The Screw,machine, cataloged under National Stock Number 5305-01-656-5881, 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 13 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-656-5881 |
| Primary Part Number | AESY0M08B030CG0A81 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | The American Society of Mechanical Engineers |
| Status | ACTIVE |
| External Thread Tolerance Class | 6G G |
| Screw Surface Treatment | ZINC AND CHROMATE |
| Fastener Length | 30.0 MILLIMETERS NOMINAL MM |
| Thread Pitch in Millimeters | 1.25 |
| Thread Length | 27.5 MILLIMETERS MAXIMUM MM |
| Nominal Thread Diameter | 8.0 MILLIMETERS MM |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Screw Material | STEEL |
| Internal Drive Style | SLOT |
| Countersink Angle | 90.0 DEGREES MINIMUM AND 92.0 DEGREES MAXIMUM |
| Thread Series Designator | M |
| Head Diameter | 15.4 MILLIMETERS MINIMUM 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 |
|---|---|
| AESY0M08B030CG0A81 PRIMARY | The American Society of Mechanical Engineers (USA) |
| 60108718 | Bae Systems Gcs International Ltd (GBR) |
| Reference | Meaning |
|---|---|
| AESY0M08B030CG0A81 | 5/9 Secondary reference U.S. Government activity |
| B18.24-2004 | 3/1 Design control — primary reference The American Society of Mechanical Engineers |
NSN 5305-01-656-5881 is a Screw,machine, manufactured by The American Society of Mechanical Engineers, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-656-5881 has 2 manufacturer part numbers on file: AESY0M08B030CG0A81 (The American Society of Mechanical Engineers), 60108718 (Bae Systems Gcs International Ltd).
Key specifications for AESY0M08B030CG0A81: External Thread Tolerance Class: 6G G; Screw Surface Treatment: ZINC AND CHROMATE; Fastener Length: 30.0 MILLIMETERS NOMINAL MM; Thread Pitch in Millimeters: 1.25. 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.