The Screw,machine, cataloged under National Stock Number 5305-01-116-4800, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 6 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 5305-01-116-4800 |
| Primary Part Number | 3MDFL1218-3V4 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Head Height | 0.115 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN |
| Fastener Length | 0.574 INCHES MINIMUM AND 0.604 INCHES MAXIMUM IN |
| Screw Material Document and Classification | NAS 621 ASSN STD SINGLE MATERIAL RESPONSE |
| Thread Length | 0.314 INCHES MINIMUM AND 0.364 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | PAN |
| Thread Direction | RIGHT-HAND |
| Screw Material | TITANIUM ALLOY UNS R54520 |
| Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | HIGH-TORQUE |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.360 INCHES MINIMUM AND 0.374 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 3MDFL1218-3V4 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| 3MDFL1218-3V4 PRIMARY | The Boeing Company Div Defense (USA) |
| 3MDFL1218-3V4 | Nylok Llc (USA) |
| 3MDFL1218-3V4 | Bristol Industries, Llc (USA) |
| 3MDFL1218-3V4 | Nylok Llc (USA) |
| 3MDFL1218-3V4 | Long-Lok, Llc (USA) |
| Reference | Meaning |
|---|---|
| 3MDFL1218-3V4 | 5/9 Secondary reference Torkon Fastener Corp |
| 3MDFL1218-3V4 | 5/9 Secondary reference Towne Paulsen and Co Inc |
NSN 5305-01-116-4800 is a Screw,machine, manufactured by The Boeing Company Div Defense, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-116-4800 has 6 manufacturer part numbers on file: 3MDFL1218-3V4 (Sps Technologies, Llc Dba PB Fasteners), 3MDFL1218-3V4 (The Boeing Company Div Defense), 3MDFL1218-3V4 (Nylok Llc), 3MDFL1218-3V4 (Bristol Industries, Llc), 3MDFL1218-3V4 (Nylok Llc) and 1 more.
Key specifications for 3MDFL1218-3V4: Head Height: 0.115 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN; Fastener Length: 0.574 INCHES MINIMUM AND 0.604 INCHES MAXIMUM IN; Screw Material Document and Classification: NAS 621 ASSN STD SINGLE MATERIAL RESPONSE; Thread Length: 0.314 INCHES MINIMUM AND 0.364 INCHES MAXIMUM IN. 14 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). 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.