The Fastener,flare Lock, cataloged under National Stock Number 5340-01-517-0664, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems. Government technical data includes 19 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-517-0664 |
| Primary Part Number | 3M1306E08 |
| Item Name | Fastener,flare Lock |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems |
| Status | ACTIVE |
| Head Height | 0.104 INCHES NOMINAL IN |
| Material Thickness Range for Which Designed | +0.432 TO 0.442 INCHES IN |
| Surface Treatment Document and Classification | UNABLE TO DECODE |
| Thread Length | 0.333 INCHES NOMINAL IN |
| Countersink Angle | 100.0 DEGREES NOMINAL |
| Hole Size for Which Designed | 0.264 INCHES NOMINAL IN |
| Style Designator | COUNTERSUNK SLEEVE |
| Material Document and Classification | UNABLE TO DECODE |
| Screw Minimum Length for Which Designed | 0.432 INCHES IN |
| Head Style | DISHED COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.265 INCHES IN |
| Surface Treatment | UNABLE TO DECODE |
| Internal Drive Style | CROSS RECESS |
| Thread Class | 3B |
| Thread Quantity Per Inch | 12-48 |
| Material | UNABLE TO DECODE |
| Thread Series Designator | UNS |
| Head Diameter | 0.431 INCHES NOMINAL IN |
| 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 |
|---|---|
| 3M1306E08 PRIMARY | Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems (USA) |
| Reference | Meaning |
|---|---|
| 3M1306E08 | 5/9 Secondary reference The Boeing Company Div Defense |
| MAFF-S-NB08N7 | 5/2 Secondary reference U.S. Government activity |
NSN 5340-01-517-0664 is a Fastener,flare Lock, manufactured by Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-517-0664 has 1 manufacturer part number on file: 3M1306E08 (Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems).
Key specifications for 3M1306E08: Head Height: 0.104 INCHES NOMINAL IN; Material Thickness Range for Which Designed: +0.432 TO 0.442 INCHES IN; Surface Treatment Document and Classification: UNABLE TO DECODE; Thread Length: 0.333 INCHES NOMINAL IN. 19 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.