The Harness,safety,industrial, cataloged under National Stock Number 4240-01-543-5507, is classified within Federal Supply Class 4240 (Safety and Rescue Equipment) of the Fire Fighting, Rescue, and Safety Equipment group. The manufacturer of record is D B Industries, Llc. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4240-01-543-5507 |
| Primary Part Number | 1100840 |
| Item Name | Harness,safety,industrial |
| FSC / FSG | 4240 / 42 — Safety and Rescue Equipment |
| Manufacturer | D B Industries, Llc |
| Status | ACTIVE |
| Test Data Document | ANSI Z359 STANDARD (INCLUDES INDUSTRY OR ASSOCIATION STANDARDS, INDIVIDUAL MANUFACTUREER STANDARDS, ETC.). |
| Material | PLASTIC POLYESTER |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
NSN 4240-01-543-5507 is a Harness,safety,industrial, manufactured by D B Industries, Llc, classified under FSC 4240, Safety and Rescue Equipment. Status: active.
NSN 4240-01-543-5507 has 4 manufacturer part numbers on file: 1100840 (D B Industries, Llc), 1100840 (Sound Safety Products Co., Inc.), DNS950BDU (Frenchcreek Production, Inc.), DNS950BDU (Technical Associates Inc).
1 possible match (shared part number, not a government interchangeability claim): 6130-01-694-9723. Verify interchangeability with system specifications before substitution.
Key specifications for 1100840: Special Features: DORAL D-RING, FRONTAL D-RING, SIDE D-RINGS, TONGUE AND BUCKLE LEG STRAPS, CONFINED SPACE/RESCUE SHOULDER D-RINGS; Test Data Document: ANSI Z359 STANDARD (INCLUDES INDUSTRY OR ASSOCIATION STANDARDS, INDIVIDUAL MANUFACTUREER STANDARDS, ETC.).; Material: PLASTIC POLYESTER. 2 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.