The Clamp,block, cataloged under National Stock Number 5342-01-680-2637, is classified within Federal Supply Class 5342 (Hardware, Weapon System) of the Hardware and Abrasives group. The manufacturer of record is Hiab Usa Inc. Government technical data includes 9 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5342-01-680-2637 |
| Primary Part Number | 3840654 |
| Item Name | Clamp,block |
| FSC / FSG | 5342 / 53 — Hardware, Weapon System |
| Manufacturer | Hiab Usa Inc |
| Status | ACTIVE |
| Center to Center Distance Between First and Fourth Clamping Holes | 15.0 MILLIMETERS NOMINAL MM |
| Block Height | 10.0 MILLIMETERS NOMINAL MM |
| Style Designator | RECTANGULAR |
| Center to Center Distance Between First and Third Mounting Holes | 75.0 MILLIMETERS NOMINAL MM |
| Center to Center Distance Between First and Sixth Clamping Holes | 45.0 MILLIMETERS NOMINAL MM |
| Distance From Center of Mounting Hole to Edge Along the Width | 10.0 MILLIMETERS NOMINAL MM |
| Distance From End to First Mounting Hole Center | 7.5 MILLIMETERS NOMINAL MM |
| Center to Center Distance Between First and Fifth Clamping Holes | 30.0 MILLIMETERS NOMINAL MM |
| Material | STEEL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 5342-01-680-2637 is a Clamp,block, manufactured by Hiab Usa Inc, classified under FSC 5342, Hardware, Weapon System. Status: active.
NSN 5342-01-680-2637 has 2 manufacturer part numbers on file: 4466269 (Oshkosh Defense Llc), 3840654 (Hiab Usa Inc).
Key specifications for 3840654: Center to Center Distance Between First and Fourth Clamping Holes: 15.0 MILLIMETERS NOMINAL MM; Block Height: 10.0 MILLIMETERS NOMINAL MM; Style Designator: RECTANGULAR; Overall Length: 90.0 MILLIMETERS NOMINAL MM. 9 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). 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.