The Screw,close Tolerance, cataloged under National Stock Number 5305-01-394-5977, 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 18 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-394-5977 |
| Primary Part Number | ST3M466V4DL4M1 |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Fastener Length | 1.070 INCHES MINIMUM AND 1.200 INCHES MAXIMUM IN |
| Thread Length | 0.460 INCHES NOMINAL IN |
| Shank Unthreaded Hole Diameter | 0.076 INCHES MINIMUM AND 0.081 INCHES MAXIMUM GRIP IN |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Features Provided | DRY FILM LUBRICANT |
| Head Style | OVAL COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN |
| Grip Diameter | 0.2490 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN |
| Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | HIGH-TORQUE |
| Countersink Angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | TITANIUM ALLOY UNS R56400 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 0.899 INCHES MINIMUM AND 0.949 INCHES MAXIMUM FIRST HOLE IN |
| Head Diameter | 0.390 INCHES MINIMUM AND 0.395 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 |
|---|---|
| ST3M466V4DL4M1 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| 11909V4DL4M1 | Reid Products Inc. Dba Reid Products Inc (USA) |
| ST3M466V4DL4M1 | Sps Technologies Ltd, Tj Brooks Division (GBR) |
| ST3M466V4DL4M1 | Hi-Shear Corporation (USA) |
| ST3M466V4DL4M1 PRIMARY | The Boeing Company Div Defense (USA) |
| ST3M466V4DL4M1 | Huck International, Inc (USA) |
| Reference | Meaning |
|---|---|
| HT4028L4D4M | 5/9 Secondary reference U.S. Government activity |
| HT4028L4D4M | C/1 Advisory reference — outside the item-of-supply concept Howmet Global Fastening Systems Inc |
| ST3M466V4DL4M1 | 5/2 Secondary reference U.S. Government activity |
| ST3M466V4DL4M1 | 5/2 Secondary reference U.S. Government activity |
NSN 5305-01-394-5977 is a Screw,close Tolerance, manufactured by The Boeing Company Div Defense, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-394-5977 has 6 manufacturer part numbers on file: ST3M466V4DL4M1 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), 11909V4DL4M1 (Reid Products Inc. Dba Reid Products Inc), ST3M466V4DL4M1 (Sps Technologies Ltd, Tj Brooks Division), ST3M466V4DL4M1 (Hi-Shear Corporation), ST3M466V4DL4M1 (The Boeing Company Div Defense) and 1 more.
Key specifications for ST3M466V4DL4M1: Fastener Length: 1.070 INCHES MINIMUM AND 1.200 INCHES MAXIMUM IN; Thread Length: 0.460 INCHES NOMINAL IN; Shank Unthreaded Hole Diameter: 0.076 INCHES MINIMUM AND 0.081 INCHES MAXIMUM GRIP IN; Nominal Thread Diameter: 0.250 INCHES IN. 18 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.