The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-735-8426, 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 16 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-735-8426 |
| Primary Part Number | AES47M12D040WC1A51 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | The American Society of Mechanical Engineers |
| Status | ACTIVE |
| Width Across Flats | 8.0 MILLIMETERS NOMINAL MM |
| Fastener Length | 40.0 MILLIMETERS NOMINAL MM |
| Surface Treatment Document and Classification | ASTM B633, TYPE 1, SC 2 NATIONAL STD/SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Pitch in Millimeters | 1.75 |
| Thread Length | 36.0 MILLIMETERS NOMINAL MM |
| Material Document and Classification | ISO 898-1 PROPERTY CLASS 8.8 INTERNATIONAL STD/SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 12.0 MILLIMETERS MM |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Specification/standard Data | 05047-ASME B18.24-2023 INTERNATIONAL STD/SPEC |
| Surface Treatment | ZINC OVERALL |
| Internal Drive Style | HEXAGON |
| Countersink Angle | 90.0 DEGREES MINIMUM AND 92.0 DEGREES MAXIMUM |
| Material | STEEL PROPERTY CLASS 8.8 OVERALL |
| Thread Series Designator | M |
| Head Diameter | 23.40 MILLIMETERS MINIMUM AND 26.88 MILLIMETERS MAXIMUM MM |
| 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 |
|---|---|
| AES47M12D040WC1A51 PRIMARY | The American Society of Mechanical Engineers (USA) |
| 99707010832 | Taylor Defense Products, Llc Dba Taylor Defense Products Llc (USA) |
| Reference | Meaning |
|---|---|
| ASME B18.24-2023 | 3/1 Design control — primary reference The American Society of Mechanical Engineers |
NSN 5305-01-735-8426 is a Screw,cap,socket Head, manufactured by The American Society of Mechanical Engineers, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-735-8426 has 2 manufacturer part numbers on file: AES47M12D040WC1A51 (The American Society of Mechanical Engineers), 99707010832 (Taylor Defense Products, Llc Dba Taylor Defense Products Llc).
Key specifications for AES47M12D040WC1A51: Width Across Flats: 8.0 MILLIMETERS NOMINAL MM; Fastener Length: 40.0 MILLIMETERS NOMINAL MM; Surface Treatment Document and Classification: ASTM B633, TYPE 1, SC 2 NATIONAL STD/SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Pitch in Millimeters: 1.75. 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.