PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

SEC027A6Seal,conical,flared Tube Fitting

Seco Seals, Inc · NSN 4730-00-871-1340 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-871-1340 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-871-1340. Primary manufacturer part number: SEC027A6.
Features
  • Seal,conical,flared Tube Fitting — FSC 4730
  • Casehardening Indicator: NOT CASEHARDENED
  • Seat Angle in Deg: 37.0
  • Body Length: 0.075 INCHES NOMINAL IN
  • Outside Diameter: 0.486 INCHES NOMINAL IN
  • Style Designator: SEAL
  • Hose/tube Outside Diameter for Which Designed: 0.375 INCHES NOMINAL IN
  • Material: ALUMINUM ALLOY 1100
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 4730-00-871-1340, 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 Seco Seals, Inc. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 16 commercial cross-references from 13 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-00-871-1340
Primary Part NumberSEC027A6
Item NameSeal,conical,flared Tube Fitting
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerSeco Seals, Inc
StatusACTIVE
Casehardening IndicatorNOT CASEHARDENED
Seat Angle in Deg37.0
Body Length0.075 INCHES NOMINAL IN
Outside Diameter0.486 INCHES NOMINAL IN
Style DesignatorSEAL
Hose/tube Outside Diameter for Which Designed0.375 INCHES NOMINAL IN
MaterialALUMINUM ALLOY 1100
Wall Thickness0.005 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4730-00-078-8519SEC027C12L INTERCHANGEABLE
Seal,conical,flared Tube Fitting
Howmet Global Fastening Systems Inc Div Torrance Operations
4730-00-606-17167M27A16 INTERCHANGEABLE
Seal,conical,flared Tube Fitting
The Boeing Company Div Defense
4730-00-779-06197827256-43 INTERCHANGEABLE
Seal,conical,flared Tube Fitting
Air Force United States Department of the Dba Tinker Afb Oc Alc Dsp Div Department of the Air Force
4730-00-871-13397M27A4 INTERCHANGEABLE
Seal,conical,flared Tube Fitting
The Boeing Company Div Defense
4730-00-907-40857827256-15 INTERCHANGEABLE
Seal,conical,flared Tube Fitting
Air Force United States Department of the Dba Tinker Afb Oc Alc Dsp Div Department of the Air Force
4730-00-960-300210158973-2 INTERCHANGEABLE
Seal,conical,flared Tube Fitting
Us Army Aviation and Missile Command
4730-01-070-31037827256-11 INTERCHANGEABLE
Seal,conical,flared Tube Fitting
Air Force United States Department of the Dba Tinker Afb Oc Alc Dsp Div Department of the Air Force
4730-01-102-59647M27CT16 INTERCHANGEABLE
Seal,conical,flared Tube Fitting
The Boeing Company Div Defense
4730-01-117-6589DY90-T-12L INTERCHANGEABLE
Seal,conical,flared Tube Fitting
Del Aerospace Inc Dba Del Aerospace Inc
4730-01-211-93997M27CT2 INTERCHANGEABLE
Seal,conical,flared Tube Fitting
The Boeing Company Div Defense
Cross-Reference Index
Part NumberManufacturer
SEC027A6 PRIMARY Seco Seals, Inc (USA)
44300-550-3 Goodrich Corporation Dba Trw Lucas Aerospace (USA)
7M27 The Boeing Company Div Defense (USA)
DY90-A-6 Del Aerospace Inc Dba Del Aerospace Inc (USA)
VSF1015A6 Howmet Global Fastening Systems Inc Div Rosan / Eagle Products (USA)
55E211-D6 Lockheed Martin Corp (USA)
55E211 Lockheed Martin Corporation Div Rotary and Mission Systems (USA)
VSF1015A6 Fairchild Fasteners Europe - Vsd Gmbh (DEU)
7M27A6 The Boeing Company Div Defense (USA)
44300-550 Triumph Gear Systems Inc Dba Triumph Gear Systems Inc (USA)
55E211-D6 Lockheed Martin Corporation Div Rotary and Mission Systems (USA)
VSF1015A6 Howmet Global Fastening Systems Inc Div Torrance Operations (USA)
VSF1015A6 Howmet Global Fastening Systems Inc Div Rosan Products (USA)
AP100A6 Sps Technologies, Llc Dba Airdrome Precision Components (USA)
10630103-11 Ballistic Missile Defense Systems Command (USA)
44300-550-3 Triumph Gear Systems Inc Dba Triumph Gear Systems Inc (USA)
Related Parts
4730-00-078-8519INTERCHANGEABLE
SEAL,CONICAL,FLARED TUBE FITTING
SEC027C12L
4730-00-606-1716INTERCHANGEABLE
SEAL,CONICAL,FLARED TUBE FITTING
7M27A16
4730-00-779-0619INTERCHANGEABLE
SEAL,CONICAL,FLARED TUBE FITTING
7827256-43
4730-00-871-1339INTERCHANGEABLE
SEAL,CONICAL,FLARED TUBE FITTING
7M27A4
4730-00-907-4085INTERCHANGEABLE
SEAL,CONICAL,FLARED TUBE FITTING
7827256-15
4730-00-960-3002INTERCHANGEABLE
SEAL,CONICAL,FLARED TUBE FITTING
10158973-2
4730-01-070-3103INTERCHANGEABLE
SEAL,CONICAL,FLARED TUBE FITTING
7827256-11
4730-01-102-5964INTERCHANGEABLE
SEAL,CONICAL,FLARED TUBE FITTING
7M27CT16
4730-01-117-6589INTERCHANGEABLE
SEAL,CONICAL,FLARED TUBE FITTING
DY90-T-12L
4730-01-211-9399INTERCHANGEABLE
SEAL,CONICAL,FLARED TUBE FITTING
7M27CT2
4730-01-248-5270INTERCHANGEABLE
SEAL,CONICAL,FLARED TUBE FITTING
VSF1015A24
4730-01-250-2000INTERCHANGEABLE
SEAL,CONICAL,FLARED TUBE FITTING
AS48424A05

Frequently Asked Questions

What is NSN 4730-00-871-1340?

NSN 4730-00-871-1340 is a Seal,conical,flared Tube Fitting, manufactured by Seco Seals, Inc, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-871-1340?

NSN 4730-00-871-1340 has 16 cross-referenced part numbers: SEC027A6 (Seco Seals, Inc), 44300-550-3 (Goodrich Corporation Dba Trw Lucas Aerospace), 7M27 (The Boeing Company Div Defense), DY90-A-6 (Del Aerospace Inc Dba Del Aerospace Inc), VSF1015A6 (Howmet Global Fastening Systems Inc Div Rosan / Eagle Products) and 11 more.

What NSN replaces 4730-00-871-1340?

There are 12 known substitutes for 4730-00-871-1340: 4730-00-078-8519, 4730-00-606-1716, 4730-00-779-0619 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of SEC027A6?

Key specifications for SEC027A6: Casehardening Indicator: NOT CASEHARDENED; Seat Angle in Deg: 37.0; Body Length: 0.075 INCHES NOMINAL IN; Special Features: ALL PARTS SHALL BE CLEANED AND PACKAGED IN ACCORDANCE WITH MAC SPECIFICATION 27M100. 9 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