PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

7827256-31Seal,conical,flared Tube Fitting

Air Force United States Department of the Dba Tinker Afb Oc Alc Dsp Div Department of the Air Force · NSN 4730-01-070-8344 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-070-8344 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-070-8344. Primary manufacturer part number: 7827256-31.
Features
  • Seal,conical,flared Tube Fitting — FSC 4730
  • Outside Diameter: 1.208 INCHES MINIMUM AND 1.213 INCHES MAXIMUM IN
  • Body Length: 0.110 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN
  • Hose/tube Outside Diameter for Which Designed: 1.000 INCHES NOMINAL IN
  • Seat Angle in Deg: 37.0
  • Material Document and Classification: QQ-A-250/1,O FED SPEC 1ST MATERIAL RESPONSE OR AMS 4001 ASSN STD 2ND MATERIAL RESPONSE
  • Style Designator: SEAL
  • 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 4730-01-070-8344, 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 Air Force United States Department of the Dba Tinker Afb Oc Alc Dsp Div Department of the Air Force. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4730-01-070-8344
Primary Part Number7827256-31
Item NameSeal,conical,flared Tube Fitting
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerAir Force United States Department of the Dba Tinker Afb Oc Alc Dsp Div Department of the Air Force
StatusCANCELLED
Outside Diameter1.208 INCHES MINIMUM AND 1.213 INCHES MAXIMUM IN
Body Length0.110 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN
Hose/tube Outside Diameter for Which Designed1.000 INCHES NOMINAL IN
Seat Angle in Deg37.0
Material Document and ClassificationQQ-A-250/1,O FED SPEC 1ST MATERIAL RESPONSE OR AMS 4001 ASSN STD 2ND MATERIAL RESPONSE
Style DesignatorSEAL
MaterialALUMINUM ALLOY 1100
Wall Thickness0.010 INCHES NOMINAL IN
Casehardening IndicatorNOT CASEHARDENED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 9
6625-00-478-05987A16 INTERCHANGEABLE
Plug-in Unit,electrical-Electron
Tektronix, Inc.
2530-00-773-5664A3211Q953 INTERCHANGEABLE
Support
Abm Equipment, Llc
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
4730-00-907-40857827256-15 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
4730-01-070-31027827256-35 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
4730-01-070-31037827256-11 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
4730-01-070-35077827256-25 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
4730-01-070-8582DY90-A-28 INTERCHANGEABLE
Seal,conical,flared Tube Fitting
Del Aerospace Inc Dba Del Aerospace Inc
4730-01-070-98897827256-27 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
Cross-Reference Index
Part NumberManufacturer
7A16 Seco Seals, Inc (USA)
7827256 Air Force United States Department of the Dba Tinker Afb Oc Alc Dsp Div Department of the Air Force (USA)
7827256-31 PRIMARY Air Force United States Department of the Dba Tinker Afb Oc Alc Dsp Div Department of the Air Force (USA)
326991P01 Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc. (USA)
326991P01 Howden Fluid Systems (USA)
SEC07A16 Seco Seals, Inc (USA)
DY90-1-16 PRIMARY Del Aerospace Inc Dba Del Aerospace Inc (USA)
Related Parts
6625-00-478-0598INTERCHANGEABLE
PLUG-IN UNIT,ELECTRICAL-ELECTRON
7A16
2530-00-773-5664INTERCHANGEABLE
SUPPORT
A3211Q953
4730-00-779-0619INTERCHANGEABLE
SEAL,CONICAL,FLARED TUBE FITTING
7827256-43
4730-00-907-4085INTERCHANGEABLE
SEAL,CONICAL,FLARED TUBE FITTING
7827256-15
4730-01-070-3102INTERCHANGEABLE
SEAL,CONICAL,FLARED TUBE FITTING
7827256-35
4730-01-070-3103INTERCHANGEABLE
SEAL,CONICAL,FLARED TUBE FITTING
7827256-11
4730-01-070-3507INTERCHANGEABLE
SEAL,CONICAL,FLARED TUBE FITTING
7827256-25
4730-01-070-8582INTERCHANGEABLE
SEAL,CONICAL,FLARED TUBE FITTING
DY90-A-28
4730-01-070-9889INTERCHANGEABLE
SEAL,CONICAL,FLARED TUBE FITTING
7827256-27

Frequently Asked Questions

What is NSN 4730-01-070-8344?

NSN 4730-01-070-8344 is a Seal,conical,flared Tube Fitting, manufactured by Air Force United States Department of the Dba Tinker Afb Oc Alc Dsp Div Department of the Air Force, classified under FSC 4730 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4730-01-070-8344?

NSN 4730-01-070-8344 has 7 cross-referenced part numbers: 7A16 (Seco Seals, Inc), 7827256 (Air Force United States Department of the Dba Tinker Afb Oc Alc Dsp Div Department of the Air Force), 7827256-31 (Air Force United States Department of the Dba Tinker Afb Oc Alc Dsp Div Department of the Air Force), 326991P01 (Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc.), 326991P01 (Howden Fluid Systems) and 2 more.

What NSN replaces 4730-01-070-8344?

There are 9 known substitutes for 4730-01-070-8344: 6625-00-478-0598, 2530-00-773-5664, 4730-00-779-0619 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 7827256-31?

Key specifications for 7827256-31: Outside Diameter: 1.208 INCHES MINIMUM AND 1.213 INCHES MAXIMUM IN; Body Length: 0.110 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN; Hose/tube Outside Diameter for Which Designed: 1.000 INCHES NOMINAL IN; Seat Angle in Deg: 37.0. 9 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4730-01-070-8344 still in active supply?

NSN 4730-01-070-8344 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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