The Conduit,metal,rigid, cataloged under National Stock Number 5975-01-032-4640, is classified within Federal Supply Class 5975 (Electrical Hardware and Supplies) of the Electrical and Electronic Equipment Components group. Government technical data includes 10 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5975-01-032-4640 |
| Item Name | Conduit,metal,rigid |
| FSC / FSG | 5975 / 59 — Electrical Hardware and Supplies |
| Status | ACTIVE |
| Length | 120.000 INCHES NOMINAL IN |
| Structural Design | THICKWALL |
| Thread Length | 1.680 INCHES NOMINAL BOTH ENDS IN |
| Style Designator | CONDUIT W/COUPLING |
| Outside Diameter | 3.971 INCHES NOMINAL IN |
| Inside Diameter | 3.711 INCHES NOMINAL IN |
| Surface Treatment | ENAMEL OR ZINC OVERALL |
| Trade Size | 3.500 |
| Material | STEEL OVERALL |
| Thread Series Designator | NPT BOTH ENDS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| WW-C-581 | 5/9 Secondary reference U.S. Government activity |
| UL 1242 | 3/1 Design control — primary reference U.S. Government activity |
| 3 1/2IN. SIZE IMC | 5/9 Secondary reference Ltv Steel Co Inc |
NSN 5975-01-032-4640 is a Conduit,metal,rigid, classified under FSC 5975, Electrical Hardware and Supplies. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5975-01-032-4641. Verify interchangeability with system specifications before substitution.
Key specifications for 5975-01-032-4640: Length: 120.000 INCHES NOMINAL IN; Structural Design: THICKWALL; Thread Length: 1.680 INCHES NOMINAL BOTH ENDS IN; Style Designator: CONDUIT W/COUPLING. 10 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.