The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-484-7993, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-484-7993 |
| Primary Part Number | 6817720 PC 5 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Fastener Length | 1.000 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | MIL-C-81751,TYPE I,CLASS 4 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Material Document and Classification | F-S-92,TYPE IV,STYLE2S FED SPEC 5TH MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.625 INCHES IN |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | CERAMIC OVERALL |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 11 |
| Material | STEEL CORROSION RESISTING 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 | X |
| Part Number | Manufacturer |
|---|---|
| 6817720 PC 5 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 122-6817720 PC 5 | 5/9 Secondary reference Naval Sea Systems Command |
NSN 5305-01-484-7993 is a Screw,cap,socket Head, manufactured by Naval Sea Systems Command, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-484-7993 has 1 manufacturer part number on file: 6817720 PC 5 (Naval Sea Systems Command).
Key specifications for 6817720 PC 5: Fastener Length: 1.000 INCHES NOMINAL IN; Surface Treatment Document and Classification: MIL-C-81751,TYPE I,CLASS 4 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Material Document and Classification: F-S-92,TYPE IV,STYLE2S FED SPEC 5TH MATERIAL RESPONSE OVERALL; Nominal Thread Diameter: 0.625 INCHES IN. 10 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.