PartsTable TECHNICAL DATA SHEET

NSN 4730-00-722-3577Government record, cited

Adapter, Straight, Pipe to Tube4730-00-722-3577

NSN 4730-00-722-3577 · NIIN 007223577 · Part number W1126

Mueller Brass Co. · FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings · FSG 47 — Pipe, Tubing, Hose, and Fittings · CAGE 41947

Government record, cited

NSN 4730-00-722-3577 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-722-3577. Manufacturer of record part number: W1126.

Also searched as 4730-00-722-3577 · 4730007223577 · NIIN 007223577 · 00-722-3577 · FSC 4730 Hose, Pipe, Tube, Lubrication, and Railing Fittings · CAGE 41947 · W1126 · 5001-48

Nearby stock numbers ← 4730-00-722-3576 Adapter, Straight, Pipe to Tube · 4730-00-722-3578 →

4730-00-722-3577 — Hose, Pipe, Tube, Lubrication, and Railing Fittings

Features

Adapter,straight,pipe to Tube — FSC 4730
Nominal Pipe Size Accommodated: 0.250 INCHES SECOND END IN
Connection Style: SOCKET (TUBE) FIRST END
Connection Style: PLAIN (PIPE) SECOND END
Nominal Overall Length: 1.000 INCHES IN
Connection Type: UNTHREADED INTERNAL TUBE FIRST END
Connection Type: THREADED EXTERNAL PIPE SECOND END
Nominal Outside Diameter Tube Accommodated: 0.500 INCHES FIRST END IN

Identification

NSN: 4730-00-722-3577
NIIN: 007223577
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
FSG: 47 — Pipe, Tubing, Hose, and Fittings
Primary part number: W1126
Manufacturer: Mueller Brass Co.

General Description

The Adapter,straight,pipe to Tube, cataloged under National Stock Number 4730-00-722-3577, 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 Mueller Brass Co.. Government technical data includes 10 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. 5 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4730-00-722-3577
Primary Part Number	W1126
Item Name	Adapter,straight,pipe to Tube
FSC / FSG	4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Manufacturer	Mueller Brass Co.
Status	ACTIVE
Nominal Pipe Size Accommodated	0.250 INCHES SECOND END IN
Connection Style	SOCKET (TUBE) FIRST END
Connection Style	PLAIN (PIPE) SECOND END
Nominal Overall Length	1.000 INCHES IN
Connection Type	UNTHREADED INTERNAL TUBE FIRST END
Connection Type	THREADED EXTERNAL PIPE SECOND END
Nominal Outside Diameter Tube Accommodated	0.500 INCHES FIRST END IN
Nominal Thread Size	0.250 INCHES SECOND END IN
Material	COPPER OVERALL
Thread Series Designator	NPT 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

⇄ Related Items 5

Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.

5305-01-039-22085001-4-8 POSSIBLE MATCH

SCREW,MACHINE

Possible match (shared part number)L3harris Technologies, Inc. Div Space and Airborne Systems

1560-01-039-578710-60031-48 POSSIBLE MATCH

DOOR,ACCESS,AIRCRAFT

Possible match (shared part number)The Boeing Company Div Defense

5945-01-186-0809W1126 POSSIBLE MATCH

SOLENOID,ELECTRICAL

Possible match (shared part number)G.w. Lisk Co, Inc Div G.w. Lisk Company, Inc.

4140-01-486-4720500-222 POSSIBLE MATCH

FAN,CIRCULATING

Possible match (shared part number)Bae Systems Tactical Vehicle Systems Lp Dba Data Systems International Inc

3460-01-602-2960462510-07 POSSIBLE MATCH

HOLDER,CUTTING TOOL

Possible match (shared part number)Tube Form Solutions, Llc Dba Eaton Leonard Tooling

Cross-Reference Index

Part Number	Manufacturer
5001-48	Raytheon Company Div Rmd Strategic (USA)
W1126 PRIMARY	Mueller Brass Co. (USA)

Related Parts

5305-01-039-2208POSSIBLE MATCH

SCREW,MACHINE

5001-4-8

1560-01-039-5787POSSIBLE MATCH

DOOR,ACCESS,AIRCRAFT

10-60031-48

5945-01-186-0809POSSIBLE MATCH

SOLENOID,ELECTRICAL

W1126

4140-01-486-4720POSSIBLE MATCH

FAN,CIRCULATING

500-222

3460-01-602-2960POSSIBLE MATCH

HOLDER,CUTTING TOOL

462510-07

Frequently Asked Questions

What is NSN 4730-00-722-3577?

NSN 4730-00-722-3577 is a Adapter,straight,pipe to Tube, manufactured by Mueller Brass Co., classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.

What part numbers are listed for NSN 4730-00-722-3577?

NSN 4730-00-722-3577 has 2 manufacturer part numbers on file: 5001-48 (Raytheon Company Div Rmd Strategic), W1126 (Mueller Brass Co.).

What NSN replaces 4730-00-722-3577?

5 possible matches (shared part number, not a government interchangeability claim): 5305-01-039-2208, 1560-01-039-5787, 5945-01-186-0809. Verify interchangeability with system specifications before substitution.

What are the specifications of W1126?

Key specifications for W1126: Nominal Pipe Size Accommodated: 0.250 INCHES SECOND END IN; Connection Style: SOCKET (TUBE) FIRST END; Connection Style: PLAIN (PIPE) SECOND END; Nominal Overall Length: 1.000 INCHES IN. 10 specifications are documented in the U.S. Government catalog.

Is NSN 4730-00-722-3577 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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