The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-01-300-6263, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 17 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-300-6263 |
| Primary Part Number | AS2-507-01 |
| Item Name | Screw,cap,hexagon Head |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Head Height | 3.85 MILLIMETERS MINIMUM AND 4.15 MILLIMETERS MAXIMUM MM |
| External Thread Tolerance Class | 6G G |
| Fastener Length | 15.60 MILLIMETERS MINIMUM AND 16.40 MILLIMETERS MAXIMUM MM |
| Surface Treatment Document and Classification | QQ-Z-325,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Pitch in Millimeters | 1.0 |
| Thread Length | 13.6 MILLIMETERS MINIMUM AND 16.4 MILLIMETERS MAXIMUM MM |
| Hardness Rating | 33.0 ROCKWELL C MINIMUM AND 39.0 ROCKWELL C MAXIMUM OVERALL |
| Material Document and Classification | ANSI B18.2.3.1M,PROPERTY CL 10.9 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 6.0 MILLIMETERS MM |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 9.78 MILLIMETERS MINIMUM AND 10.00 MILLIMETERS MAXIMUM MM |
| Surface Treatment | ZINC AND CHROMATE OVERALL |
| Minimum Tensile Strength | 1040 MEGAPASCALS |
| Minimum Yield Strength | 940 MEGAPASCALS |
| 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 |
|---|---|
| AS2-507-01 | CAGE A01PJ |
| Reference | Meaning |
|---|---|
| B18231B06015N | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| B18231B06016N | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-01-300-6263 is a Screw,cap,hexagon Head, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-300-6263 has 1 manufacturer part number on file: AS2-507-01.
Key specifications for AS2-507-01: Head Height: 3.85 MILLIMETERS MINIMUM AND 4.15 MILLIMETERS MAXIMUM MM; External Thread Tolerance Class: 6G G; Fastener Length: 15.60 MILLIMETERS MINIMUM AND 16.40 MILLIMETERS MAXIMUM MM; Surface Treatment Document and Classification: QQ-Z-325,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL. 17 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.