The Clamp,block,section, cataloged under National Stock Number 5340-01-371-9820, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Oil States Industries, Inc. Div Special Products Div. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active. Unit of issue: EA.
| Item Name | Clamp,block,section |
| FSC / FSG | 5340 — Hardware, Commercial (FSG 53) |
| Manufacturers | Oil States Industries, Inc. Div Special Products Div (CAGE 18444) |
| Parameter | Value |
|---|---|
| NSN | 5340-01-371-9820 |
| Primary Part Number | ND3959 |
| Item Name | Clamp,block,section |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Oil States Industries, Inc. Div Special Products Div |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| ND3955ITEM2 | Oil States Industries, Inc. Div Special Products Div (USA) |
| ND3959 PRIMARY | Oil States Industries, Inc. Div Special Products Div (USA) |
NSN 5340-01-371-9820 is a Clamp,block,section, manufactured by Oil States Industries, Inc. Div Special Products Div, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-371-9820 has 2 manufacturer part numbers on file: ND3955ITEM2 (Oil States Industries, Inc. Div Special Products Div), ND3959 (Oil States Industries, Inc. Div Special Products Div).
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.