PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

409-50003-20Flange,pipe

The Boeing Company Div Defense · NSN 4730-01-362-2988 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-362-2988 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-362-2988. Primary manufacturer part number: 409-50003-20.
Features
  • Flange,pipe — FSC 4730
  • Surface Treatment Document and Classification: BMS10-11K TYPE I MIL SPEC 1ST TREATMENT RESPONSE AND BMS10-11K TYPE II FED SPEC 2ND TREATMENT RESPONSE
  • Surface Treatment: PRIMER
  • 2 verified cross-references
  • Primary manufacturer: The Boeing Company Div Defense
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
General Description

The Flange,pipe, cataloged under National Stock Number 4730-01-362-2988, 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 The Boeing Company Div Defense. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, 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
NSN4730-01-362-2988
Primary Part Number409-50003-20
Item NameFlange,pipe
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerThe Boeing Company Div Defense
StatusACTIVE
Surface Treatment Document and ClassificationBMS10-11K TYPE I MIL SPEC 1ST TREATMENT RESPONSE AND BMS10-11K TYPE II FED SPEC 2ND TREATMENT RESPONSE
Surface TreatmentPRIMER
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
3455-01-042-0891 INTERCHANGEABLE
File,rotary
5310-01-599-453412759-01278 INTERCHANGEABLE
Washer,lock
Fastenal Company Dba Fastenal Co
Cross-Reference Index
Part NumberManufacturer
409-50003-20 The Boeing Company Div Defense (USA)
33719 Spx Corporation Dba Dielectric Communications Div Spx Communication Technologies (USA)
Related Parts
3455-01-042-0891INTERCHANGEABLE
FILE,ROTARY
5310-01-599-4534INTERCHANGEABLE
WASHER,LOCK
12759-01278

Frequently Asked Questions

What is NSN 4730-01-362-2988?

NSN 4730-01-362-2988 is a Flange,pipe, manufactured by The Boeing Company Div Defense, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-362-2988?

NSN 4730-01-362-2988 has 2 cross-referenced part numbers: 409-50003-20 (The Boeing Company Div Defense), 33719 (Spx Corporation Dba Dielectric Communications Div Spx Communication Technologies).

What NSN replaces 4730-01-362-2988?

There are 2 known substitutes for 4730-01-362-2988: 3455-01-042-0891, 5310-01-599-4534. Verify interchangeability with system specifications before substitution.

What are the specifications of 409-50003-20?

Key specifications for 409-50003-20: Surface Treatment Document and Classification: BMS10-11K TYPE I MIL SPEC 1ST TREATMENT RESPONSE AND BMS10-11K TYPE II FED SPEC 2ND TREATMENT RESPONSE; Surface Treatment: PRIMER; End Item Identification: AIRCRAFT MODEL E-6A A; Special Features: MEASUREMENTS: 18.000 IN. LG.; 9.000 IN. LG. OF IT. 3,FACE TO FACE IN. 4 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com