The Screw,shoulder, cataloged under National Stock Number 5305-01-351-0792, 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 15 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-351-0792 |
| Primary Part Number | 801-6408788-20 |
| Item Name | Screw,shoulder |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Head Height | 0.115 INCHES MINIMUM AND 0.137 INCHES MAXIMUM IN |
| Fastener Length | 0.251 INCHES MINIMUM AND 0.273 INCHES MAXIMUM IN |
| Shoulder Length | 0.076 INCHES MINIMUM AND 0.088 INCHES MAXIMUM FIRST SHOULDER IN |
| Shoulder Diameter | 0.137 INCHES NOMINAL FIRST SHOULDER IN |
| Thread Length | 0.125 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Nominal Thread Diameter | 0.125 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Internal Drive Style | SLOT |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 40 |
| Material | NICKEL ALLOY OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.184 INCHES NOMINAL IN |
| 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 |
|---|---|
| 211057706 | Naval Sea Systems Command (USA) |
| 801-6408788-20 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| DF330649-FN-20 | 5/9 Secondary reference Huntington Ingalls Inc Div Newport News Shipbuilding |
| CC-N-281 | 4/1 Identification reference U.S. Government activity |
NSN 5305-01-351-0792 is a Screw,shoulder, manufactured by Naval Sea Systems Command, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-351-0792 has 2 manufacturer part numbers on file: 211057706 (Naval Sea Systems Command), 801-6408788-20 (Naval Sea Systems Command).
Key specifications for 801-6408788-20: Head Height: 0.115 INCHES MINIMUM AND 0.137 INCHES MAXIMUM IN; Fastener Length: 0.251 INCHES MINIMUM AND 0.273 INCHES MAXIMUM IN; Shoulder Length: 0.076 INCHES MINIMUM AND 0.088 INCHES MAXIMUM FIRST SHOULDER IN; Shoulder Diameter: 0.137 INCHES NOMINAL FIRST SHOULDER IN. 15 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.