The Stay,locking, cataloged under National Stock Number 5340-01-278-4031, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-278-4031 |
| Primary Part Number | 5498616-9 |
| Item Name | Stay,locking |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Style Designator | FRICTION TYPE |
| Mounting Hole Diameter | 0.189 INCHES MINIMUM AND 0.195 INCHES MAXIMUM IN |
| Offset Quantity | 2 |
| Material Thickness | 0.090 INCHES NOMINAL IN |
| Surface Treatment | PASSIVATE |
| Mounting Hole Type | PLAIN |
| 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 |
|---|---|
| 5498616-9 | Naval Sea Systems Command (USA) |
| 5498616-9 | Drs Training & Control Systems, Llc Dba Leonardo Drs Training & Control Systems, Llc Div Range, Control and Unmanned Systems (USA) |
| Reference | Meaning |
|---|---|
| 5498616-9 | 3/9 Design control — primary reference Lockheed Martin Corporation |
NSN 5340-01-278-4031 is a Stay,locking, manufactured by Naval Sea Systems Command, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-278-4031 has 2 manufacturer part numbers on file: 5498616-9 (Naval Sea Systems Command), 5498616-9 (Drs Training & Control Systems, Llc Dba Leonardo Drs Training & Control Systems, Llc Div Range, Control and Unmanned Systems).
Key specifications for 5498616-9: Style Designator: FRICTION TYPE; Mounting Hole Diameter: 0.189 INCHES MINIMUM AND 0.195 INCHES MAXIMUM IN; Overall Width: 0.500 INCHES NOMINAL IN; Offset Quantity: 2. 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.