PartsTable TECHNICAL DATA SHEET
NSN 4730-01-055-7282Government record, cited

Coupling Half, Self-Sealing4730-01-055-7282

NSN 4730-01-055-7282 · NIIN 010557282 · Part number EC250B8
Transdigm Inc Div Adelwiggins Group · FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings · FSG 47 — Pipe, Tubing, Hose, and Fittings · CAGE 79326
Government record, cited
NSN 4730-01-055-7282 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-055-7282. Manufacturer of record part number: EC250B8.
Also searched as  4730-01-055-7282 · 4730010557282 · NIIN 010557282 · 01-055-7282 · FSC 4730 Hose, Pipe, Tube, Lubrication, and Railing Fittings · CAGE 79326 · EC250B8 · 3522 500 26776
Nearby stock numbers  ·
Features
  • Coupling Half,self-Sealing — FSC 4730
  • Connection Style: PLAIN ALL ENDS
  • Connection Type: THREADED INTERNAL PIPE FIRST FLUID END CONNECTION
  • Style Designator: MALE COUPLING HALF
  • Operating Pressure: 500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
  • Nominal Thread Size: 0.500 INCHES ALL ENDS IN
  • Maximum Operating Temp: 275.0 FAHRENHEIT SINGLE RESPONSE DEGF
  • Surface Treatment: PASSIVATE BODY
Identification
  • NSN: 4730-01-055-7282
  • NIIN: 010557282
  • FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
  • FSG: 47 — Pipe, Tubing, Hose, and Fittings
  • Primary part number: EC250B8
  • Manufacturer: Transdigm Inc Div Adelwiggins Group
General Description

The Coupling Half,self-Sealing, cataloged under National Stock Number 4730-01-055-7282, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Transdigm Inc Div Adelwiggins Group. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-055-7282
Primary Part NumberEC250B8
Item NameCoupling Half,self-Sealing
FSC / FSG4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
ManufacturerTransdigm Inc Div Adelwiggins Group
StatusACTIVE
Connection StylePLAIN ALL ENDS
Connection TypeTHREADED INTERNAL PIPE FIRST FLUID END CONNECTION
Style DesignatorMALE COUPLING HALF
Operating Pressure500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Nominal Thread Size0.500 INCHES ALL ENDS IN
Maximum Operating Temp275.0 FAHRENHEIT SINGLE RESPONSE DEGF
Surface TreatmentPASSIVATE BODY
MaterialSTEEL BODY
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
Cross-Reference Index
Part NumberManufacturer
3522 500 26776 Thales Nederland (NLD)
EC250B8 PRIMARY Transdigm Inc Div Adelwiggins Group (USA)
No interchangeability data on file.
Other items in FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4730-00-000-1895
4730-00-000-1895 · Item name not on file
4730-00-000-4289
4730-00-000-4289 · Item name not on file
4730-00-000-4445
4730-00-000-4445 · Item name not on file
4730-00-000-8373
4730-00-000-8373 · Item name not on file
4730-00-000-8897
4730-00-000-8897 · Item name not on file
4730-00-001-0007
4730-00-001-0007 · Item name not on file
4730-00-001-0008
COUPLING,TUBE
4730-00-001-0008
COUPLING,TUBE

Frequently Asked Questions

What is NSN 4730-01-055-7282?

NSN 4730-01-055-7282 is a Coupling Half,self-Sealing, manufactured by Transdigm Inc Div Adelwiggins Group, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.

What part numbers are listed for NSN 4730-01-055-7282?

NSN 4730-01-055-7282 has 2 manufacturer part numbers on file: 3522 500 26776 (Thales Nederland), EC250B8 (Transdigm Inc Div Adelwiggins Group).

What are the specifications of EC250B8?

Key specifications for EC250B8: Connection Style: PLAIN ALL ENDS; Connection Type: THREADED INTERNAL PIPE FIRST FLUID END CONNECTION; Style Designator: MALE COUPLING HALF; Overall Length: 2.493 INCHES NOMINAL IN. 8 specifications are documented in the U.S. Government catalog.

Is NSN 4730-01-055-7282 hazardous material?

No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.

Sources

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.

✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.
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