The Base Flag Block, cataloged under National Stock Number 3940-01-682-3907, is classified within Federal Supply Class 3940 (Blocks, Tackle, Rigging, and Slings) of the Materials Handling Equipment group. The manufacturer of record is Smith-Berger Marine, Inc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3940-01-682-3907 |
| Primary Part Number | B56263 |
| Item Name | Base Flag Block |
| FSC / FSG | 3940 / 39 — Blocks, Tackle, Rigging, and Slings |
| Manufacturer | Smith-Berger Marine, Inc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| B56263 PRIMARY | Smith-Berger Marine, Inc (USA) |
NSN 3940-01-682-3907 is a Base Flag Block, manufactured by Smith-Berger Marine, Inc, classified under FSC 3940, Blocks, Tackle, Rigging, and Slings. Status: active.
NSN 3940-01-682-3907 has 1 manufacturer part number on file: B56263 (Smith-Berger Marine, Inc).
Key specifications for B56263: End Item Identification: 3940-01-526-5592; BLOCK, TACKLE; MODEL NO 420. 0 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.