The Back-Up Ring,preformed Packing, cataloged under National Stock Number 5330-01-512-3732, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Hamilton Sundstrand Corporation Dba Collins Aerospace. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Item Name | Back-Up Ring,preformed Packing |
| FSC / FSG | 5330 — Packing and Gasket Materials (FSG 53) |
| Manufacturers | Hamilton Sundstrand Corporation Dba Collins Aerospace (CAGE 73030); Trelleborg Sealing Solutions Us, Inc. (CAGE 09257) |
| Parameter | Value |
|---|---|
| NSN | 5330-01-512-3732 |
| Primary Part Number | SD001008-1-28A |
| Item Name | Back-Up Ring,preformed Packing |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Hamilton Sundstrand Corporation Dba Collins Aerospace |
| Status | ACTIVE |
| 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 |
|---|---|
| SD001008-1-28A PRIMARY | Hamilton Sundstrand Corporation Dba Collins Aerospace (USA) |
| SD001008-1-28A PRIMARY | Trelleborg Sealing Solutions Us, Inc. (USA) |
| Reference | Meaning |
|---|---|
| NV822201 FIND 96 | 5/9 Secondary reference Hamilton Sundstrand Corporation Dba Collins Aerospace |
| STSV069A28 | 5/9 Secondary reference Hamilton Sundstrand Corporation Dba Collins Aerospace |
| SD001008-1-28A | 3/9 Design control — primary reference Trelleborg Sealing Solutions El Segundo, Inc. Dba Tss El Segundo |
NSN 5330-01-512-3732 is a Back-Up Ring,preformed Packing, manufactured by Hamilton Sundstrand Corporation Dba Collins Aerospace, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-512-3732 has 2 manufacturer part numbers on file: SD001008-1-28A (Hamilton Sundstrand Corporation Dba Collins Aerospace), SD001008-1-28A (Trelleborg Sealing Solutions Us, Inc.).
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.