The Stop,towbar Assembly, cataloged under National Stock Number 1740-01-256-7435, is classified within Federal Supply Class 1740 (Airfield Specialized Trucks and Trailers) of the Aircraft Launch, Landing, and Ground Handling Equipment group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1740-01-256-7435 |
| Primary Part Number | 75D111253-2019 |
| Item Name | Stop,towbar Assembly |
| FSC / FSG | 1740 / 17 — Airfield Specialized Trucks and Trailers |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| General Characteristics Item Description | STEEL PER MIL-S-6758,COND D3; C-SHAPE 1.648 IN. O/A LG; 0.375 IN. THK IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 75D111253-2019 PRIMARY | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| 75D111253-2019 | 5/2 Secondary reference U.S. Government activity |
| 75D111253-2019 | C/1 Advisory reference — outside the item-of-supply concept Seyer Industries, Inc. Dba Seyer Industries Inc |
NSN 1740-01-256-7435 is a Stop,towbar Assembly, manufactured by The Boeing Company Div Defense, classified under FSC 1740, Airfield Specialized Trucks and Trailers. Status: active.
NSN 1740-01-256-7435 has 1 manufacturer part number on file: 75D111253-2019 (The Boeing Company Div Defense).
Key specifications for 75D111253-2019: General Characteristics Item Description: STEEL PER MIL-S-6758,COND D3; C-SHAPE 1.648 IN. O/A LG; 0.375 IN. THK IN; End Item Identification: GROUND SUPPORT EQUIPMENT AV-8 AIRCRAFT. 1 specification is 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.
NSN 1740-01-256-7435 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.