The Clamp,block, cataloged under National Stock Number 5340-01-540-1256, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Tandemloc Inc. The record lists 3 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 | 5340-01-540-1256 |
| Primary Part Number | 12443391 |
| Item Name | Clamp,block |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Tandemloc Inc |
| Status | ACTIVE |
| 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 |
| Part Number | Manufacturer |
|---|---|
| 12443391 PRIMARY | Tandemloc Inc (USA) |
| 12443391 | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| K08A00A-1PA | Tandemloc Inc (USA) |
NSN 5340-01-540-1256 is a Clamp,block, manufactured by Tandemloc Inc, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-540-1256 has 3 manufacturer part numbers on file: 12443391 (Tandemloc Inc), 12443391 (U S Army Tank Automotive Command Amsta-Im-Mm), K08A00A-1PA (Tandemloc Inc).
Key specifications for 12443391: Overall Height: 6.000 INCHES NOMINAL IN; Overall Length: 6.000 INCHES NOMINAL IN; Part Name Assigned by Controlling Agency: VERTICAL, CLAMP; End Item Identification: NSN: 2320-01-530-3843. 0 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.