The Belt,safety,industrial, cataloged under National Stock Number 4240-01-687-1863, 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 Misty Mountain Threadworks, Inc. Dba Misty Mountain Threadworks Inc. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4240-01-687-1863 |
| Primary Part Number | 5553-SM-CB |
| Item Name | Belt,safety,industrial |
| FSC / FSG | 4240 / 42 — Safety and Rescue Equipment |
| Manufacturer | Misty Mountain Threadworks, Inc. Dba Misty Mountain Threadworks Inc |
| Status | ACTIVE |
| Style Designator | LINEMANS TYPE |
| Body Belt Width | 1.75 INCHES NOMINAL IN |
| Waist Size | SMALL |
| Cushion Pad Width | 1.50 INCHES NOMINAL IN |
| Accessory Components and Quantity | 1-BELT AND 1-LOAD RATED HARNESS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 5553-SM-CB PRIMARY | Misty Mountain Threadworks, Inc. Dba Misty Mountain Threadworks Inc (USA) |
| 159264 | Southern Cross Equipment Pty Ltd (AUS) |
NSN 4240-01-687-1863 is a Belt,safety,industrial, manufactured by Misty Mountain Threadworks, Inc. Dba Misty Mountain Threadworks Inc, classified under FSC 4240, Safety and Rescue Equipment. Status: active.
NSN 4240-01-687-1863 has 2 manufacturer part numbers on file: 5553-SM-CB (Misty Mountain Threadworks, Inc. Dba Misty Mountain Threadworks Inc), 159264 (Southern Cross Equipment Pty Ltd).
Key specifications for 5553-SM-CB: Style Designator: LINEMANS TYPE; Body Belt Width: 1.75 INCHES NOMINAL IN; Waist Size: SMALL; Cushion Pad Width: 1.50 INCHES NOMINAL IN. 5 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.