NSN 3680-01-290-0243 · NIIN 012900243 · Part number CUPREX 1
Foseco Inc Foundry Products Div · FSC 3680 — Foundry Machinery, Related Equipment and Supplies · FSG 36 — Special Industry Machinery · CAGE 56659
Government record, cited
NSN 3680-01-290-0243 — this item is cataloged by the U.S. Government under National Stock Number 3680-01-290-0243. Manufacturer of record part number: CUPREX 1.
Also searched as3680-01-290-0243 ·
3680012900243 ·
NIIN 012900243 ·
01-290-0243 ·
FSC 3680 Foundry Machinery, Related Equipment and Supplies · CAGE 56659 · CUPREX 1
Nearby stock numbers← 3680-01-290-0205 Sieve, Foundry, Electric
·
3680-01-305-9112 →
Features
Flux,casting,foundry — FSC 3680
General Characteristics Item Description: 10 OZ BLOCKS SUPPLIED IN 300 LB FIBRE DRUM; USED AT AN APPLICATION OF 16 OZS PER 100 LBS OF METAL,THE BLOCK SHOULD BE PLACED IN THE BOTTOM OF A HOT CRUCIBLE AND THE CHARGE MATERIALS ADDED ON TOP OF THE BLOCKS; RECOMMENDED FOR RED BRASS,TIN BRONZE,LEADED TIN BRONZE LBS
1 manufacturer part number on file
Manufacturer of record: Foseco Inc Foundry Products Div
Identification
NSN: 3680-01-290-0243
NIIN: 012900243
FSC: 3680 — Foundry Machinery, Related Equipment and Supplies
FSG: 36 — Special Industry Machinery
Primary part number: CUPREX 1
Manufacturer: Foseco Inc Foundry Products Div
General Description
The Flux,casting,foundry, cataloged under National Stock Number 3680-01-290-0243, is classified within Federal Supply Class 3680 (Foundry Machinery, Related Equipment and Supplies) of the Special Industry Machinery group. The manufacturer of record is Foseco Inc Foundry Products Div. 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. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
3680-01-290-0243
Primary Part Number
CUPREX 1
Item Name
Flux,casting,foundry
FSC / FSG
3680 / 36 — Foundry Machinery, Related Equipment and Supplies
Manufacturer
Foseco Inc Foundry Products Div
Status
ACTIVE
General Characteristics Item Description
10 OZ BLOCKS SUPPLIED IN 300 LB FIBRE DRUM; USED AT AN APPLICATION OF 16 OZS PER 100 LBS OF METAL,THE BLOCK SHOULD BE PLACED IN THE BOTTOM OF A HOT CRUCIBLE AND THE CHARGE MATERIALS ADDED ON TOP OF THE BLOCKS; RECOMMENDED FOR RED BRASS,TIN BRONZE,LEADED TIN BRONZE LBS
Other items in FSC 3680 — Foundry Machinery, Related Equipment and Supplies
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3680-00-001-9422
3680-00-001-9422 · Item name not on file
3680-00-018-0827
3680-00-018-0827 · Item name not on file
3680-00-038-3615
SHOT CLASSIFIER
3680-00-043-3619
3680-00-043-3619 · Item name not on file
3680-00-044-2750
3680-00-044-2750 · Item name not on file
3680-00-044-2755
3680-00-044-2755 · Item name not on file
3680-00-050-8608
3680-00-050-8608 · Item name not on file
3680-00-072-0504
3680-00-072-0504 · Item name not on file
Frequently Asked Questions
What is NSN 3680-01-290-0243?
NSN 3680-01-290-0243 is a Flux,casting,foundry, manufactured by Foseco Inc Foundry Products Div, classified under FSC 3680, Foundry Machinery, Related Equipment and Supplies. Status: active.
What part numbers are listed for NSN 3680-01-290-0243?
NSN 3680-01-290-0243 has 1 manufacturer part number on file: CUPREX 1 (Foseco Inc Foundry Products Div).
What are the specifications of CUPREX 1?
Key specifications for CUPREX 1: General Characteristics Item Description: 10 OZ BLOCKS SUPPLIED IN 300 LB FIBRE DRUM; USED AT AN APPLICATION OF 16 OZS PER 100 LBS OF METAL,THE BLOCK SHOULD BE PLACED IN THE BOTTOM OF A HOT CRUCIBLE AND THE CHARGE MATERIALS ADDED ON TOP OF THE BLOCKS; RECOMMENDED FOR RED BRASS,TIN BRONZE,LEADED TIN BRONZE LBS. 1 specification is documented in the U.S. Government catalog.
Is NSN 3680-01-290-0243 hazardous material?
Hazardous per DLA record (HMIC Y). 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.