The Screw,shoulder, cataloged under National Stock Number 5305-01-072-4704, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Howmet Global Fastening Systems Inc. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 8 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-072-4704 |
| Primary Part Number | HT4016-4-8X |
| Item Name | Screw,shoulder |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Howmet Global Fastening Systems Inc |
| Status | ACTIVE |
| Head Height | 0.015 INCHES MAXIMUM IN |
| Fastener Length | 0.881 INCHES MINIMUM AND 0.928 INCHES MAXIMUM IN |
| Shoulder Length | 0.447 INCHES NOMINAL FIRST SHOULDER IN |
| Shoulder Diameter | 0.264 INCHES MINIMUM AND 0.265 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.371 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Material Document and Classification | 23-112,FSCM 76301 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.250 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 | 28 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| 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 |
|---|---|
| HT4016-4-8X PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| HT4016-4-8X PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| WC4010-4-8 PRIMARY | West Coast Aerospace, Inc. (USA) |
| ST3M495-4-8-1 PRIMARY | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| 11911-4-8-1 | Reid Products Inc. Dba Reid Products Inc (USA) |
| HT4016-4-8X PRIMARY | Huck International, Inc. Div Huck Products Division (USA) |
| HT4016-4-8X PRIMARY | Hi-Shear Corporation (USA) |
| HT4016-4-8X PRIMARY | Huck International, Inc (USA) |
| Reference | Meaning |
|---|---|
| HT4016-4-8X | 5/9 Secondary reference U.S. Government activity |
| HT4016-4-8X | 3/2 Design control — primary reference U.S. Government activity |
| 10198362 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| ST3M495-4-8-1 | 7/2 Vendor item drawing reference The Boeing Company Div Defense |
| HT4016-4-8X | 5/9 Secondary reference U.S. Government activity |
| HT4016-4-8X | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
NSN 5305-01-072-4704 is a Screw,shoulder, manufactured by Howmet Global Fastening Systems Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-072-4704 has 8 manufacturer part numbers on file: HT4016-4-8X (Howmet Global Fastening Systems Inc), HT4016-4-8X (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), WC4010-4-8 (West Coast Aerospace, Inc.), ST3M495-4-8-1 (Fastener Innovation Technology, Inc. Dba F I T), 11911-4-8-1 (Reid Products Inc. Dba Reid Products Inc) and 3 more.
Key specifications for HT4016-4-8X: Head Height: 0.015 INCHES MAXIMUM IN; Fastener Length: 0.881 INCHES MINIMUM AND 0.928 INCHES MAXIMUM IN; Shoulder Length: 0.447 INCHES NOMINAL FIRST SHOULDER IN; Shoulder Diameter: 0.264 INCHES MINIMUM AND 0.265 INCHES MAXIMUM FIRST SHOULDER IN. 17 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.