The Retainer,helical Compression Spr, cataloged under National Stock Number 5340-01-058-8304, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Automatic Switch Company Dba Asco. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Item Name | Retainer,helical Compression Spr |
| FSC / FSG | 5340 — Hardware, Commercial (FSG 53) |
| Manufacturers | Automatic Switch Company Dba Asco (CAGE 04845) |
| Parameter | Value |
|---|---|
| NSN | 5340-01-058-8304 |
| Primary Part Number | FV23-728-11B |
| Item Name | Retainer,helical Compression Spr |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Automatic Switch Company Dba Asco |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| FV23-728-11B PRIMARY | Automatic Switch Company Dba Asco (USA) |
| Reference | Meaning |
|---|---|
| AV-71-193 PIECE | C/1 Advisory reference — outside the item-of-supply concept Automatic Switch Company Dba Asco |
| FV-23-728-11B | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| AV89-606PC18 | 5/9 Secondary reference Automatic Switch Company Dba Asco |
| AV-71-193PIECE69 | C/1 Advisory reference — outside the item-of-supply concept Automatic Switch Company Dba Asco |
NSN 5340-01-058-8304 is a Retainer,helical Compression Spr, manufactured by Automatic Switch Company Dba Asco, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-058-8304 has 1 manufacturer part number on file: FV23-728-11B (Automatic Switch Company Dba Asco).
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.