PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

820590Fitting,pipe

Firetrace Aerospace Llc · NSN 4730-01-566-6377 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-566-6377 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-566-6377. Primary manufacturer part number: 820590.
Features
  • Fitting,pipe — FSC 4730
  • 2 verified cross-references
  • Primary manufacturer: Firetrace Aerospace Llc
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
General Description

The Fitting,pipe, cataloged under National Stock Number 4730-01-566-6377, 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 Firetrace Aerospace Llc. This item has 2 commercial cross-references from 2 manufacturers, 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
NSN4730-01-566-6377
Primary Part Number820590
Item NameFitting,pipe
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerFiretrace Aerospace Llc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
6515-01-603-8555820590 INTERCHANGEABLE
Pack System Base
Granite Gear Inc.
Cross-Reference Index
Part NumberManufacturer
3684369C1 Nd Defense Llc (USA)
820590 PRIMARY Firetrace Aerospace Llc (USA)
Related Parts
6515-01-603-8555INTERCHANGEABLE
PACK SYSTEM BASE
820590

Frequently Asked Questions

What is NSN 4730-01-566-6377?

NSN 4730-01-566-6377 is a Fitting,pipe, manufactured by Firetrace Aerospace Llc, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-566-6377?

NSN 4730-01-566-6377 has 2 cross-referenced part numbers: 3684369C1 (Nd Defense Llc), 820590 (Firetrace Aerospace Llc).

What NSN replaces 4730-01-566-6377?

There is 1 known substitute for 4730-01-566-6377: 6515-01-603-8555. Verify interchangeability with system specifications before substitution.

What are the specifications of 820590?

Key specifications for 820590: End Item Identification: MRAP - UNIQUE NSN - MRAP NO PERMANENT WSDC IDENTIFIED; Part Name Assigned by Controlling Agency: FITTING,FSS,1/2"TUBE JIC UNION. 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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