The Seal Assy,aerodynamic, cataloged under National Stock Number 5330-01-197-2178, 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 Dba Northrop Grumman Systems Corp Div Northrop Grumman Aeronautics Systems. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-01-197-2178 |
| Primary Part Number | A51B52026-401 |
| Item Name | Seal Assy,aerodynamic |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Northrop Grumman Aeronautics Systems |
| Status | ACTIVE |
| General Characteristics Item Description | CONSISTS OF SEAL P/N A51B52026-411,ADHESIVE BONDED TO ALUMINUM RETAINER P/N A51B52026-17,ALLOY 2024-T62,QQ-A-250/4,ANODIZED,MIL-A-8625,TY 2,CL 1,PRIMER COATED,MIL-P-23377; 4 HOLES ALONG LG,CENTERED 1.414 IN. FROM LG EDGE OF SEAL,0.191 IN. MIN,0.198 IN. MAX DIA,RETAINER SIDE COUNTERSUNK 100.0 DEG TO 0.305 IN. MIN,0.315 IN. MAX DIA,SEAL SIDE COUNTERBORED 0.312 IN. DIA IN |
| 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 |
|---|---|
| A51B52026-401 PRIMARY | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Northrop Grumman Aeronautics Systems (USA) |
| Reference | Meaning |
|---|---|
| A51B52026-401 | 5/2 Secondary reference U.S. Government activity |
| A51B52026-401 | C/1 Advisory reference — outside the item-of-supply concept Northrop Grumman Systems Corporation |
| A51B52026-401 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
NSN 5330-01-197-2178 is a Seal Assy,aerodynamic, manufactured by Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Northrop Grumman Aeronautics Systems, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-197-2178 has 1 manufacturer part number on file: A51B52026-401 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Northrop Grumman Aeronautics Systems).
Key specifications for A51B52026-401: General Characteristics Item Description: CONSISTS OF SEAL P/N A51B52026-411,ADHESIVE BONDED TO ALUMINUM RETAINER P/N A51B52026-17,ALLOY 2024-T62,QQ-A-250/4,ANODIZED,MIL-A-8625,TY 2,CL 1,PRIMER COATED,MIL-P-23377; 4 HOLES ALONG LG,CENTERED 1.414 IN. FROM LG EDGE OF SEAL,0.191 IN. MIN,0.198 IN. MAX DIA,RETAINER SIDE COUNTERSUNK 100.0 DEG TO 0.305 IN. MIN,0.315 IN. MAX DIA,SEAL SIDE COUNTERBORED 0.312 IN. DIA IN. 1 specification is 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.