The Tensioner Pulley Assembly, cataloged under National Stock Number 3950-01-522-9522, is classified within Federal Supply Class 3950 (Winches, Hoists, Cranes, and Derricks) of the Materials Handling Equipment group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3950-01-522-9522 |
| Item Name | Tensioner Pulley Assembly |
| FSC / FSG | 3950 / 39 — Winches, Hoists, Cranes, and Derricks |
| Status | ACTIVE |
| Material | COPPER ALLOY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| LE121N-XS SHT4 FN-3 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 301137-2 | 3/9 Design control — primary reference Tri-Tec Manufacturing, Llc |
| 301137-2 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| LE121N-XS SHT4 FN-3 | 5/9 Secondary reference Tri-Tec Manufacturing, Llc |
NSN 3950-01-522-9522 is a Tensioner Pulley Assembly, classified under FSC 3950, Winches, Hoists, Cranes, and Derricks. Status: active.
Key specifications for 3950-01-522-9522: Special Features: SPECIFICATION; ASTM-B-584, COVER; Part Name Assigned by Controlling Agency: TENSIONER, BELT; End Item Identification: ACTUATOR VALVE; Material: COPPER ALLOY. 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.