The Screw,machine, cataloged under National Stock Number 5305-01-682-5953, 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 6 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5305-01-682-5953 |
| Primary Part Number | 803-1385789 TY C 4 IN PC 10 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Thread Direction | RIGHT-HAND |
| Screw Material | NICKEL ALLOY 400 OR NICKEL ALLOY R-405 |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 20 |
| 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 |
|---|---|
| 1385789/SHEET 1 PC 10 | Naval Sea Systems Command (USA) |
| 803-1385789 TY C 4 IN PC 10 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 803-1385789 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 5305-01-682-5953 is a Screw,machine, manufactured by Naval Sea Systems Command, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-682-5953 has 2 manufacturer part numbers on file: 1385789/SHEET 1 PC 10 (Naval Sea Systems Command), 803-1385789 TY C 4 IN PC 10 (Naval Sea Systems Command).
Key specifications for 803-1385789 TY C 4 IN PC 10: Nominal Thread Diameter: 0.250 INCHES IN; Thread Direction: RIGHT-HAND; Screw Material: NICKEL ALLOY 400 OR NICKEL ALLOY R-405; Special Features: LENGTH TO SUIT. 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.