The Clamp,block,section, cataloged under National Stock Number 5340-01-337-6135, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Rsi Wireless Communications Dba Csa Wireless. Government technical data includes 13 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5340-01-337-6135 |
| Primary Part Number | 251-353-9-001 |
| Item Name | Clamp,block,section |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Rsi Wireless Communications Dba Csa Wireless |
| Status | ACTIVE |
| Mounting Hole Quantity | 22 |
| Clamping Hole Quantity | 11 |
| Distance From End to First Clamping Hole Center | 1.089 INCHES MINIMUM AND 1.099 INCHES MAXIMUM IN |
| Block Height | 0.734 INCHES MINIMUM AND 0.734 INCHES MINIMUM AND 0.766 INCHES MAXIMUM0.766 INCHES MAXIMUM IN |
| Style Designator | RECTANGULAR |
| Mounting Hole Diameter | 0.210 INCHES MINIMUM AND 0.210 INCHES MINIMUM AND 0.216 INCHES MAXIMUM0.216 INCHES MAXIMUM IN |
| Clamping Hole Diameter | 1.000 INCHES MINIMUM AND 1.200 INCHES MAXIMUM SINGLE HOLE IN |
| Distance From Center of Mounting Hole to Edge Along the Width | 0.297 INCHES MINIMUM AND 0.297 INCHES MINIMUM AND 0.328 INCHES MAXIMUM0.328 INCHES MAXIMUM IN |
| Distance From End to First Mounting Hole Center | 0.282 INCHES NOMINAL IN |
| Mounting Facility | UNTHREADED HOLE(S)UNTHREADED HOLE(S) |
| Center to Center Distance Between First and Second Mounting Holes | 1.620 INCHES MINIMUM AND 1.620 INCHES MINIMUM AND 1.630 INCHES MAXIMUM1.630 INCHES MAXIMUM IN |
| Surface Treatment | TIN |
| Material | ALUMINUM ALLOY 6061 OR ALUMINUM ALLOY 356.0 |
| 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 |
|---|---|
| 251-353-9-001 PRIMARY | Rsi Wireless Communications Dba Csa Wireless (USA) |
| Reference | Meaning |
|---|---|
| 11441551-4 | 7/2 Vendor item drawing reference Us Army Aviation and Missile Command |
NSN 5340-01-337-6135 is a Clamp,block,section, manufactured by Rsi Wireless Communications Dba Csa Wireless, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-337-6135 has 1 manufacturer part number on file: 251-353-9-001 (Rsi Wireless Communications Dba Csa Wireless).
Key specifications for 251-353-9-001: Mounting Hole Quantity: 22; Clamping Hole Quantity: 11; Distance From End to First Clamping Hole Center: 1.089 INCHES MINIMUM AND 1.099 INCHES MAXIMUM IN; Block Height: 0.734 INCHES MINIMUM AND 0.734 INCHES MINIMUM AND 0.766 INCHES MAXIMUM0.766 INCHES MAXIMUM IN. 13 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.