PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

SECO27CT3Seal,conical,flared Tube Fitting

Seco Seals, Inc · NSN 4730-01-286-8841 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-286-8841 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-286-8841. Primary manufacturer part number: SECO27CT3.
Features
  • Seal,conical,flared Tube Fitting — FSC 4730
  • Body Length: 0.302 INCHES NOMINAL IN
  • Seat Angle in Deg: 37.0
  • Hose/tube Outside Diameter for Which Designed: 0.188 INCHES NOMINAL IN
  • Outside Diameter: 0.317 INCHES NOMINAL IN
  • Material: COPPER ALLOY 130
  • Style Designator: SEAL
  • Surface Treatment: TIN
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 4730-01-286-8841, 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 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 12 commercial cross-references from 7 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
NSN4730-01-286-8841
Primary Part NumberSECO27CT3
Item NameSeal,conical,flared Tube Fitting
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerSeco Seals, Inc
StatusACTIVE
Body Length0.302 INCHES NOMINAL IN
Seat Angle in Deg37.0
Hose/tube Outside Diameter for Which Designed0.188 INCHES NOMINAL IN
Outside Diameter0.317 INCHES NOMINAL IN
MaterialCOPPER ALLOY 130
Style DesignatorSEAL
Surface TreatmentTIN
Casehardening IndicatorNOT CASEHARDENED
Wall Thickness0.005 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
4730-00-078-8519SEC027C12L INTERCHANGEABLE
Seal,conical,flared Tube Fitting
Howmet Global Fastening Systems Inc Div Torrance Operations
4730-00-871-13397M27A4 INTERCHANGEABLE
Seal,conical,flared Tube Fitting
The Boeing Company Div Defense
4730-00-871-1340SEC027A6 INTERCHANGEABLE
Seal,conical,flared Tube Fitting
Seco Seals, Inc
4730-00-960-300210158973-2 INTERCHANGEABLE
Seal,conical,flared Tube Fitting
Us Army Aviation and Missile Command
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
SECO27CT3 PRIMARY Seco Seals, Inc (USA)
VSF1015CT3 Howmet Global Fastening Systems Inc Div Rosan Products (USA)
VSF1015CT3 PRIMARY Mid-State Sales, Inc. Div Defense Products Group (USA)
DY90-T-3L PRIMARY Del Aerospace Inc Dba Del Aerospace Inc (USA)
7M27 The Boeing Company Div Defense (USA)
VSF1015CT3 Howmet Global Fastening Systems Inc Div Torrance Operations (USA)
VSF1015CT3 Howmet Global Fastening Systems Inc Div Rosan / Eagle Products (USA)
7M27CT3 The Boeing Company Div Defense (USA)
SE2027CT3 Seco Seals, Inc (USA)
DY90 Del Aerospace Inc Dba Del Aerospace Inc (USA)
VSF1015CT3 Seco Seals, Inc (USA)
SECO7CT3 PRIMARY Seco Seals, Inc (USA)
Related Parts
4730-00-078-8519INTERCHANGEABLE
SEAL,CONICAL,FLARED TUBE FITTING
SEC027C12L
4730-00-871-1339INTERCHANGEABLE
SEAL,CONICAL,FLARED TUBE FITTING
7M27A4
4730-00-871-1340INTERCHANGEABLE
SEAL,CONICAL,FLARED TUBE FITTING
SEC027A6
4730-00-960-3002INTERCHANGEABLE
SEAL,CONICAL,FLARED TUBE FITTING
10158973-2
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

Frequently Asked Questions

What is NSN 4730-01-286-8841?

NSN 4730-01-286-8841 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 4730-01-286-8841?

NSN 4730-01-286-8841 has 12 cross-referenced part numbers: SECO27CT3 (Seco Seals, Inc), VSF1015CT3 (Howmet Global Fastening Systems Inc Div Rosan Products), VSF1015CT3 (Mid-State Sales, Inc. Div Defense Products Group), DY90-T-3L (Del Aerospace Inc Dba Del Aerospace Inc), 7M27 (The Boeing Company Div Defense) and 7 more.

What NSN replaces 4730-01-286-8841?

There are 7 known substitutes for 4730-01-286-8841: 4730-00-078-8519, 4730-00-871-1339, 4730-00-871-1340 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of SECO27CT3?

Key specifications for SECO27CT3: End Item Identification: BEN MISSILE; ALL-WEATHER; ANTI-SHIP, HARPOON (AGM-84); Body Length: 0.302 INCHES NOMINAL IN; Seat Angle in Deg: 37.0; Special Features: L AFTER DASH NUMBER WILL BE LOX CLEANED AND PACKAGED IN ACCORDANCE WITH MAC SPEC 27M100. 11 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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