The Fairlead,roller and Sheave, cataloged under National Stock Number 3815-00-554-0126, is classified within Federal Supply Class 3815 (Crane and Crane-shovel Attachments) of the Construction, Mining, Excavating Equipment group. Government technical data includes 20 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 3815-00-554-0126 |
| Item Name | Fairlead,roller and Sheave |
| FSC / FSG | 3815 / 38 — Crane and Crane-shovel Attachments |
| Status | ACTIVE |
| Mounting Hole Quantity | 8 LOCATION NOT OTHERWISE SPECIFIED |
| Wire Rope Accommodated Diameter | 0.750 INCHES IN |
| Usage Design | GENERAL |
| Design Type | RIGID |
| Sheave Mounting Position | VERTICAL |
| Sheave Outside Diameter | 12.995 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN |
| Mounting Hole Diameter | 1.062 INCHES NOMINAL IN |
| Roller Outside Diameter | 4.500 INCHES NOMINAL IN |
| Base Width | 15.000 INCHES NOMINAL IN |
| Line Quantity Accommodated | 1 |
| Departure From Cited Document | AS MODIFIED BY PARAGRAPH 3.5 FAIRLEAD |
| Roller Quantity | 2 |
| Base Length | 28.750 INCHES NOMINAL IN |
| Roller Mounting Position | VERTICAL |
| Bearing Type | SLEEVE |
| Sheave Quantity | 2 LOCATION NOT OTHERWISE SPECIFIED |
| Material | COPPER ALLOY SLEEVE |
| Material | STEEL ROLLER |
| Material | STEEL FRAME |
| Cable Opening Diameter | 1.000 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | N |
| Reference | Meaning |
|---|---|
| 13217E6261 | 3/2 Design control — primary reference U.S. Government activity |
| D10706-15A | 5/2 Secondary reference U.S. Government activity |
| MILB52203 | 4/1 Identification reference U.S. Government activity |
NSN 3815-00-554-0126 is a Fairlead,roller and Sheave, classified under FSC 3815, Crane and Crane-shovel Attachments. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 3815-00-752-9021, 3815-00-996-7124. Verify interchangeability with system specifications before substitution.
Key specifications for 3815-00-554-0126: Mounting Hole Quantity: 8 LOCATION NOT OTHERWISE SPECIFIED; Overall Height: 22.562 INCHES NOMINAL IN; Wire Rope Accommodated Diameter: 0.750 INCHES IN; Usage Design: GENERAL. 20 specifications are 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.