The Seal,plain Encased, cataloged under National Stock Number 5330-01-183-6993, 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. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Seal,plain Encased |
| FSC / FSG | 5330 — Packing and Gasket Materials (FSG 53) |
| Manufacturers | Macrotech Polyseal Inc (CAGE 1XHG5); Komatsu America Corp. (CAGE 0SAT8) |
| Parameter | Value |
|---|---|
| NSN | 5330-01-183-6993 |
| Primary Part Number | MC-1500 |
| Item Name | Seal,plain Encased |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Macrotech Polyseal Inc |
| Status | ACTIVE |
| 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 |
|---|---|
| MC-1500 | Macrotech Polyseal Inc (USA) |
| 1104127C1 | Komatsu America Corp. (USA) |
| Reference | Meaning |
|---|---|
| 1104127C1 | 3/9 Design control — primary reference Komatsu American Intl Co |
| MC-1500 | 5/9 Secondary reference Microdot Inc Polyseal Div |
| 18228-9439 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 5330-01-183-6993 is a Seal,plain Encased, manufactured by Macrotech Polyseal Inc, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-183-6993 has 2 manufacturer part numbers on file: MC-1500 (Macrotech Polyseal Inc), 1104127C1 (Komatsu America Corp.).
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.