The Setscrew, cataloged under National Stock Number 5305-01-388-3716, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 5 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-388-3716 |
| Primary Part Number | HS5680-4 |
| Item Name | Setscrew |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | The Boeing Company |
| Status | ACTIVE |
| Fastener Length | 0.250 INCHES NOMINAL IN |
| Thread Length | 0.250 INCHES NOMINAL IN |
| Material Document and Classification | 6/6 NYLON, CAGEC 23050 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | HEADLESS (SETSCREW) |
| Thread Direction | RIGHT-HAND |
| Point Style | FLAT |
| Color | NATURAL OVERALL |
| Internal Drive Style | SLOT |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 28 |
| Material | PLASTIC POLYAMIDE NYLON OVERALL |
| Thread Series Designator | UNF |
| 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 |
|---|---|
| HS5680-4 | Echelon Supply and Service, Inc. (USA) |
| HS5680-4 | Lynn Electronics Llc (USA) |
| HS5680-4 | Craftech Industries, Inc. Dba Craftech Industries Inc (USA) |
| HS5680-4 PRIMARY | The Boeing Company (USA) |
| HS5680-4 | Product Components Corporation (USA) |
| Reference | Meaning |
|---|---|
| HS5680-4 | 5/9 Secondary reference Mcdonnell Douglas Helicopter Co Inc |
| HS5680-4 | 5/9 Secondary reference Industrial Screw Products Co |
NSN 5305-01-388-3716 is a Setscrew, manufactured by The Boeing Company, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-388-3716 has 5 manufacturer part numbers on file: HS5680-4 (Echelon Supply and Service, Inc.), HS5680-4 (Lynn Electronics Llc), HS5680-4 (Craftech Industries, Inc. Dba Craftech Industries Inc), HS5680-4 (The Boeing Company), HS5680-4 (Product Components Corporation).
Key specifications for HS5680-4: Fastener Length: 0.250 INCHES NOMINAL IN; Thread Length: 0.250 INCHES NOMINAL IN; Material Document and Classification: 6/6 NYLON, CAGEC 23050 MFR REF SINGLE MATERIAL RESPONSE OVERALL; Nominal Thread Diameter: 0.250 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.