The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-528-4242, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is The American Society of Mechanical Engineers. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-528-4242 |
| Primary Part Number | AES14U164500BB3AB7 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | The American Society of Mechanical Engineers |
| Status | ACTIVE |
| Thread Length | 0.500 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.164 INCHES IN |
| Thread Direction | RIGHT-HAND |
| Thread Class | 3A A |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| 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 |
|---|---|
| AES14U164500BB3AB7 PRIMARY | The American Society of Mechanical Engineers (USA) |
| Reference | Meaning |
|---|---|
| S300NA42UA810574NNCH2 | 5/9 Secondary reference The American Society of Mechanical Engineers |
| ASME B18.3 | 5/1 Secondary reference The American Society of Mechanical Engineers |
| ASME B18.24 | 5/1 Secondary reference The American Society of Mechanical Engineers |
NSN 5305-01-528-4242 is a Screw,cap,socket Head, manufactured by The American Society of Mechanical Engineers, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-528-4242 has 1 manufacturer part number on file: AES14U164500BB3AB7 (The American Society of Mechanical Engineers).
3 possible matches (shared part number, not a government interchangeability claim): 5305-01-577-5474, 5305-01-655-1518, 5305-01-679-1017. Verify interchangeability with system specifications before substitution.
Key specifications for AES14U164500BB3AB7: Thread Length: 0.500 INCHES NOMINAL IN; Nominal Thread Diameter: 0.164 INCHES IN; Thread Direction: RIGHT-HAND; Special Features: COLOR BLACK. 5 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.