The Screw,shoulder, cataloged under National Stock Number 5305-01-041-1978, 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 1 manufacturer part number 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-041-1978 |
| Primary Part Number | 810-1385834 11 |
| Item Name | Screw,shoulder |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Head Height | 0.125 INCHES NOMINAL IN |
| Fastener Length | 0.922 INCHES NOMINAL IN |
| Shoulder Length | 0.547 INCHES MAXIMUM FIRST SHOULDER IN |
| Shoulder Diameter | 0.438 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.297 INCHES NOMINAL IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Internal Drive Style | SLOT |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | COPPER ALLOY OVERALL |
| Thread Series Designator | UNF |
| Head Diameter | 0.625 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 |
|---|---|
| 810-1385834 11 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 810-1385834 PIECE 11 | 5/9 Secondary reference Naval Sea Systems Command |
| 810-1385834 PIE | C/1 Advisory reference — outside the item-of-supply concept Akron Brass Company |
NSN 5305-01-041-1978 is a Screw,shoulder, manufactured by Naval Sea Systems Command, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-041-1978 has 1 manufacturer part number on file: 810-1385834 11 (Naval Sea Systems Command).
1 possible match (shared part number, not a government interchangeability claim): 3040-01-049-8725. Verify interchangeability with system specifications before substitution.
Key specifications for 810-1385834 11: Head Height: 0.125 INCHES NOMINAL IN; Fastener Length: 0.922 INCHES NOMINAL IN; Shoulder Length: 0.547 INCHES MAXIMUM FIRST SHOULDER IN; Shoulder Diameter: 0.438 INCHES MAXIMUM 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.