The Packing,preformed, cataloged under National Stock Number 5330-00-618-1627, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is R & B Plastics Inc. Government technical data includes 5 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-00-618-1627 |
| Primary Part Number | S4444978-32 |
| Item Name | Packing,preformed |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | R & B Plastics Inc |
| Status | ACTIVE |
| Cross-Sectional Height | 0.062 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | SQUARE/RECTANGULAR |
| Center Hole Diameter | 1.995 INCHES NOMINAL IN |
| Material | PLASTIC OVERALL |
| Joint Type | SCARF-PERIPHERAL ONE SIDE |
| 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 |
|---|---|
| S4444978-32 PRIMARY | R & B Plastics Inc (USA) |
| Reference | Meaning |
|---|---|
| S4444978-32 | 5/9 Secondary reference The Boeing Company |
| S11051-32P | 5/9 Secondary reference U.S. Government activity |
| 4444978-32 | 5/9 Secondary reference The Boeing Company |
| 4444978-32 | 5/2 Secondary reference U.S. Government activity |
| S11051-32P | C/1 Advisory reference — outside the item-of-supply concept Trelleborg Sealing Solutions Us, Inc. |
NSN 5330-00-618-1627 is a Packing,preformed, manufactured by R & B Plastics Inc, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-618-1627 has 1 manufacturer part number on file: S4444978-32 (R & B Plastics Inc).
Key specifications for S4444978-32: Cross-Sectional Height: 0.062 INCHES NOMINAL IN; Cross-Sectional Shape Style: SQUARE/RECTANGULAR; Special Features: DIAGONAL CUT TYPE; Center Hole Diameter: 1.995 INCHES NOMINAL IN. 5 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.