The Packing Nut,stuffing Tube, cataloged under National Stock Number 5975-00-642-8523, is classified within Federal Supply Class 5975 (Electrical Hardware and Supplies) of the Electrical and Electronic Equipment Components group. The manufacturer of record is L3harris Technologies, Inc. Dba Harris Corporation. Government technical data includes 6 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5975-00-642-8523 |
| Primary Part Number | GB2021-2 |
| Item Name | Packing Nut,stuffing Tube |
| FSC / FSG | 5975 / 59 — Electrical Hardware and Supplies |
| Manufacturer | L3harris Technologies, Inc. Dba Harris Corporation |
| Status | ACTIVE |
| Width Across Flats | 0.438 INCHES NOMINAL IN |
| Thread Length | 0.250 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | ZINC OVERALL |
| Bore Diameter | 0.268 INCHES NOMINAL IN |
| Material | STEEL OVERALL |
| 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 |
|---|---|
| GB2021-2 | L3harris Technologies, Inc. Dba Harris Corporation (USA) |
| Reference | Meaning |
|---|---|
| SCB42387 | 5/1 Secondary reference U.S. Government activity |
| GB2021-2 | 3/9 Design control — primary reference Itt Industries Inc Itt Aerospace Communications Div East |
NSN 5975-00-642-8523 is a Packing Nut,stuffing Tube, manufactured by L3harris Technologies, Inc. Dba Harris Corporation, classified under FSC 5975, Electrical Hardware and Supplies. Status: active.
NSN 5975-00-642-8523 has 1 manufacturer part number on file: GB2021-2 (L3harris Technologies, Inc. Dba Harris Corporation).
Key specifications for GB2021-2: Width Across Flats: 0.438 INCHES NOMINAL IN; Thread Length: 0.250 INCHES NOMINAL IN; Overall Length: 0.469 INCHES NOMINAL IN; Thread Direction: RIGHT-HAND. 6 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.