The Adapter,electrical Conduit, cataloged under National Stock Number 5975-01-059-0253, is classified within Federal Supply Class 5975 (Electrical Hardware and Supplies) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Joslyn Sunbank Company, Llc Dba Joslyn Sunbank Co Llc. Government technical data includes 13 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5975-01-059-0253 |
| Primary Part Number | S1659-25100A-4 |
| Item Name | Adapter,electrical Conduit |
| FSC / FSG | 5975 / 59 — Electrical Hardware and Supplies |
| Manufacturer | Joslyn Sunbank Company, Llc Dba Joslyn Sunbank Co Llc |
| Status | ACTIVE |
| Item Accommodated Trade Size | 1.000 INCHES FIRST END IN |
| Surface Treatment Document and Classification | QQ-P-416,TYPE II,CLASS 3 FED SPEC 1ST TREATMENT RESPONSE AND S1659 MFR REF 2ND TREATMENT RESPONSE |
| Material Document and Classification | QQ-A-225 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-591 FED SPEC SINGLE MATERIAL RESPONSE |
| Outside Diameter | 1.875 INCHES NOMINAL SECOND END IN |
| Nominal Thread Size | 1.312 INCHES SECOND END IN |
| Surface Treatment | CADMIUM AND PAINT |
| Conduit Type Accommodated | FLEXIBLE NONMETALLIC FIRST END |
| Thread Class | 2B SECOND END |
| Material | ALUMINUM ALLOY |
| Thread Series Designator | UNEF SECOND END |
| Furnished Items | TAPER PINS AND EYELET AND SCREW AND SLEEVE |
| End Type | INTERNAL THREAD SECOND END |
| End Type | CONVOLUTED FIRST END |
| 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 |
|---|---|
| S1659-25100A-4 PRIMARY | Joslyn Sunbank Company, Llc Dba Joslyn Sunbank Co Llc (USA) |
| Reference | Meaning |
|---|---|
| GA801BF1P9C | 7/2 Vendor item drawing reference Northrop Grumman Systems Corporation |
NSN 5975-01-059-0253 is a Adapter,electrical Conduit, manufactured by Joslyn Sunbank Company, Llc Dba Joslyn Sunbank Co Llc, classified under FSC 5975, Electrical Hardware and Supplies. Status: active.
NSN 5975-01-059-0253 has 1 manufacturer part number on file: S1659-25100A-4 (Joslyn Sunbank Company, Llc Dba Joslyn Sunbank Co Llc).
Key specifications for S1659-25100A-4: Item Accommodated Trade Size: 1.000 INCHES FIRST END IN; Surface Treatment Document and Classification: QQ-P-416,TYPE II,CLASS 3 FED SPEC 1ST TREATMENT RESPONSE AND S1659 MFR REF 2ND TREATMENT RESPONSE; Material Document and Classification: QQ-A-225 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-591 FED SPEC SINGLE MATERIAL RESPONSE; Overall Length: 4.500 INCHES NOMINAL IN. 13 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.