The Coupling,driven, cataloged under National Stock Number 4520-01-072-8349, is classified within Federal Supply Class 4520 (Space and Water Heating Equipment) of the Plumbing, Heating, and Waste Disposal group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4520-01-072-8349 |
| Item Name | Coupling,driven |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Status | ACTIVE |
| General Characteristics Item Description | NYLON FABRIC WITH GOODYEAR COUMPOUND 31-50-SCOR; OPERATING TEMP MINUS 65 DEG FAHRENHEIT TO 130 DEG FAHRENHEIT; 6.000 IN. O/A DIA; THREE BOLT HOLES 0.500 IN. DIA SPACED ON 4.812 IN. BOLT CIRCLE; 0.500 IN. THK; 1.000 IN. SQUARE HOLE THRU CENTER OF COUPLING IN |
| 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 |
|---|---|
| 68659 | 3/9 Design control — primary reference Davey Compressor Co Div of Keco Industries Inc |
| 68659 | 3/2 Design control — primary reference U.S. Government activity |
| 68659 | 5/9 Secondary reference Drs Environmental Systems Inc |
NSN 4520-01-072-8349 is a Coupling,driven, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5210-01-259-6010. Verify interchangeability with system specifications before substitution.
Key specifications for 4520-01-072-8349: General Characteristics Item Description: NYLON FABRIC WITH GOODYEAR COUMPOUND 31-50-SCOR; OPERATING TEMP MINUS 65 DEG FAHRENHEIT TO 130 DEG FAHRENHEIT; 6.000 IN. O/A DIA; THREE BOLT HOLES 0.500 IN. DIA SPACED ON 4.812 IN. BOLT CIRCLE; 0.500 IN. THK; 1.000 IN. SQUARE HOLE THRU CENTER OF COUPLING IN. 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.