The Seal, cataloged under National Stock Number 5330-01-053-7368, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Seal |
| FSC / FSG | 5330 — Packing and Gasket Materials (FSG 53) |
| Manufacturers | Caterpillar Inc Div Caterpillar Defense (CAGE 11083); Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc (CAGE 73680); Greene Tweed & Co Inc (CAGE 5F573) |
| Parameter | Value |
|---|---|
| NSN | 5330-01-053-7368 |
| Primary Part Number | 421-4025 |
| Item Name | Seal |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Part Number | Manufacturer |
|---|---|
| 421-4025 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
| 17159-1112 PRIMARY | Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc (USA) |
| 383-44000-330 PRIMARY | Greene Tweed & Co Inc (USA) |
| Reference | Meaning |
|---|---|
| 3850-03000-0250-0408 | 5/9 Secondary reference Palmetto Inc |
| RO 001-191 | 5/9 Secondary reference Freudenberg-Nok General Partnership |
| 5J8300 | 5/9 Secondary reference Caterpillar Inc Div Caterpillar Defense |
| 17159-1112 | 5/9 Secondary reference Chromex Distribution |
| 1672319 | 5/9 Secondary reference Caterpillar Inc Div Caterpillar Defense |
| 3850-03000-0250-0408 | 5/9 Secondary reference Greene Tweed & Co Inc |
NSN 5330-01-053-7368 is a Seal, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-053-7368 has 3 manufacturer part numbers on file: 421-4025 (Caterpillar Inc Div Caterpillar Defense), 17159-1112 (Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc), 383-44000-330 (Greene Tweed & Co Inc).
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.