PartsTable TECHNICAL DATA SHEET

NSN 3441-01-168-7668Government record, cited

Tube Expander3441-01-168-7668

NSN 3441-01-168-7668 · NIIN 011687668 · Part number 58-18 EXP

Graham Corp · FSC 3441 — Bending and Forming Machines · FSG 34 — Metalworking Machinery (continued) · CAGE 1LCX3

Government record, cited

NSN 3441-01-168-7668 — this item is cataloged by the U.S. Government under National Stock Number 3441-01-168-7668. Manufacturer of record part number: 58-18 EXP.

Also searched as 3441-01-168-7668 · 3441011687668 · NIIN 011687668 · 01-168-7668 · FSC 3441 Bending and Forming Machines · CAGE 1LCX3 · 58-18 EXP

Nearby stock numbers ← 3441-01-168-1600 Forming Machine, Sheet Metal, Brak · 3441-01-170-2255 Tool Flange →

Features

Tube Expander — FSC 3441
General Characteristics Item Description: 5/8 IN. IN
1 manufacturer part number on file
Manufacturer of record: Graham Corp

Identification

NSN: 3441-01-168-7668
NIIN: 011687668
FSC: 3441 — Bending and Forming Machines
FSG: 34 — Metalworking Machinery (continued)
Primary part number: 58-18 EXP
Manufacturer: Graham Corp

General Description

The Tube Expander, cataloged under National Stock Number 3441-01-168-7668, is classified within Federal Supply Class 3441 (Bending and Forming Machines) of the Metalworking Machinery (continued) group. The manufacturer of record is Graham Corp. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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	3441-01-168-7668
Primary Part Number	58-18 EXP
Item Name	Tube Expander
FSC / FSG	3441 / 34 — Bending and Forming Machines
Manufacturer	Graham Corp
Status	ACTIVE
General Characteristics Item Description	5/8 IN. IN

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
58-18 EXP PRIMARY	Graham Corp (USA)

Reference documents

Reference	Meaning
58-18 EXP	5/9 Secondary reference Graham Mfg Co Inc for Procurement Use CAGE Code 1lcx3

No interchangeability data on file.

Other items in FSC 3441 — Bending and Forming Machines

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

3441-00-001-1279

BENDING MACHINE,PIPE AND CONDUIT

3441-00-006-1662

3441-00-006-1662 · Item name not on file

3441-00-009-2848

FORMING MACHINE,SHEET METAL,SLIP

3441-00-024-0193

3441-00-024-0193 · Item name not on file

3441-00-028-3605

FORMING MACHINE,SHEET METAL,BRAK

3441-00-033-7572

3441-00-033-7572 · Item name not on file

3441-00-033-7573

3441-00-033-7573 · Item name not on file

3441-00-033-7574

3441-00-033-7574 · Item name not on file

Frequently Asked Questions

What is NSN 3441-01-168-7668?

NSN 3441-01-168-7668 is a Tube Expander, manufactured by Graham Corp, classified under FSC 3441, Bending and Forming Machines. Status: active.

What part numbers are listed for NSN 3441-01-168-7668?

NSN 3441-01-168-7668 has 1 manufacturer part number on file: 58-18 EXP (Graham Corp).

What are the specifications of 58-18 EXP?

Key specifications for 58-18 EXP: General Characteristics Item Description: 5/8 IN. IN. 1 specification is documented in the U.S. Government catalog.

Is NSN 3441-01-168-7668 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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