Adapter and Flange Assembly4730-01-668-9726

NSN 4730-01-668-9726 · NIIN 016689726 · Part number RA58

Clark Brothers Instrument Co · FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings · FSG 47 — Pipe, Tubing, Hose, and Fittings · CAGE 65496

Government record, cited

NSN 4730-01-668-9726 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-668-9726. Manufacturer of record part number: RA58.

Also searched as 4730-01-668-9726 · 4730016689726 · NIIN 016689726 · 01-668-9726 · FSC 4730 Hose, Pipe, Tube, Lubrication, and Railing Fittings · CAGE 65496 · RA58

Nearby stock numbers ← 4730-01-668-9646 Adapter, Straight, Pipe to Tube · 4730-01-668-9744 Adapter-Air Starter →

4730-01-668-9726 — Hose, Pipe, Tube, Lubrication, and Railing Fittings

Features

Adapter and Flange Assembly — FSC 4730
1 manufacturer part number on file
Manufacturer of record: Clark Brothers Instrument Co

Identification

NSN: 4730-01-668-9726
NIIN: 016689726
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
FSG: 47 — Pipe, Tubing, Hose, and Fittings
Primary part number: RA58
Manufacturer: Clark Brothers Instrument Co

General Description

The Adapter and Flange Assembly, cataloged under National Stock Number 4730-01-668-9726, 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 Clark Brothers Instrument Co. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.

Catalog Facts

Item Name	Adapter and Flange Assembly
FSC / FSG	4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings (FSG 47)
Manufacturers	Clark Brothers Instrument Co (CAGE 65496)

Technical Specifications

Parameter	Value
NSN	4730-01-668-9726
Primary Part Number	RA58
Item Name	Adapter and Flange Assembly
FSC / FSG	4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Manufacturer	Clark Brothers Instrument Co
Status	ACTIVE

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 1

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

6635-01-672-6393RA-5/8 POSSIBLE MATCH

PROBE,EDDY CURRENT

Possible match (shared part number)Staveley Instruments

Cross-Reference Index

Part Number	Manufacturer
RA58 PRIMARY	Clark Brothers Instrument Co (USA)

Related Parts

6635-01-672-6393POSSIBLE MATCH

PROBE,EDDY CURRENT

RA-5/8

Frequently Asked Questions

What is NSN 4730-01-668-9726?

NSN 4730-01-668-9726 is a Adapter and Flange Assembly, manufactured by Clark Brothers Instrument Co, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.

What part numbers are listed for NSN 4730-01-668-9726?

NSN 4730-01-668-9726 has 1 manufacturer part number on file: RA58 (Clark Brothers Instrument Co).

What NSN replaces 4730-01-668-9726?

1 possible match (shared part number, not a government interchangeability claim): 6635-01-672-6393. Verify interchangeability with system specifications before substitution.

Is NSN 4730-01-668-9726 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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