The Seal,plain, cataloged under National Stock Number 5330-01-362-4473, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Macrotech Polyseal 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-01-362-4473 |
| Primary Part Number | 312-14.375 |
| Item Name | Seal,plain |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Macrotech Polyseal Inc |
| Status | ACTIVE |
| Seal Width | 0.312 INCHES NOMINAL IN |
| Material Document and Classification | LUBRITHANE,CAGE 57532 MFR REF SINGLE MATERIAL RESPONSE SEALING ELEMENT |
| Cross-Sectional Shape Style | DUAL LIP |
| Material | PLASTIC POLYURETHANE SEALING ELEMENT |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SPRING |
| 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 |
|---|---|
| 312-14.375 PRIMARY | Macrotech Polyseal Inc (USA) |
| Reference | Meaning |
|---|---|
| WG210062 | 5/2 Secondary reference U.S. Government activity |
| 312-14.375 | 5/9 Secondary reference Microdot Inc Polyseal Div |
NSN 5330-01-362-4473 is a Seal,plain, manufactured by Macrotech Polyseal Inc, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-362-4473 has 1 manufacturer part number on file: 312-14.375 (Macrotech Polyseal Inc).
Key specifications for 312-14.375: Seal Width: 0.312 INCHES NOMINAL IN; Material Document and Classification: LUBRITHANE,CAGE 57532 MFR REF SINGLE MATERIAL RESPONSE SEALING ELEMENT; Cross-Sectional Shape Style: DUAL LIP; Special Features: 14.375 INCHES I.D.,15 INCHES O.D. 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.