The Clamp,block,section, cataloged under National Stock Number 5340-01-400-0481, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 14 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 | 5340-01-400-0481 |
| Primary Part Number | 5267848 |
| Item Name | Clamp,block,section |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Mounting Hole Quantity | 22 |
| Clamping Hole Quantity | 99 |
| Distance From End to First Clamping Hole Center | 1.440 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | MIL-A-8625 TY3 CL2 MIL SPEC SINGLE TREATMENT RESPONSE |
| Block Height | 1.000 INCHES NOMINAL1.000 INCHES NOMINAL IN |
| Style Designator | RECTANGULAR |
| Material Document and Classification | QQ-A-250/8 FED SPEC SINGLE MATERIAL RESPONSE |
| Mounting Hole Diameter | 0.281 INCHES NOMINAL0.281 INCHES NOMINAL IN |
| Clamping Hole Diameter | 0.440 INCHES NOMINAL ALL HOLES 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 | 0.310 INCHES NOMINAL IN |
| Mounting Facility | UNTHREADED HOLE(S)UNTHREADED HOLE(S) |
| Surface Treatment | ANODIZE |
| Material | ALUMINUM ALLOY 6061 |
| 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 |
|---|---|
| 5267848 PRIMARY | Naval Sea Systems Command (USA) |
NSN 5340-01-400-0481 is a Clamp,block,section, manufactured by Naval Sea Systems Command, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-400-0481 has 1 manufacturer part number on file: 5267848 (Naval Sea Systems Command).
Key specifications for 5267848: Mounting Hole Quantity: 22; Clamping Hole Quantity: 99; Distance From End to First Clamping Hole Center: 1.440 INCHES NOMINAL IN; Surface Treatment Document and Classification: MIL-A-8625 TY3 CL2 MIL SPEC SINGLE TREATMENT RESPONSE. 14 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.