The Sleeve,seal,coupler, cataloged under National Stock Number 5330-01-327-5748, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 6 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-01-327-5748 |
| Primary Part Number | GS10E21-7 |
| Item Name | Sleeve,seal,coupler |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Material Document and Classification | MIL-H-8796 MIL SPEC ALL MATERIAL RESPONSES OVERALL |
| Cross-Sectional Shape Style | SPHERICAL |
| Cross-Sectional Length | 5.250 INCHES NOMINAL IN |
| Cross Section Inside Diameter | 3.500 INCHES NOMINAL IN |
| Cross Section Outside Diameter | 3.580 INCHES MINIMUM AND 3.620 INCHES MAXIMUM IN |
| Material | RUBBER SILICONE CLASS Q AND GLASS FIBER OVERALL |
| 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 |
|---|---|
| GS10E21-7 | Industrial Tube Co Llc Dba Industrial Tube Co Llc Div Industrial Tube Company, Llc (USA) |
| GS10E21-7 | Arrowhead Products Corp (USA) |
| GS10E21-7 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| GS10E21-7 | 5/2 Secondary reference U.S. Government activity |
NSN 5330-01-327-5748 is a Sleeve,seal,coupler, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-327-5748 has 3 manufacturer part numbers on file: GS10E21-7 (Industrial Tube Co Llc Dba Industrial Tube Co Llc Div Industrial Tube Company, Llc), GS10E21-7 (Arrowhead Products Corp), GS10E21-7 (Northrop Grumman Systems Corporation).
Key specifications for GS10E21-7: Material Document and Classification: MIL-H-8796 MIL SPEC ALL MATERIAL RESPONSES OVERALL; Cross-Sectional Shape Style: SPHERICAL; Cross-Sectional Length: 5.250 INCHES NOMINAL IN; Cross Section Inside Diameter: 3.500 INCHES NOMINAL IN. 6 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.