The Seal,plain Encased, cataloged under National Stock Number 5330-01-576-4254, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-01-576-4254 |
| Primary Part Number | 21370-1042 |
| Item Name | Seal,plain Encased |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc |
| Status | ACTIVE |
| Seal Width | 0.375 INCHES NOMINAL IN |
| Reference Data and Literature | GARLOCK SEALING TECHNOLOGIES,KLOZURE OIL SEALS AND BEARING ISOLATORS MASTER CATALOG |
| Housing Bore Diameter | 2.625 INCHES NOMINAL IN |
| Material Document and Classification | GARLOCK 21370 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| Accommodated Shaft Diameter | 1.875 INCHES NOMINAL IN |
| Material | STEEL CASE |
| Material | RUBBER FLUOROCARBON CLASS FPM SEALING ELEMENT |
| Material | STEEL CORROSION RESISTING SPRING |
| 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 |
|---|---|
| 959E463-016 | General Electric Company (USA) |
| 170A937 REV P PT NO 19 | General Electric Company (USA) |
| 21370-1042 PRIMARY | Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc (USA) |
NSN 5330-01-576-4254 is a Seal,plain Encased, manufactured by Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-576-4254 has 3 manufacturer part numbers on file: 959E463-016 (General Electric Company), 170A937 REV P PT NO 19 (General Electric Company), 21370-1042 (Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc).
Key specifications for 21370-1042: Seal Width: 0.375 INCHES NOMINAL IN; Reference Data and Literature: GARLOCK SEALING TECHNOLOGIES,KLOZURE OIL SEALS AND BEARING ISOLATORS MASTER CATALOG; Housing Bore Diameter: 2.625 INCHES NOMINAL IN; Material Document and Classification: GARLOCK 21370 MFR REF SINGLE MATERIAL RESPONSE 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.