The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-414-2850, 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 6 specifications, cited from the U.S. Government catalog. The record lists 5 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-414-2850 |
| Primary Part Number | 1-8UNRC-3A X 2 1/2L1 |
| 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 | 1.000 INCHES IN |
| Departure From Cited Designator | MATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 8 |
| Thread Series Designator | UNRC |
| 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 |
|---|---|
| 1-8UNRC-3A X 2 1/2L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| MIL-DTL-1222 TYPEII GRADEA574L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 6408789 FN 5L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 211059666L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 801-6408789 FN 5L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| 6408789 FN 5 | 5/1 Secondary reference Naval Sea Systems Command |
| 211059666 | 3/1 Design control — primary reference Naval Sea Systems Command |
| MIL-DTL-1222 TYPEII GRADEA574 | 4/1 Identification reference U.S. Government activity |
| 1-8UNRC-3A X 2 1/2 | 4/1 Identification reference U.S. Government activity |
| 801-6408789 FN 5 | 5/1 Secondary reference Naval Sea Systems Command |
NSN 5305-01-414-2850 is a Screw,cap,socket Head, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-414-2850 has 5 manufacturer part numbers on file: 1-8UNRC-3A X 2 1/2L1 (Naval Inventory Control Point Mechanicsburg), MIL-DTL-1222 TYPEII GRADEA574L1 (Naval Inventory Control Point Mechanicsburg), 6408789 FN 5L1 (Naval Inventory Control Point Mechanicsburg), 211059666L1 (Naval Inventory Control Point Mechanicsburg), 801-6408789 FN 5L1 (Naval Inventory Control Point Mechanicsburg).
Key specifications for 1-8UNRC-3A X 2 1/2L1: Criticality Code Justification: ZZZX; Nominal Thread Diameter: 1.000 INCHES IN; Departure From Cited Designator: MATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS; Thread Class: 3A A. 6 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.