The Backshell,electrical Connector, cataloged under National Stock Number 5935-01-137-5337, is classified within Federal Supply Class 5935 (Connectors, Electrical) of the Electrical and Electronic Equipment Components group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 15 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5935-01-137-5337 |
| Primary Part Number | ST5M1501B21 |
| Item Name | Backshell,electrical Connector |
| FSC / FSG | 5935 / 59 — Connectors, Electrical |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 1 THREADED COUPLING |
| Distance From Centerline to Cable End | 1.470 INCHES MAXIMUM IN |
| Body Angle in Deg | 90.0 |
| Distance From Centerline to Connector End | 1.290 INCHES MAXIMUM IN |
| Style Designator | ANGLE TYPE W/CLAMP |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 1.188 INCHES IN |
| Cable Opening Quantity | 1 |
| Size Designation | 21 |
| Surface Treatment | CADMIUM AND CHROMATE |
| Thread Class | 2B |
| Thread Quantity Per Inch | 18 |
| Material | ALUMINUM ALLOY |
| Thread Series Designator | UNEF |
| Cable Opening Diameter | 0.750 INCHES MAXIMUM IN |
| 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 |
|---|---|
| G7056-21NF | Glenair, Inc. (USA) |
| ST5M1501B21 PRIMARY | The Boeing Company Div Defense (USA) |
| 900-513R4120-55 | Electro Adapter Inc (USA) |
| S1844-22R59D | Joslyn Sunbank Company, Llc Dba Joslyn Sunbank Co Llc (USA) |
| Reference | Meaning |
|---|---|
| 905230-2 | 5/9 Secondary reference Lockheed Martin Corp Electronics and Missiles Div |
| 10163558 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 5935-01-137-5337 is a Backshell,electrical Connector, manufactured by The Boeing Company Div Defense, classified under FSC 5935, Connectors, Electrical. Status: active.
NSN 5935-01-137-5337 has 4 manufacturer part numbers on file: G7056-21NF (Glenair, Inc.), ST5M1501B21 (The Boeing Company Div Defense), 900-513R4120-55 (Electro Adapter Inc), S1844-22R59D (Joslyn Sunbank Company, Llc Dba Joslyn Sunbank Co Llc).
Key specifications for ST5M1501B21: Mounting Facility Type and Quantity: 1 THREADED COUPLING; Distance From Centerline to Cable End: 1.470 INCHES MAXIMUM IN; Body Angle in Deg: 90.0; Distance From Centerline to Connector End: 1.290 INCHES MAXIMUM IN. 15 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.