NSN 6640-01-591-0657 — this item is cataloged by the U.S. Government under National Stock Number 6640-01-591-0657. Manufacturer of record part number: SI-H512.
Also searched as6640-01-591-0657 ·
6640015910657 ·
NIIN 015910657 ·
01-591-0657 ·
FSC 6640 Laboratory Equipment and Supplies · CAGE 17332 · SI-H512
The Rack,test Tube,laboratory, cataloged under National Stock Number 6640-01-591-0657, is classified within Federal Supply Class 6640 (Laboratory Equipment and Supplies) of the Instruments and Laboratory Equipment group. The manufacturer of record is Scientific Industries Inc. Government technical data includes 3 specifications, 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
6640-01-591-0657
Primary Part Number
SI-H512
Item Name
Rack,test Tube,laboratory
FSC / FSG
6640 / 66 — Laboratory Equipment and Supplies
Manufacturer
Scientific Industries Inc
Status
ACTIVE
Well Quantity
12
Features Provided
CLAMP LOCK
Tier Quantity
1
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
Possible hazard — SDS may be required (DLA HMIC P)
Other items in FSC 6640 — Laboratory Equipment and Supplies
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
6640-00-001-3348
6640-00-001-3348 · Item name not on file
6640-00-001-6670
LID,ANAEROBIC CULTURE APPARATUS
6640-00-001-6868
CONTROLLER,TIME AND TEMPERATURE,
6640-00-001-6871
6640-00-001-6871 · Item name not on file
6640-00-001-8928
6640-00-001-8928 · Item name not on file
6640-00-001-9167
6640-00-001-9167 · Item name not on file
6640-00-001-9168
6640-00-001-9168 · Item name not on file
6640-00-003-4362
6640-00-003-4362 · Item name not on file
Frequently Asked Questions
What is NSN 6640-01-591-0657?
NSN 6640-01-591-0657 is a Rack,test Tube,laboratory, manufactured by Scientific Industries Inc, classified under FSC 6640, Laboratory Equipment and Supplies. Status: active.
What part numbers are listed for NSN 6640-01-591-0657?
NSN 6640-01-591-0657 has 1 manufacturer part number on file: SI-H512 (Scientific Industries Inc).
What are the specifications of SI-H512?
Key specifications for SI-H512: Well Quantity: 12; Features Provided: CLAMP LOCK; Special Features: HOLDS TWELVE 15 ML TUBES HORIZONTALLY; HOLDER SNAPS ON TO ANY VORTEX-GENIE 2 MIXER; Part Name Assigned by Controlling Agency: HORIZONTAL 15ML TUBE HOLDER. 3 specifications are documented in the U.S. Government catalog.
Is NSN 6640-01-591-0657 hazardous material?
Possible hazard — SDS may be required (DLA HMIC P). 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.