PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

S0254A8Seal,conical,flared Tube Fitting

The Boeing Company · NSN 4730-00-936-5186 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-936-5186 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-936-5186. Primary manufacturer part number: S0254A8.
Features
  • Seal,conical,flared Tube Fitting — FSC 4730
  • Seat Angle in Deg: 37.0
  • Body Length: 0.095 INCHES NOMINAL IN
  • Hose/tube Outside Diameter for Which Designed: 0.500 INCHES NOMINAL IN
  • Style Designator: SEAL
  • Outside Diameter: 0.674 INCHES NOMINAL IN
  • Material: ALUMINUM ALLOY 1100
  • Wall Thickness: 0.010 INCHES NOMINAL IN
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Fluid conveyance
  • Hydraulic system plumbing
General Description

The Seal,conical,flared Tube Fitting, cataloged under National Stock Number 4730-00-936-5186, 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. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-00-936-5186
Primary Part NumberS0254A8
Item NameSeal,conical,flared Tube Fitting
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerThe Boeing Company
StatusACTIVE
Seat Angle in Deg37.0
Body Length0.095 INCHES NOMINAL IN
Hose/tube Outside Diameter for Which Designed0.500 INCHES NOMINAL IN
Style DesignatorSEAL
Outside Diameter0.674 INCHES NOMINAL IN
MaterialALUMINUM ALLOY 1100
Wall Thickness0.010 INCHES NOMINAL IN
Casehardening IndicatorNOT CASEHARDENED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5360-00-630-4687 INTERCHANGEABLE
Spring,helical,compression
5310-00-675-7246368424 INTERCHANGEABLE
Nut,dee Offset
Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney
4730-00-764-7546DY90-C-32L INTERCHANGEABLE
Seal,conical,flared Tube Fitting
Del Aerospace Inc Dba Del Aerospace Inc
4730-00-789-4386966216-106 INTERCHANGEABLE
Seal,conical,flared Tube Fitting
Raytheon Company Dba Raytheon
4730-00-871-13397M27A4 INTERCHANGEABLE
Seal,conical,flared Tube Fitting
The Boeing Company Div Defense
4730-01-267-1397S0254R6 INTERCHANGEABLE
Seal,conical,flared Tube Fitting
The Boeing Company
4730-01-269-8096S0254R8 INTERCHANGEABLE
Seal,conical,flared Tube Fitting
The Boeing Company
Cross-Reference Index
Part NumberManufacturer
S0254 The Boeing Company (USA)
08226S0254A8 Reliable Industries Inc Dba Reliable Fastener Products (USA)
S0254A8 PRIMARY The Boeing Company (USA)
Related Parts
5360-00-630-4687INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
5310-00-675-7246INTERCHANGEABLE
NUT,DEE OFFSET
368424
4730-00-764-7546INTERCHANGEABLE
SEAL,CONICAL,FLARED TUBE FITTING
DY90-C-32L
4730-00-789-4386INTERCHANGEABLE
SEAL,CONICAL,FLARED TUBE FITTING
966216-106
4730-00-871-1339INTERCHANGEABLE
SEAL,CONICAL,FLARED TUBE FITTING
7M27A4
4730-01-267-1397INTERCHANGEABLE
SEAL,CONICAL,FLARED TUBE FITTING
S0254R6
4730-01-269-8096INTERCHANGEABLE
SEAL,CONICAL,FLARED TUBE FITTING
S0254R8

Frequently Asked Questions

What is NSN 4730-00-936-5186?

NSN 4730-00-936-5186 is a Seal,conical,flared Tube Fitting, manufactured by The Boeing Company, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-936-5186?

NSN 4730-00-936-5186 has 3 cross-referenced part numbers: S0254 (The Boeing Company), 08226S0254A8 (Reliable Industries Inc Dba Reliable Fastener Products), S0254A8 (The Boeing Company).

What NSN replaces 4730-00-936-5186?

There are 7 known substitutes for 4730-00-936-5186: 5360-00-630-4687, 5310-00-675-7246, 4730-00-764-7546 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of S0254A8?

Key specifications for S0254A8: Seat Angle in Deg: 37.0; Special Features: PROCESSED FOR DIRECT OXYGEN SERVICE; Body Length: 0.095 INCHES NOMINAL IN; Hose/tube Outside Diameter for Which Designed: 0.500 INCHES NOMINAL IN. 9 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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