The Seal,plain, cataloged under National Stock Number 5330-01-541-7271, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Macroseal, Inc. Dba Macroseal Inc. Government technical data includes 9 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5330-01-541-7271 |
| Primary Part Number | RP-5280 |
| Item Name | Seal,plain |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Macroseal, Inc. Dba Macroseal Inc |
| Status | ACTIVE |
| Seal Width | 0.460 INCHES NOMINAL IN |
| Housing Bore Diameter | 5.000 INCHES NOMINAL IN |
| Material Document and Classification | 20210 GRAPHITE FILLED PTFE MFR REF SINGLE MATERIAL RESPONSE SEALING ELEMENT |
| Cross-Sectional Shape Style | DUAL LIP |
| Accommodated Shaft Diameter | 3.750 INCHES NOMINAL IN |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE SEALING ELEMENT |
| Material | RUBBER FLUOROCARBON CLASS FPM SPRING |
| Material | STEEL COMP 301 INSERT |
| Construction | ONE-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 |
|---|---|
| RP-5280 PRIMARY | Macroseal, Inc. Dba Macroseal Inc (USA) |
| RP-5280 | Acadia Polymers Corporation Div Redmond Plastics Division (USA) |
| Reference | Meaning |
|---|---|
| RP-5280 | 5/9 Secondary reference Parker-Hannifin Corp Div O-Ring & Engineered Seals Division |
NSN 5330-01-541-7271 is a Seal,plain, manufactured by Macroseal, Inc. Dba Macroseal Inc, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-541-7271 has 2 manufacturer part numbers on file: RP-5280 (Macroseal, Inc. Dba Macroseal Inc), RP-5280 (Acadia Polymers Corporation Div Redmond Plastics Division).
Key specifications for RP-5280: Seal Width: 0.460 INCHES NOMINAL IN; Housing Bore Diameter: 5.000 INCHES NOMINAL IN; Material Document and Classification: 20210 GRAPHITE FILLED PTFE MFR REF SINGLE MATERIAL RESPONSE SEALING ELEMENT; Cross-Sectional Shape Style: DUAL LIP. 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.