The Conduit Outlet, cataloged under National Stock Number 5975-01-307-3989, is classified within Federal Supply Class 5975 (Electrical Hardware and Supplies) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Killark Electric Mfg Co. Government technical data includes 8 specifications, 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5975-01-307-3989 |
| Primary Part Number | OLR-1 |
| Item Name | Conduit Outlet |
| FSC / FSG | 5975 / 59 — Electrical Hardware and Supplies |
| Manufacturer | Killark Electric Mfg Co |
| Status | ACTIVE |
| Mounting Method | THREADED FASTENER WITH WEDGE NUT COVER |
| Cover Opening Width | 0.938 INCHES NOMINAL IN |
| Cover Mounting Surface Type | FLAT |
| Style Designator | OBLONG |
| Cover Opening Length | 3.188 INCHES NOMINAL IN |
| Surface Treatment | ZINC OVERALL |
| Material | IRON ALLOY OVERALL |
| Hazardous Locations/environmental Protection | NOT RATED |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| OLR-1 | Killark Electric Mfg Co (USA) |
| Reference | Meaning |
|---|---|
| LR17 | 3/9 Design control — primary reference Crouse-Hinds Co |
| LR17 FORM 7 | C/1 Advisory reference — outside the item-of-supply concept Crouse-Hinds Co |
| LR50-M | C/1 Advisory reference — outside the item-of-supply concept Appleton Electric Co |
NSN 5975-01-307-3989 is a Conduit Outlet, manufactured by Killark Electric Mfg Co, classified under FSC 5975, Electrical Hardware and Supplies. Status: active.
NSN 5975-01-307-3989 has 1 manufacturer part number on file: OLR-1 (Killark Electric Mfg Co).
1 possible match (shared part number, not a government interchangeability claim): 5315-01-715-0108. Verify interchangeability with system specifications before substitution.
Key specifications for OLR-1: Mounting Method: THREADED FASTENER WITH WEDGE NUT COVER; Cover Opening Width: 0.938 INCHES NOMINAL IN; Cover Mounting Surface Type: FLAT; Style Designator: OBLONG. 8 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.