The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-473-4897, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 12 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-473-4897 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Head Height | 4.05 MILLIMETERS MINIMUM AND 4.40 MILLIMETERS MAXIMUM MM |
| External Thread Tolerance Class | 4G6G |
| Fastener Length | 40.0 MILLIMETERS NOMINAL MM |
| Thread Pitch in Millimeters | 1.25 |
| Nominal Thread Diameter | 8.0 MILLIMETERS MM |
| Head Style | PAN NO. 2 |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | ZINC OVERALL |
| Internal Drive Style | HEXAGON |
| Material | STEEL PROPERTY CLASS 12.9 OVERALL |
| Thread Series Designator | ISO M |
| Head Diameter | 13.57 MILLIMETERS MINIMUM AND 14.00 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 |
| Reference | Meaning |
|---|---|
| G1934B08025N | 5/1 Secondary reference General Dynamics Land Systems Inc. |
| B1834B08025N | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-01-473-4897 is a Screw,cap,socket Head, classified under FSC 5305, Screws. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5305-01-623-4894. Verify interchangeability with system specifications before substitution.
Key specifications for 5305-01-473-4897: Head Height: 4.05 MILLIMETERS MINIMUM AND 4.40 MILLIMETERS MAXIMUM MM; External Thread Tolerance Class: 4G6G; Fastener Length: 40.0 MILLIMETERS NOMINAL MM; Thread Pitch in Millimeters: 1.25. 12 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.