The Clamp,block,section, cataloged under National Stock Number 5340-01-447-4340, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 6 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. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-447-4340 |
| Primary Part Number | GC12L2M5 |
| Item Name | Clamp,block,section |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Mounting Hole Quantity | 2 |
| Clamping Hole Quantity | 5 |
| Material Document and Classification | GRUMMAN STANDARD G+105AU04N, CAGEC 26512 MFR REF SINGLE MATERIAL RESPONSE |
| Mounting Hole Diameter | 0.1900 INCHES MINIMUM AND 0.1960 INCHES MAXIMUM IN |
| Mounting Facility | UNTHREADED HOLE(S) |
| Material | PLASTIC |
| 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 |
|---|---|
| GC12L2M5 PRIMARY | Northrop Grumman Systems Corporation (USA) |
NSN 5340-01-447-4340 is a Clamp,block,section, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-447-4340 has 1 manufacturer part number on file: GC12L2M5 (Northrop Grumman Systems Corporation).
Key specifications for GC12L2M5: Mounting Hole Quantity: 2; Clamping Hole Quantity: 5; Material Document and Classification: GRUMMAN STANDARD G+105AU04N, CAGEC 26512 MFR REF SINGLE MATERIAL RESPONSE; Mounting Hole Diameter: 0.1900 INCHES MINIMUM AND 0.1960 INCHES MAXIMUM IN. 6 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.