The Packing with Retainer, cataloged under National Stock Number 5330-01-356-6645, 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 6 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-01-356-6645 |
| Primary Part Number | S38186-331 |
| Item Name | Packing with Retainer |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Trelleborg Sealing Solutions Us, Inc. |
| Status | ACTIVE |
| Packing Inside Diameter | 2.207 INCHES MINIMUM AND 2.243 INCHES MAXIMUM IN |
| Material Document and Classification | MIL-P-83461 MIL SPEC SINGLE MATERIAL RESPONSE PACKING |
| Retainer Thickness | 0.424 INCHES MINIMUM AND 0.434 INCHES MAXIMUM IN |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR PACKING |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE RETAINER |
| Construction | TWO-PIECE |
| 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 |
|---|---|
| S38186-331 PRIMARY | Trelleborg Sealing Solutions Us, Inc. (USA) |
| Reference | Meaning |
|---|---|
| B33871-331 | 5/2 Secondary reference U.S. Government activity |
| S38186-331 | 3/9 Design control — primary reference U.S. Government activity |
NSN 5330-01-356-6645 is a Packing with Retainer, manufactured by Trelleborg Sealing Solutions Us, Inc., classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-356-6645 has 1 manufacturer part number on file: S38186-331 (Trelleborg Sealing Solutions Us, Inc.).
Key specifications for S38186-331: Packing Inside Diameter: 2.207 INCHES MINIMUM AND 2.243 INCHES MAXIMUM IN; Material Document and Classification: MIL-P-83461 MIL SPEC SINGLE MATERIAL RESPONSE PACKING; Retainer Thickness: 0.424 INCHES MINIMUM AND 0.434 INCHES MAXIMUM IN; Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR PACKING. 6 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.