PartsTable TECHNICAL DATA SHEET

NSN 4730-00-007-2785Government record, cited

Adapter, Straight, Tube to Boss4730-00-007-2785

NSN 4730-00-007-2785 · NIIN 000072785 · Part number GB15N4A20

Northrop Grumman Systems Corporation · FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings · FSG 47 — Pipe, Tubing, Hose, and Fittings · CAGE 26512

Government record, cited

NSN 4730-00-007-2785 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-007-2785. Manufacturer of record part number: GB15N4A20.

Also searched as 4730-00-007-2785 · 4730000072785 · NIIN 000072785 · 00-007-2785 · FSC 4730 Hose, Pipe, Tube, Lubrication, and Railing Fittings · CAGE 26512 · GB15N4A20 · GB15M4A20

Nearby stock numbers ← 4730-00-007-2304 · 4730-00-007-2786 Adapter, Straight, Tube to Boss →

4730-00-007-2785 — Hose, Pipe, Tube, Lubrication, and Railing Fittings

Features

Adapter,straight,tube to Boss — FSC 4730
Connection Style: BEVELED (TUBE) FIRST END
Connection Style: GASKET SEAL (BOSS) SECOND END
Tubing Wall Nominal Thickness for Which Designed: 0.203 INCHES FIRST END IN
Nominal Overall Length: 0.812 INCHES IN
Material Document and Classification: QQ-A-225/8,T6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Nominal Outside Diameter Tube Accommodated: 2.500 INCHES FIRST END IN
Nominal Thread Size: 0.438 INCHES SECOND END IN

Identification

NSN: 4730-00-007-2785
NIIN: 000072785
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
FSG: 47 — Pipe, Tubing, Hose, and Fittings
Primary part number: GB15N4A20
Manufacturer: Northrop Grumman Systems Corporation

General Description

The Adapter,straight,tube to Boss, cataloged under National Stock Number 4730-00-007-2785, 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 Northrop Grumman Systems Corporation. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4730-00-007-2785
Primary Part Number	GB15N4A20
Item Name	Adapter,straight,tube to Boss
FSC / FSG	4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Manufacturer	Northrop Grumman Systems Corporation
Status	ACTIVE
Connection Style	BEVELED (TUBE) FIRST END
Connection Style	GASKET SEAL (BOSS) SECOND END
Tubing Wall Nominal Thickness for Which Designed	0.203 INCHES FIRST END IN
Nominal Overall Length	0.812 INCHES IN
Material Document and Classification	QQ-A-225/8,T6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Nominal Outside Diameter Tube Accommodated	2.500 INCHES FIRST END IN
Nominal Thread Size	0.438 INCHES SECOND END IN
Thread Class	3B SECOND END
Material	ALUMINUM ALLOY 6061 OVERALL
Thread Series Designator	UNIFIED NATIONAL JOINT FINE (UNJF) SECOND END

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	No hazard code in the DLA record (HMIC N)
Criticality Code	X

Cross-Reference Index

Part Number	Manufacturer
GB15N4A20	Nell-Joy Industries, Inc. (USA)
GB15N4A20 PRIMARY	Northrop Grumman Systems Corporation (USA)
GB15N4A20	Ferrum Industries Inc (USA)

Reference documents

Reference	Meaning
GB15M4A20	5/9 Secondary reference Wade Enterprises

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 4730-00-007-2785?

NSN 4730-00-007-2785 is a Adapter,straight,tube to Boss, manufactured by Northrop Grumman Systems Corporation, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.

What part numbers are listed for NSN 4730-00-007-2785?

NSN 4730-00-007-2785 has 3 manufacturer part numbers on file: GB15N4A20 (Nell-Joy Industries, Inc.), GB15N4A20 (Northrop Grumman Systems Corporation), GB15N4A20 (Ferrum Industries Inc).

What are the specifications of GB15N4A20?

Key specifications for GB15N4A20: Connection Style: BEVELED (TUBE) FIRST END; Connection Style: GASKET SEAL (BOSS) SECOND END; Tubing Wall Nominal Thickness for Which Designed: 0.203 INCHES FIRST END IN; Nominal Overall Length: 0.812 INCHES IN. 10 specifications are documented in the U.S. Government catalog.

Is NSN 4730-00-007-2785 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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