PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

520-13550-1Coupling,tolerance

The Boeing Company Div Legacy Wichita · NSN 4730-00-627-3429 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-627-3429 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-627-3429. Primary manufacturer part number: 520-13550-1.
Features
  • Coupling,tolerance — FSC 4730
  • General Characteristics Item Description: BASIC MATERIAL ALUMINUM ALLOY 2017-T4,ANODIZED MIL-A-8625;7.170 IN. FLANGE OD;6.500 IN. O/A ASSEMBLED LG;C/O 2 FLANGE,2 SLEEVE,4 RING,1 HOSE,AND MISC ATTACHING HARDWARE IN
  • 5 verified cross-references
  • Primary manufacturer: The Boeing Company Div Legacy Wichita
Applications
  • Plumbing and fluid distribution
  • Industrial piping systems
  • Fuel and lubricant distribution
General Description

The Coupling,tolerance, cataloged under National Stock Number 4730-00-627-3429, 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 Legacy Wichita. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-00-627-3429
Primary Part Number520-13550-1
Item NameCoupling,tolerance
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerThe Boeing Company Div Legacy Wichita
StatusACTIVE
General Characteristics Item DescriptionBASIC MATERIAL ALUMINUM ALLOY 2017-T4,ANODIZED MIL-A-8625;7.170 IN. FLANGE OD;6.500 IN. O/A ASSEMBLED LG;C/O 2 FLANGE,2 SLEEVE,4 RING,1 HOSE,AND MISC ATTACHING HARDWARE IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5950-00-061-447761A12D26 INTERCHANGEABLE
Transformer,power
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
3110-00-117-0779 INTERCHANGEABLE
Bearing,roller,thrust
5330-00-907-597238120 INTERCHANGEABLE
Packing,preformed
Mitsubishi Caterpillar Forklift America, Inc
5985-01-070-7450381-20 INTERCHANGEABLE
Attenuator,fixed
Cinch Connectivity Solutions Inc
4730-01-268-0251520-13550-6 INTERCHANGEABLE
Adapter,straight,flange to Flang
The Boeing Company Div Legacy Wichita
5975-01-365-520938120 INTERCHANGEABLE
Chassis,electrical-Electronic Eq
Motorola/codex Corp Sub of Motorola Inc
4720-01-386-1813GH793-20 INTERCHANGEABLE
Hose,nonmetallic
Danfoss Power Solutions II, Llc
5120-01-581-4154 INTERCHANGEABLE
Socket,socket Wrench
1560-01-724-760338120 INTERCHANGEABLE
Support,structural Component,air
Avtechtyee Inc Dba Avtech
Cross-Reference Index
Part NumberManufacturer
295 Palmer Co the (USA)
5A1081 Bfgoodrich Co the Aerospace Div Engineered Polymer Products (USA)
10-20087 The Boeing Company Div Legacy Wichita (USA)
38120 American Fuel Cell and Coated Fabrics Company, Llc (USA)
520-13550-1 PRIMARY The Boeing Company Div Legacy Wichita (USA)
Related Parts
5950-00-061-4477INTERCHANGEABLE
TRANSFORMER,POWER
61A12D26
3110-00-117-0779INTERCHANGEABLE
BEARING,ROLLER,THRUST
5330-00-907-5972INTERCHANGEABLE
PACKING,PREFORMED
38120
5985-01-070-7450INTERCHANGEABLE
ATTENUATOR,FIXED
381-20
4730-01-268-0251INTERCHANGEABLE
ADAPTER,STRAIGHT,FLANGE TO FLANG
520-13550-6
5975-01-365-5209INTERCHANGEABLE
CHASSIS,ELECTRICAL-ELECTRONIC EQ
38120
4720-01-386-1813INTERCHANGEABLE
HOSE,NONMETALLIC
GH793-20
5120-01-581-4154INTERCHANGEABLE
SOCKET,SOCKET WRENCH
1560-01-724-7603INTERCHANGEABLE
SUPPORT,STRUCTURAL COMPONENT,AIR
38120

Frequently Asked Questions

What is NSN 4730-00-627-3429?

NSN 4730-00-627-3429 is a Coupling,tolerance, manufactured by The Boeing Company Div Legacy Wichita, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-627-3429?

NSN 4730-00-627-3429 has 5 cross-referenced part numbers: 295 (Palmer Co the), 5A1081 (Bfgoodrich Co the Aerospace Div Engineered Polymer Products), 10-20087 (The Boeing Company Div Legacy Wichita), 38120 (American Fuel Cell and Coated Fabrics Company, Llc), 520-13550-1 (The Boeing Company Div Legacy Wichita).

What NSN replaces 4730-00-627-3429?

There are 9 known substitutes for 4730-00-627-3429: 5950-00-061-4477, 3110-00-117-0779, 5330-00-907-5972 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 520-13550-1?

Key specifications for 520-13550-1: General Characteristics Item Description: BASIC MATERIAL ALUMINUM ALLOY 2017-T4,ANODIZED MIL-A-8625;7.170 IN. FLANGE OD;6.500 IN. O/A ASSEMBLED LG;C/O 2 FLANGE,2 SLEEVE,4 RING,1 HOSE,AND MISC ATTACHING HARDWARE 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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