The Retainer,packing, cataloged under National Stock Number 5330-00-582-7481, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Dbr Industries, Inc. Dba Dbr Industries Inc. Government technical data includes 9 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5330-00-582-7481 |
| Primary Part Number | MS28774-339 |
| Item Name | Retainer,packing |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Dbr Industries, Inc. Dba Dbr Industries Inc |
| Status | ACTIVE |
| Cross-Sectional Height | 0.065 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN |
| Material Document and Classification | MIL-R-8791 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | SQUARE/RECTANGULAR |
| Cut Type | DIAGONAL OVERALL |
| Peripheral Diameter | 3.639 INCHES NOMINAL IN |
| Color | WHITE |
| Center Hole Diameter | 3.272 INCHES MINIMUM AND 3.274 INCHES MAXIMUM IN |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE OVERALL |
| Joint Type | SCARF-PERIPHERAL OVERALL |
| 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 |
|---|---|
| MS28774-339 | Dbr Industries, Inc. Dba Dbr Industries Inc (USA) |
| Reference | Meaning |
|---|---|
| MS28774-339ES | 5/9 Secondary reference Eriks B.v. |
| MS28774-339 | 2/2 Government specification standardization U.S. Government activity |
| MS28774 | 4/1 Identification reference U.S. Government activity |
| SAE-AS8791 | 5/1 Secondary reference Sae International Dba Sae International |
| MSI8774-339 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 5330-00-582-7481 is a Retainer,packing, manufactured by Dbr Industries, Inc. Dba Dbr Industries Inc, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-582-7481 has 1 manufacturer part number on file: MS28774-339 (Dbr Industries, Inc. Dba Dbr Industries Inc).
Key specifications for MS28774-339: Cross-Sectional Height: 0.065 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN; Material Document and Classification: MIL-R-8791 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: SQUARE/RECTANGULAR; Cut Type: DIAGONAL OVERALL. 9 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.