The Plate,retaining,seal, cataloged under National Stock Number 5340-01-520-5988, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems. Government technical data includes 4 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-520-5988 |
| Primary Part Number | DAF3521D405-001 |
| Item Name | Plate,retaining,seal |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems |
| Status | ACTIVE |
| Mounting Hole Quantity | 4 |
| Mounting Method | UNTHREADED MOUNTING HOLES |
| Shape | RECTANGULAR |
| Material | ALUMINUM ALLOY 6061 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| DAF3521D405-001 PRIMARY | Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems (USA) |
| Reference | Meaning |
|---|---|
| DAF3521D405-001 | 5/9 Secondary reference U.S. Government activity |
NSN 5340-01-520-5988 is a Plate,retaining,seal, manufactured by Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-520-5988 has 1 manufacturer part number on file: DAF3521D405-001 (Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems).
Key specifications for DAF3521D405-001: Mounting Hole Quantity: 4; Mounting Method: UNTHREADED MOUNTING HOLES; Shape: RECTANGULAR; Part Name Assigned by Controlling Agency: RUB STRIP. 4 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.