The Strap,wrist Grounding, cataloged under National Stock Number 4240-01-339-8339, is classified within Federal Supply Class 4240 (Safety and Rescue Equipment) of the Fire Fighting, Rescue, and Safety Equipment group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4240-01-339-8339 |
| Item Name | Strap,wrist Grounding |
| FSC / FSG | 4240 / 42 — Safety and Rescue Equipment |
| Status | ACTIVE |
| General Characteristics Item Description | VELCOR WRIST BAND WITH CONDUCTIVE RUBBER STRIP; SNAP-ON BUFFER CONNECTOR; INSULATED FLEXIBLE DOUBLE CONDUCTOR CRIMPED AND SOLDERED CABLE; 270K OHM RESISTOR SOLDERED ON BOTH ENDS WITH ALLIGATOR CLIPS FOR POSITIVE GROUND; CORD LG 4 FEET FT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 2506 | 3/2 Design control — primary reference U.S. Government activity |
| 2506-8-1MEG | 5/2 Secondary reference U.S. Government activity |
NSN 4240-01-339-8339 is a Strap,wrist Grounding, classified under FSC 4240, Safety and Rescue Equipment. Status: active.
Key specifications for 4240-01-339-8339: General Characteristics Item Description: VELCOR WRIST BAND WITH CONDUCTIVE RUBBER STRIP; SNAP-ON BUFFER CONNECTOR; INSULATED FLEXIBLE DOUBLE CONDUCTOR CRIMPED AND SOLDERED CABLE; 270K OHM RESISTOR SOLDERED ON BOTH ENDS WITH ALLIGATOR CLIPS FOR POSITIVE GROUND; CORD LG 4 FEET FT. 1 specification is 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.