The Reducing Washer,knockout, cataloged under National Stock Number 5975-01-484-8921, is classified within Federal Supply Class 5975 (Electrical Hardware and Supplies) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier. Government technical data includes 7 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5975-01-484-8921 |
| Primary Part Number | 2029AS980-15 |
| Item Name | Reducing Washer,knockout |
| FSC / FSG | 5975 / 59 — Electrical Hardware and Supplies |
| Manufacturer | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| Status | ACTIVE |
| Knockout Size for Which Designed | 2.500 INCHES NOMINAL IN |
| Conduit Size Accommodated | 2.400 INCHES NOMINAL IN |
| Design Type | EMBOSSED |
| Overall Thickness | 0.040 INCHES NOMINAL IN |
| Criticality Code Justification | AGAV |
| Outside Diameter | 4.100 INCHES NOMINAL IN |
| Material | STEEL OR ALUMINUM |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 2029AS980-15 PRIMARY | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
NSN 5975-01-484-8921 is a Reducing Washer,knockout, manufactured by Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier, classified under FSC 5975, Electrical Hardware and Supplies. Status: active.
NSN 5975-01-484-8921 has 1 manufacturer part number on file: 2029AS980-15 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier).
Key specifications for 2029AS980-15: Knockout Size for Which Designed: 2.500 INCHES NOMINAL IN; Conduit Size Accommodated: 2.400 INCHES NOMINAL IN; Design Type: EMBOSSED; Overall Thickness: 0.040 INCHES NOMINAL IN. 7 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.