The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-01-301-4381, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 13 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-301-4381 |
| Item Name | Screw,cap,hexagon Head |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Fastener Length | 4.500 INCHES MAXIMUM IN |
| Criticality Code Justification | ZZZY |
| Hole Configuration Style | HEXAGON CORNERS |
| Material Document and Classification | MIL-DTL-1222, TY 1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 1.500 INCHES IN |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 6 |
| Material | NICKEL ALLOY OVERALL |
| Hole Quantity | 3 |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Hole Type | DRILLED |
| Hole Diameter | 0.094 INCHES NOMINAL IN |
| Reference Number Differentiating Characteristics | MATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Reference | Meaning |
|---|---|
| 300-4684413 ITEM 3 | 3/1 Design control — primary reference U.S. Government activity |
| 300-4684413 ITEM 3L1 | 5/1 Secondary reference Naval Inventory Control Point Mechanicsburg |
NSN 5305-01-301-4381 is a Screw,cap,hexagon Head, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-01-301-4381: Fastener Length: 4.500 INCHES MAXIMUM IN; Criticality Code Justification: ZZZY; Hole Configuration Style: HEXAGON CORNERS; Material Document and Classification: MIL-DTL-1222, TY 1 MIL SPEC SINGLE MATERIAL 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.