The Screw,assembled Washer, cataloged under National Stock Number 5305-01-727-5641, 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 21 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-727-5641 |
| Primary Part Number | AEMY1M08B025WC4QX2 |
| Item Name | Screw,assembled Washer |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | The American Society of Mechanical Engineers |
| Status | ACTIVE |
| Head Height | 4.6 MILLIMETERS NOMINAL MM |
| Fastener Length | 25.0 MILLIMETERS NOMINAL MM |
| Surface Treatment Document and Classification | MIL-PRF-32647, ZN-NI ALLOY, HEXAVALENT CHROMIUM FREE, TYPE K16 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Pitch in Millimeters | 1.25 |
| Thread Length | 25.0 MILLIMETERS NOMINAL MM |
| Material Document and Classification | ISO 898-1 PROPERTY CLASS 4.8 INTERNATIONAL STD/SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 8.0 MILLIMETERS MM |
| Head Style | FLAT COUNTERSUNK |
| Primary Washer Style | FLAT EXTERNAL TEETH |
| Thread Direction | RIGHT-HAND |
| Primary Washer Material Thickness | 0.55 MILLIMETERS MINIMUM AND 0.70 MILLIMETERS MAXIMUM MM |
| Specification/standard Data | 05047-ASME B18.24-2023 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Surface Treatment | ZINC NICKEL OVERALL |
| Strength Grade Designation | 4.8 |
| Internal Drive Style | CROSS RECESS TYPE 1 |
| Countersink Angle | 90.0 DEGREES MINIMUM AND 92.0 DEGREES MAXIMUM |
| Thread Class | 6G G |
| Material | STEEL OVERALL |
| Thread Series Designator | M |
| Washer Quantity | 1 |
| Head Diameter | 16.50 MILLIMETERS MINIMUM AND 17.30 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 |
|---|---|
| AEMY1M08B025WC4QX2 PRIMARY | The American Society of Mechanical Engineers (USA) |
NSN 5305-01-727-5641 is a Screw,assembled Washer, manufactured by The American Society of Mechanical Engineers, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-727-5641 has 1 manufacturer part number on file: AEMY1M08B025WC4QX2 (The American Society of Mechanical Engineers).
Key specifications for AEMY1M08B025WC4QX2: Head Height: 4.6 MILLIMETERS NOMINAL MM; Fastener Length: 25.0 MILLIMETERS NOMINAL MM; Surface Treatment Document and Classification: MIL-PRF-32647, ZN-NI ALLOY, HEXAVALENT CHROMIUM FREE, TYPE K16 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Pitch in Millimeters: 1.25. 21 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.