The Sleeve,seal,coupler, cataloged under National Stock Number 5330-01-439-5633, 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 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5330-01-439-5633 |
| Primary Part Number | GS10A4-4.5 |
| Item Name | Sleeve,seal,coupler |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Temp Rating | 275.00 FAHRENHEIT DEGF |
| Cross-Sectional Shape Style | SPHERICAL |
| Cross-Sectional Length | 2.250 INCHES MINIMUM AND 2.370 INCHES MAXIMUM IN |
| Cross Section Inside Diameter | 1.000 INCHES MINIMUM AND 1.060 INCHES MAXIMUM IN |
| Cross Section Outside Diameter | 1.050 INCHES MINIMUM AND 1.140 INCHES MAXIMUM IN |
| Material | GLASS FIBER AND RUBBER NEOPRENE 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 |
|---|---|
| GS10A4-4.5 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| GS10A4-4.5 | 5/2 Secondary reference U.S. Government activity |
| GS10A | 7/1 Vendor item drawing reference Northrop Grumman Systems Corporation |
NSN 5330-01-439-5633 is a Sleeve,seal,coupler, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-439-5633 has 1 manufacturer part number on file: GS10A4-4.5 (Northrop Grumman Systems Corporation).
Key specifications for GS10A4-4.5: Temp Rating: 275.00 FAHRENHEIT DEGF; Cross-Sectional Shape Style: SPHERICAL; Cross-Sectional Length: 2.250 INCHES MINIMUM AND 2.370 INCHES MAXIMUM IN; Cross Section Inside Diameter: 1.000 INCHES MINIMUM AND 1.060 INCHES MAXIMUM 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.