The Back-Up Ring,preformed Packing, cataloged under National Stock Number 5330-01-663-9714, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Trelleborg Sealing Solutions Us, Inc.. Government technical data includes 2 specifications, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-01-663-9714 |
| Primary Part Number | TF1177R-005 |
| Item Name | Back-Up Ring,preformed Packing |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Trelleborg Sealing Solutions Us, Inc. |
| Status | ACTIVE |
| Cross-Sectional Shape Style | SINGLE TURN SPIRAL |
| Center Hole Diameter | 0.108 INCHES NOMINAL IN |
| 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 |
|---|---|
| TF1177R-005 PRIMARY | Trelleborg Sealing Solutions Us, Inc. (USA) |
| BCOR-TP005-BKR | Bermingham Construction Ltd Div Bermingham Foundation Equipment (CAN) |
| Reference | Meaning |
|---|---|
| TF1177R-005 | 3/9 Design control — primary reference Trelleborg Sealing Solutions El Segundo, Inc. Dba Tss El Segundo |
NSN 5330-01-663-9714 is a Back-Up Ring,preformed Packing, manufactured by Trelleborg Sealing Solutions Us, Inc., classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-663-9714 has 2 manufacturer part numbers on file: TF1177R-005 (Trelleborg Sealing Solutions Us, Inc.), BCOR-TP005-BKR (Bermingham Construction Ltd Div Bermingham Foundation Equipment).
Key specifications for TF1177R-005: Cross-Sectional Shape Style: SINGLE TURN SPIRAL; Center Hole Diameter: 0.108 INCHES NOMINAL IN; Part Name Assigned by Controlling Agency: BACK-UP RING; End Item Identification: 3895-01-660-8319. 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.
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.