The Anode,corrosion Preventive, cataloged under National Stock Number 5340-01-723-3351, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Caldwell Casting Co., Inc.. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-723-3351 |
| Primary Part Number | T-21A |
| Item Name | Anode,corrosion Preventive |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Caldwell Casting Co., Inc. |
| Status | ACTIVE |
| Length | 5.00 INCHES NOMINAL IN |
| Style Designator | TEARDROP TYPE WITH STRAP CORE |
| Center to Center Distance Between Holes | 1.60 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Unit of Issue | EA |
NSN 5340-01-723-3351 is a Anode,corrosion Preventive, manufactured by Caldwell Casting Co., Inc., classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-723-3351 has 2 manufacturer part numbers on file: T-21A (Cmp Group Ltd), T-21A (Caldwell Casting Co., Inc.).
Key specifications for T-21A: Length: 5.00 INCHES NOMINAL IN; Style Designator: TEARDROP TYPE WITH STRAP CORE; Weight: 0.25 POUNDS LBS; Center to Center Distance Between Holes: 1.60 INCHES NOMINAL IN. 3 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
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.