The Cleat,tread,safety, cataloged under National Stock Number 4935-01-270-8699, is classified within Federal Supply Class 4935 (Guided Missile Maintenance, Repair, and Checkout Specialized Equipment) of the Maintenance and Repair Shop Equipment group. The manufacturer of record is Industrial Safety Co. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4935-01-270-8699 |
| Primary Part Number | 5539 |
| Item Name | Cleat,tread,safety |
| FSC / FSG | 4935 / 49 — Guided Missile Maintenance, Repair, and Checkout Specialized Equipment |
| Manufacturer | Industrial Safety Co |
| Status | ACTIVE |
| General Characteristics Item Description | HORIZONTAL HANDLING FIXTURE,BALLAST SYSTEM |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | N |
| Part Number | Manufacturer |
|---|---|
| 5539 PRIMARY | Industrial Safety Co (USA) |
| Reference | Meaning |
|---|---|
| 5539 | 3/9 Design control — primary reference Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| 63-05336 | 5/9 Secondary reference Industrial Safety Co |
NSN 4935-01-270-8699 is a Cleat,tread,safety, manufactured by Industrial Safety Co, classified under FSC 4935, Guided Missile Maintenance, Repair, and Checkout Specialized Equipment. Status: active.
NSN 4935-01-270-8699 has 1 manufacturer part number on file: 5539 (Industrial Safety Co).
1 possible match (shared part number, not a government interchangeability claim): 6510-01-558-3443. Verify interchangeability with system specifications before substitution.
Key specifications for 5539: General Characteristics Item Description: HORIZONTAL HANDLING FIXTURE,BALLAST SYSTEM. 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.
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.