NSN 6640-01-421-5603 — this item is cataloged by the U.S. Government under National Stock Number 6640-01-421-5603. Manufacturer of record part number: 818-7A.
Also searched as6640-01-421-5603 ·
6640014215603 ·
NIIN 014215603 ·
01-421-5603 ·
FSC 6640 Laboratory Equipment and Supplies · CAGE 19836 · 818-7A · LLH374303 · NAVY 1993 3211
The Sponge,silicone,sea, cataloged under National Stock Number 6640-01-421-5603, is classified within Federal Supply Class 6640 (Laboratory Equipment and Supplies) of the Instruments and Laboratory Equipment group. The manufacturer of record is Clamco Corporation. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
6640-01-421-5603
Primary Part Number
818-7A
Item Name
Sponge,silicone,sea
FSC / FSG
6640 / 66 — Laboratory Equipment and Supplies
Manufacturer
Clamco Corporation
Status
ACTIVE
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 6640-01-421-5603?
NSN 6640-01-421-5603 is a Sponge,silicone,sea, manufactured by Clamco Corporation, classified under FSC 6640, Laboratory Equipment and Supplies. Status: active.
What part numbers are listed for NSN 6640-01-421-5603?
NSN 6640-01-421-5603 has 1 manufacturer part number on file: 818-7A (Clamco Corporation).
What are the specifications of 818-7A?
Key specifications for 818-7A: Part Name Assigned by Controlling Agency: SPONGE SILICONE SEA. 0 specifications are documented in the U.S. Government catalog.
Is NSN 6640-01-421-5603 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.