The Screw,shoulder, cataloged under National Stock Number 5305-01-045-5608, 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 7 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5305-01-045-5608 |
| Primary Part Number | ST3M505-3-11 |
| Item Name | Screw,shoulder |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Fastener Length | 1.004 INCHES MINIMUM AND 1.034 INCHES MAXIMUM IN |
| Shoulder Length | 0.611 INCHES MINIMUM AND 0.631 INCHES MAXIMUM FIRST SHOULDER IN |
| Shoulder Diameter | 0.2177 INCHES MINIMUM AND 0.2182 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.306 INCHES MINIMUM AND 0.356 INCHES MAXIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Material Document and Classification | AMS5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | FLAT 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 COMP XM-13 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.376 INCHES MINIMUM AND 0.385 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 |
|---|---|
| ST3M505-3-11 | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| HT4009-3-11 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HT4009-3-11 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| WC4009-3-11 | West Coast Aerospace, Inc. (USA) |
| HT4009-3-11 | Huck International, Inc (USA) |
| ST3M505-3-11 PRIMARY | The Boeing Company Div Defense (USA) |
| HT4009-3-11 | Hi-Shear Corporation (USA) |
| Reference | Meaning |
|---|---|
| HT4009-3-11 | 5/9 Secondary reference Deutsch Fastener Corp |
| HT4009-3-11 | 5/2 Secondary reference U.S. Government activity |
| HT4009-3-11 | 5/2 Secondary reference U.S. Government activity |
| HT4009-3-11 | 5/9 Secondary reference U.S. Government activity |
NSN 5305-01-045-5608 is a Screw,shoulder, manufactured by The Boeing Company Div Defense, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-045-5608 has 7 manufacturer part numbers on file: ST3M505-3-11 (Fastener Innovation Technology, Inc. Dba F I T), HT4009-3-11 (Sps Technologies, Llc Dba PB Fasteners), HT4009-3-11 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), WC4009-3-11 (West Coast Aerospace, Inc.), HT4009-3-11 (Huck International, Inc) and 2 more.
Key specifications for ST3M505-3-11: Fastener Length: 1.004 INCHES MINIMUM AND 1.034 INCHES MAXIMUM IN; Shoulder Length: 0.611 INCHES MINIMUM AND 0.631 INCHES MAXIMUM FIRST SHOULDER IN; Shoulder Diameter: 0.2177 INCHES MINIMUM AND 0.2182 INCHES MAXIMUM FIRST SHOULDER IN; Thread Length: 0.306 INCHES MINIMUM AND 0.356 INCHES MAXIMUM 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.