The Back-Up Ring,preformed Packing, cataloged under National Stock Number 5330-01-551-8748, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Naval Inventory Control Point Mechanicsburg. Government technical data includes 2 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through both NSN and commercial part number lookups. 12 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-01-551-8748 |
| Primary Part Number | M8791/1-013CP |
| Item Name | Back-Up Ring,preformed Packing |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Criticality Code Justification | ZZZW |
| Departure From Cited Document | CLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| M8791/1-013CP | Naval Inventory Control Point Mechanicsburg (USA) |
| 7383858-V3D10436-12CP | Naval Inventory Control Point Mechanicsburg (USA) |
| V3D10436 ITEM 11CP | Naval Inventory Control Point Mechanicsburg (USA) |
| H547-0001-V3D10436-12CP | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| V3D10436 ITEM 12 | 5/1 Secondary reference U.S. Government activity |
| H547-0001-V3D10436-12 | 5/1 Secondary reference U.S. Government activity |
| 7550478-V3D10436-12 | 5/1 Secondary reference Naval Sea Systems Command |
| 7550478-V3D10436-12CP | 5/1 Secondary reference Naval Inventory Control Point Mechanicsburg |
| V3D10436-12 | 5/1 Secondary reference U.S. Government activity |
| V3D10436-12CP | 5/1 Secondary reference Naval Inventory Control Point Mechanicsburg |
| M8791/1-013 | 5/1 Secondary reference U.S. Government activity |
| V3D10436 ITEM 12CP | 5/1 Secondary reference Naval Inventory Control Point Mechanicsburg |
| V3D10436 ITEM 11 | 5/1 Secondary reference U.S. Government activity |
| G547-0002-V3D10436-12 | 5/1 Secondary reference U.S. Government activity |
| G547-0002-V3D10436-12CP | 5/1 Secondary reference Naval Inventory Control Point Mechanicsburg |
| 7383858-V3D10436-12 | 3/1 Design control — primary reference Naval Sea Systems Command |
NSN 5330-01-551-8748 is a Back-Up Ring,preformed Packing, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-551-8748 has 4 manufacturer part numbers on file: M8791/1-013CP (Naval Inventory Control Point Mechanicsburg), 7383858-V3D10436-12CP (Naval Inventory Control Point Mechanicsburg), V3D10436 ITEM 11CP (Naval Inventory Control Point Mechanicsburg), H547-0001-V3D10436-12CP (Naval Inventory Control Point Mechanicsburg).
Key specifications for M8791/1-013CP: Criticality Code Justification: ZZZW; Departure From Cited Document: CLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D; End Item Identification: MANIFOLD, QUIET AIR REDUCING.. 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 5330-01-551-8748 has DEMIL Code Q. 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.