The Retainer,packing, cataloged under National Stock Number 5330-00-576-3799, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Automatic Switch Company Dba Asco. Government technical data includes 2 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-00-576-3799 |
| Primary Part Number | AV71-758PC56 |
| Item Name | Retainer,packing |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Automatic Switch Company Dba Asco |
| Status | ACTIVE |
| Criticality Code Justification | ZZZY |
| Reference Number Differentiating Characteristics | MATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS. |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL F — Mutilate — Cut |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| AV71-758PC56 | Automatic Switch Company Dba Asco (USA) |
| Reference | Meaning |
|---|---|
| FV50-615 | 5/1 Secondary reference Automatic Switch Company Dba Asco |
| FV50-615REVAPCALL | 3/1 Design control — primary reference Automatic Switch Company Dba Asco |
| AV50-621PC50 | 5/1 Secondary reference Automatic Switch Company Dba Asco |
NSN 5330-00-576-3799 is a Retainer,packing, manufactured by Automatic Switch Company Dba Asco, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-576-3799 has 1 manufacturer part number on file: AV71-758PC56 (Automatic Switch Company Dba Asco).
Key specifications for AV71-758PC56: Criticality Code Justification: ZZZY; Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS.. 2 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.
NSN 5330-00-576-3799 has DEMIL Code F. Demilitarization may be required before disposal or transfer to non-military entities.
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.