The Roller,roller Fairlead, cataloged under National Stock Number 3815-01-339-0470, is classified within Federal Supply Class 3815 (Crane and Crane-shovel Attachments) of the Construction, Mining, Excavating Equipment group. The manufacturer of record is Deere & Company Dba Deere John 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3815-01-339-0470 |
| Primary Part Number | AT186521 |
| Item Name | Roller,roller Fairlead |
| FSC / FSG | 3815 / 38 — Crane and Crane-shovel Attachments |
| Manufacturer | Deere & Company Dba Deere John Co |
| Status | ACTIVE |
| General Characteristics Item Description | STEEL; SINGLE-FLANGED TRACK ROLLER IN THE UNDER CARRIAGE OF A CRAWLER EXCAVATOR; NINE PER SIDE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| AT186521 PRIMARY | Deere & Company Dba Deere John Co (USA) |
| Reference | Meaning |
|---|---|
| AT38206 | 5/9 Secondary reference Deere & Company Dba Deere John Co |
| AT38206 | 5/9 Secondary reference Deere & Co |
NSN 3815-01-339-0470 is a Roller,roller Fairlead, manufactured by Deere & Company Dba Deere John Co, classified under FSC 3815, Crane and Crane-shovel Attachments. Status: active.
NSN 3815-01-339-0470 has 1 manufacturer part number on file: AT186521 (Deere & Company Dba Deere John Co).
Key specifications for AT186521: General Characteristics Item Description: STEEL; SINGLE-FLANGED TRACK ROLLER IN THE UNDER CARRIAGE OF A CRAWLER EXCAVATOR; NINE PER SIDE; End Item Identification: EXCAVATOR,FELLER BUNCHER,JOHN DEERE CO,MODEL 690B,C,D AND 693B,C,D. 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.