The Clamp,block, cataloged under National Stock Number 5340-01-249-4337, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. Government technical data includes 17 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-249-4337 |
| Item Name | Clamp,block |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Status | ACTIVE |
| Mounting Hole Quantity | 22 |
| Clamping Hole Quantity | 33 |
| Distance From End to First Clamping Hole Center | 0.570 INCHES NOMINAL IN |
| Block Height | 0.520 INCHES NOMINAL0.520 INCHES NOMINAL IN |
| Style Designator | RECTANGULAR |
| Material Document and Classification | MIL-P-15035,TY FBM MIL SPEC SINGLE MATERIAL RESPONSE |
| Mounting Hole Diameter | 0.220 INCHES MINIMUM AND 0.220 INCHES MINIMUM AND 0.233 INCHES MAXIMUM0.233 INCHES MAXIMUM IN |
| Clamping Hole Diameter | 0.327 INCHES MINIMUM AND 0.334 INCHES MAXIMUM SECOND HOLE IN |
| Clamping Hole Diameter | 0.452 INCHES MINIMUM AND 0.459 INCHES MAXIMUM FIRST HOLE IN |
| Clamping Hole Diameter | 0.452 INCHES MINIMUM AND 0.459 INCHES MAXIMUM THIRD HOLE IN |
| Center to Center Distance Between First and Third Clamping Holes | 3.300 INCHES NOMINAL IN |
| Distance From Center of Mounting Hole to Edge Along the Width | 0.500 INCHES NOMINAL0.500 INCHES NOMINAL IN |
| Distance From End to First Mounting Hole Center | 1.220 INCHES NOMINAL IN |
| Mounting Facility | UNTHREADED HOLE(S)UNTHREADED HOLE(S) |
| Center to Center Distance Between First and Second Mounting Holes | 2.000 INCHES NOMINAL2.000 INCHES NOMINAL IN |
| Material | PLASTIC PHENOLIC AND COTTON |
| Center to Center Distance Between First and Second Clamping Holes | 1.210 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 |
| Reference | Meaning |
|---|---|
| 962379-105 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5340-01-249-4337 is a Clamp,block, classified under FSC 5340, Hardware, Commercial. Status: active.
Key specifications for 5340-01-249-4337: Mounting Hole Quantity: 22; Overall Height: 1.040 INCHES NOMINAL1.040 INCHES NOMINAL IN; Clamping Hole Quantity: 33; Distance From End to First Clamping Hole Center: 0.570 INCHES NOMINAL IN. 17 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.