The Base,chassis, cataloged under National Stock Number 5975-00-446-7875, 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 Corp Div Antenna Products. Government technical data includes 4 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through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5975-00-446-7875 |
| Primary Part Number | 21928 |
| Item Name | Base,chassis |
| FSC / FSG | 5975 / 59 — Electrical Hardware and Supplies |
| Manufacturer | L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products |
| Status | ACTIVE |
| FSC Application Data | MISCELLANEOUS COMMUNICATIONS EQUIPMENT |
| Supporting Object/surface Attachment Method | ITEM HELD IN PLACE BY BRACKET ARM |
| Attachment to Item Supported Method | ITEM HELD IN PLACE BY MTG HOLES |
| Material | STEEL |
| 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 |
|---|---|
| 21928 | L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products (USA) |
| 1917-1001 | Rodale Electronics Inc. Dba Rodale Wireless (USA) |
| 2192953 | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| 2192953 | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
| Reference | Meaning |
|---|---|
| 90127-7 | 5/9 Secondary reference Hutchinson Aerospace & Industry, Inc. |
| MT-2740/DRW-29 | 5/2 Secondary reference U.S. Government activity |
| 90127-7 | 5/9 Secondary reference Barry Controls Ltd |
| 520-3 | 5/9 Secondary reference U.S. Government activity |
| 90127-7 | C/1 Advisory reference — outside the item-of-supply concept Stop-Choc Limited |
| 966AS6530-36 | C/1 Advisory reference — outside the item-of-supply concept Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| 21928 | 3/9 Design control — primary reference Whittaker Corp Whittaker Electronic Systems Div |
NSN 5975-00-446-7875 is a Base,chassis, manufactured by L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products, classified under FSC 5975, Electrical Hardware and Supplies. Status: active.
NSN 5975-00-446-7875 has 4 manufacturer part numbers on file: 21928 (L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products), 1917-1001 (Rodale Electronics Inc. Dba Rodale Wireless), 2192953 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 2192953 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier).
4 possible matches (shared part number, not a government interchangeability claim): 6625-00-814-7549, 5360-00-949-1730, 5961-01-209-1856. Verify interchangeability with system specifications before substitution.
Key specifications for 21928: FSC Application Data: MISCELLANEOUS COMMUNICATIONS EQUIPMENT; Supporting Object/surface Attachment Method: ITEM HELD IN PLACE BY BRACKET ARM; Attachment to Item Supported Method: ITEM HELD IN PLACE BY MTG HOLES; Material: STEEL. 4 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.