The Belt-Lanyard Assembly, cataloged under National Stock Number 4240-01-272-1811, 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1 specification, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4240-01-272-1811 |
| Item Name | Belt-Lanyard Assembly |
| FSC / FSG | 4240 / 42 — Safety and Rescue Equipment |
| Status | ACTIVE |
| General Characteristics Item Description | TONGUE BUCKLE BELT; 3.000 IN. BODY PAD; ONE POSITIONING D-RING; DYNA-BRAKE W/ADJUSTABLE 0.500 IN. NYLON LANYARD; W/DOUBLE LOCK SNAPHOOK IN |
| 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 |
|---|---|
| 501080 | 5/9 Secondary reference U.S. Government activity |
| 501072 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4240-01-272-1811 is a Belt-Lanyard Assembly, classified under FSC 4240, Safety and Rescue Equipment. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 5365-01-426-0043, 4620-01-434-1475. Verify interchangeability with system specifications before substitution.
Key specifications for 4240-01-272-1811: General Characteristics Item Description: TONGUE BUCKLE BELT; 3.000 IN. BODY PAD; ONE POSITIONING D-RING; DYNA-BRAKE W/ADJUSTABLE 0.500 IN. NYLON LANYARD; W/DOUBLE LOCK SNAPHOOK IN. 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.