The Screw,close Tolerance, cataloged under National Stock Number 5305-01-499-6684, 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 16 specifications, cited from the U.S. Government catalog. The record lists 15 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-499-6684 |
| Primary Part Number | ST3M466V4L25-1 |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Fastener Length | 2.031 INCHES NOMINAL IN |
| Thread Length | 0.469 INCHES NOMINAL IN |
| Material Document and Classification | AMS 4928 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 4967 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | OVAL COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Grip Length | 1.562 INCHES NOMINAL 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) |
| Head Diameter | 0.389 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 |
|---|---|
| ST3M466V4L25-1 PRIMARY | The Boeing Company Div Defense (USA) |
| ST3M466V4L25-1 | Saturn Fasteners Inc (USA) |
| 11909V4L25-1 | Reid Products Inc. Dba Reid Products Inc (USA) |
| ST3M466V4L25-1 | Cmp Products (a Division of British Engines Ltd) (GBR) |
| ST3M466V4L25-1 | Huck International, Inc (USA) |
| ST3M466V4L25-1 | Howmet Global Fastening Systems Inc (USA) |
| ST3M466V4L25-1 | West Coast Aerospace, Inc. (USA) |
| ST3M466V4L25-1 | Camcar Llc Div Camcar Llc (USA) |
| ST3M466V4L25-1 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| ST3M466V4L25-1 | Houston Precision Fasteners I Lp (USA) |
| ST3M466V4L25-1 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| ST3M466V4L25-1 | Hi-Shear Corporation (USA) |
| ST3M466V4L25-1 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| ST3M466V4L25-1 | Heartland Precision Fasteners Inc (USA) |
| ST3M466V4L25-1 | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| Reference | Meaning |
|---|---|
| HT4028L4-25 | 5/9 Secondary reference U.S. Government activity |
| ST3M466V4L25-1 | 5/9 Secondary reference U.S. Government activity |
| ST3M466V4L25-1 | 5/2 Secondary reference U.S. Government activity |
| HT4028L4-25 | 5/9 Secondary reference U.S. Government activity |
| HT4028L4-25 | 5/9 Secondary reference Hi-Shear Corporation |
NSN 5305-01-499-6684 is a Screw,close Tolerance, manufactured by The Boeing Company Div Defense, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-499-6684 has 15 manufacturer part numbers on file: ST3M466V4L25-1 (The Boeing Company Div Defense), ST3M466V4L25-1 (Saturn Fasteners Inc), 11909V4L25-1 (Reid Products Inc. Dba Reid Products Inc), ST3M466V4L25-1 (Cmp Products (a Division of British Engines Ltd)), ST3M466V4L25-1 (Huck International, Inc) and 10 more.
Key specifications for ST3M466V4L25-1: Fastener Length: 2.031 INCHES NOMINAL IN; Thread Length: 0.469 INCHES NOMINAL IN; Material Document and Classification: AMS 4928 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 4967 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Nominal Thread Diameter: 0.250 INCHES IN. 16 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.