The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-01-338-8012, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is American Society of Mechanical Engineers Inc. Government technical data includes 13 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-338-8012 |
| Primary Part Number | AES07M08B040WB9AA1 |
| Item Name | Screw,cap,hexagon Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | American Society of Mechanical Engineers Inc |
| Status | ACTIVE |
| Head Height | 5.1 MILLIMETERS MINIMUM AND 5.5 MILLIMETERS MAXIMUM MM |
| External Thread Tolerance Class | 6G G |
| Fastener Length | 39.5 MILLIMETERS MINIMUM AND 40.5 MILLIMETERS MAXIMUM MM |
| Surface Treatment Document and Classification | QQ-Z-325,TY2 CL3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Pitch in Millimeters | 1.25 |
| Thread Length | 22.0 MILLIMETERS NOMINAL MM |
| Nominal Thread Diameter | 8.0 MILLIMETERS MM |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 12.73 MILLIMETERS MINIMUM AND 13.00 MILLIMETERS MAXIMUM MM |
| Surface Treatment | ZINC AND CHROMATE OVERALL |
| Material | STEEL PROPERTY CLASS 10.9 OVERALL |
| Thread Series Designator | M |
| 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 |
|---|---|
| AES07M08B040WB9AA1 | American Society of Mechanical Engineers Inc (USA) |
| Reference | Meaning |
|---|---|
| 12485434-096 | C/1 Advisory reference — outside the item-of-supply concept U S Army Tank Automotive Command Amsta-Im-Mm |
| 12485434-096 | 5/9 Secondary reference Bae Systems Tactical Vehicle Systems Lp Dba Data Systems International Inc |
| B18231B08040N | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-01-338-8012 is a Screw,cap,hexagon Head, manufactured by American Society of Mechanical Engineers Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-338-8012 has 1 manufacturer part number on file: AES07M08B040WB9AA1 (American Society of Mechanical Engineers Inc).
Key specifications for AES07M08B040WB9AA1: Head Height: 5.1 MILLIMETERS MINIMUM AND 5.5 MILLIMETERS MAXIMUM MM; External Thread Tolerance Class: 6G G; Fastener Length: 39.5 MILLIMETERS MINIMUM AND 40.5 MILLIMETERS MAXIMUM MM; Surface Treatment Document and Classification: QQ-Z-325,TY2 CL3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL. 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.