The Back-Up Ring,preformed Packing, cataloged under National Stock Number 5330-01-546-8753, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Waukesha Bearings Corporation. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-01-546-8753 |
| Primary Part Number | 000991842-002 |
| Item Name | Back-Up Ring,preformed Packing |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Waukesha Bearings Corporation |
| Status | ACTIVE |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE |
| 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 |
|---|---|
| 000991842-002 PRIMARY | Waukesha Bearings Corporation (USA) |
| 075001257ITEM14 | Waukesha Bearings Corporation (USA) |
NSN 5330-01-546-8753 is a Back-Up Ring,preformed Packing, manufactured by Waukesha Bearings Corporation, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-546-8753 has 2 manufacturer part numbers on file: 000991842-002 (Waukesha Bearings Corporation), 075001257ITEM14 (Waukesha Bearings Corporation).
Key specifications for 000991842-002: Special Features: POLYTETRAFLUOROETHYLENE BACK-UP RINGS WHICH DO NOT CONSTITUTE A COMPLETE ASSEMBLY W/THE RUBBER BOND INSERTS; THIS ITEM CAN BE PROCURED INDEPENDENTLY AS NEEDED, AND IT DOES NOT REQUIRE INDIVIDUAL TEST; End Item Identification: RUBBER-BONDED PISTON ASSEMBLY; Material: PLASTIC POLYTETRAFLUOROETHYLENE. 1 specification is 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.