The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-045-3016, 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 13 specifications, cited from the U.S. Government catalog. The record lists 9 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-045-3016 |
| Primary Part Number | ST3M506-3-10-1 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Head Height | 0.013 INCHES MAXIMUM IN |
| Fastener Length | 0.940 INCHES MINIMUM AND 0.987 INCHES MAXIMUM IN |
| Thread Length | 0.331 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | FILLISTER COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Internal Drive Style | HIGH-TORQUE |
| Countersink Angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.3275 INCHES MINIMUM AND 0.3325 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 |
|---|---|
| WC4011-3-10 | West Coast Aerospace, Inc. (USA) |
| HT4016-3-10Y | Sps Technologies Ltd, Tj Brooks Division (GBR) |
| HT4016-3-10Y | Huck International, Inc (USA) |
| ST3M506-3-10-1 | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| ST3M506-3-10-1 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HT4016-3-10Y | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| HT4016-3-10Y | Hi-Shear Corporation (USA) |
| HT4016-3-10Y | Howmet Global Fastening Systems Inc (USA) |
| ST3M506-3-10-1 PRIMARY | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| HT4016-3-10Y | 5/9 Secondary reference U.S. Government activity |
| HT4016-3-10Y | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| ST3M506-3-10-1 | 5/9 Secondary reference Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company |
| HT4016-3-10Y | 5/2 Secondary reference U.S. Government activity |
| 10163797 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| ST3M506-3-10-1 | 5/9 Secondary reference U.S. Government activity |
| HT4016-3-10Y | 5/9 Secondary reference U.S. Government activity |
| ST3M506-3-10-1 | 5/9 Secondary reference West Coast Aerospace, Inc. |
NSN 5305-01-045-3016 is a Screw,cap,socket Head, manufactured by The Boeing Company Div Defense, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-045-3016 has 9 manufacturer part numbers on file: WC4011-3-10 (West Coast Aerospace, Inc.), HT4016-3-10Y (Sps Technologies Ltd, Tj Brooks Division), HT4016-3-10Y (Huck International, Inc), ST3M506-3-10-1 (Fastener Innovation Technology, Inc. Dba F I T), ST3M506-3-10-1 (Sps Technologies, Llc Dba PB Fasteners) and 4 more.
Key specifications for ST3M506-3-10-1: Head Height: 0.013 INCHES MAXIMUM IN; Fastener Length: 0.940 INCHES MINIMUM AND 0.987 INCHES MAXIMUM IN; Thread Length: 0.331 INCHES NOMINAL IN; Nominal Thread Diameter: 0.190 INCHES IN. 13 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.