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-821-1824. Primary manufacturer part number: MS21921-10.
Features
  • Nut,tube Coupling — FSC 4730
  • 10 verified cross-references
  • Primary manufacturer: Sae International Dba Sae International
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Fluid conveyance
  • Hydraulic system plumbing
General Description

The Nut,tube Coupling, cataloged under National Stock Number 4730-00-821-1824, is classified within Federal Supply Class 4730 (No Item Name Available) of the Pipe, Tubing, Hose, and Fittings group. The primary manufacturer of record is Sae International Dba Sae International. This item has 10 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled.

Catalog Facts
Item NameNut,tube Coupling
FSC / FSG4730 — No Item Name Available (FSG 47)
ManufacturersMilitary Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M (CAGE 96906); Sae International Dba Sae International (CAGE 0U583); E.c.a Etablissement Centrald'approvisionnement Des Forces Armee (CAGE SCY13); Navistar International Corporation Dba Navistar (CAGE 31007); Society of Automotive Engineers Inc (CAGE 81343)
Technical Specifications
ParameterValue
NSN4730-00-821-1824
Primary Part NumberMS21921-10
Item NameNut,tube Coupling
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerSae International Dba Sae International
StatusCANCELLED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 1
4730-00-555-8204 INTERCHANGEABLE
Nut,tube Coupling
Cross-Reference Index
Part NumberManufacturer
MS21921D10 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MS21921-10 PRIMARY Sae International Dba Sae International (USA)
4730008211824 E.c.a Etablissement Centrald'approvisionnement Des Forces Armee
9409525 Navistar International Corporation Dba Navistar (USA)
SAE-AS18280 Sae International Dba Sae International (USA)
AS18280 Society of Automotive Engineers Inc (USA)
AS21921 Society of Automotive Engineers Inc (USA)
MS21921-10 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
AS18280 Sae International Dba Sae International (USA)
AS21921 Sae International Dba Sae International (USA)
Related Parts
4730-00-555-8204INTERCHANGEABLE
NUT,TUBE COUPLING

Frequently Asked Questions

What is NSN 4730-00-821-1824?

NSN 4730-00-821-1824 is a Nut,tube Coupling, manufactured by Sae International Dba Sae International, classified under FSC 4730 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4730-00-821-1824?

NSN 4730-00-821-1824 has 10 cross-referenced part numbers: MS21921D10 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), MS21921-10 (Sae International Dba Sae International), 4730008211824 (E.c.a Etablissement Centrald'approvisionnement Des Forces Armee), 9409525 (Navistar International Corporation Dba Navistar), SAE-AS18280 (Sae International Dba Sae International) and 5 more.

What NSN replaces 4730-00-821-1824?

There is 1 known substitute for 4730-00-821-1824: 4730-00-555-8204. Verify interchangeability with system specifications before substitution.

Is NSN 4730-00-821-1824 still in active supply?

NSN 4730-00-821-1824 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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