The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-622-4354, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Naval Inventory Control Point Mechanicsburg. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5305-01-622-4354 |
| Primary Part Number | 0.875-9UNC-3AX2.500LG ALLOYSTLL1 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Criticality Code Justification | ZZZX |
| Nominal Thread Diameter | 0.875 INCHES IN |
| Thread Direction | RIGHT-HAND |
| Departure From Cited Designator | MATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS |
| Surface Treatment | CADMIUM OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 9 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| 0.875-9UNC-3AX2.500LG ALLOYSTLL1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 2300-446-PART NO 4L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 845-4457601 PART NO 4L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| 845-4457601 PART NO 4 | 5/1 Secondary reference Naval Sea Systems Command |
| 2300-446 PART NO 4 | 3/1 Design control — primary reference Huntington Ingalls Inc Div Newport News Shipbuilding |
| 0.875-9UNC-3AX2.500LG ALLOY STL | 4/1 Identification reference U.S. Government activity |
NSN 5305-01-622-4354 is a Screw,cap,socket Head, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-622-4354 has 3 manufacturer part numbers on file: 0.875-9UNC-3AX2.500LG ALLOYSTLL1 (Naval Inventory Control Point Mechanicsburg), 2300-446-PART NO 4L1 (Naval Inventory Control Point Mechanicsburg), 845-4457601 PART NO 4L1 (Naval Inventory Control Point Mechanicsburg).
Key specifications for 0.875-9UNC-3AX2.500LG ALLOYSTLL1: Criticality Code Justification: ZZZX; Nominal Thread Diameter: 0.875 INCHES IN; Thread Direction: RIGHT-HAND; Departure From Cited Designator: MATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS. 9 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.