The Fastener,flare Lock, cataloged under National Stock Number 5340-00-023-9102, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Howmet Global Fastening Systems Inc. Div Tridair Products. Government technical data includes 11 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. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-00-023-9102 |
| Primary Part Number | 604D1-62FT66NF |
| Item Name | Fastener,flare Lock |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Howmet Global Fastening Systems Inc. Div Tridair Products |
| Status | ACTIVE |
| Head Height | 0.023 INCHES NOMINAL IN |
| Material Thickness Range for Which Designed | +0.638 TO 0.660 INCHES IN |
| Mounting Method | SCREW |
| Hole Size for Which Designed | 0.500 INCHES NOMINAL IN |
| Features Provided | CLOSED SLEEVE |
| Screw Minimum Length for Which Designed | 0.420 INCHES IN |
| Head Style | FLUSH |
| Nominal Thread Size | 0.250 INCHES IN |
| Thread Quantity Per Inch | 28 |
| Thread Series Designator | UNF |
| Head Diameter | 0.687 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 |
|---|---|
| 604D1-62FT66NF PRIMARY | Howmet Global Fastening Systems Inc. Div Tridair Products (USA) |
NSN 5340-00-023-9102 is a Fastener,flare Lock, manufactured by Howmet Global Fastening Systems Inc. Div Tridair Products, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-023-9102 has 1 manufacturer part number on file: 604D1-62FT66NF (Howmet Global Fastening Systems Inc. Div Tridair Products).
Key specifications for 604D1-62FT66NF: Head Height: 0.023 INCHES NOMINAL IN; Material Thickness Range for Which Designed: +0.638 TO 0.660 INCHES IN; Mounting Method: SCREW; Hole Size for Which Designed: 0.500 INCHES NOMINAL IN. 11 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.