The Screw,shoulder, cataloged under National Stock Number 5305-01-375-7154, 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 19 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5305-01-375-7154 |
| Primary Part Number | 123-6078026-DETAIL 19-B |
| Item Name | Screw,shoulder |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Width Across Flats | 0.312 INCHES NOMINAL IN |
| Head Height | 0.375 INCHES NOMINAL IN |
| Fastener Length | 2.000 INCHES NOMINAL IN |
| Shoulder Length | 1.250 INCHES NOMINAL FIRST SHOULDER IN |
| Shoulder Diameter | 0.621 INCHES MINIMUM AND 0.623 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.594 INCHES NOMINAL IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Material Document and Classification | QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE FASTENER |
| Nominal Thread Diameter | 0.500 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Locking Feature | PATCH OR PELLET OR STRIP THREADS |
| Internal Drive Style | HEXAGON |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 13 |
| Material | PLASTIC POLYAMIDE NYLON LOCKING FEATURE |
| Material | STEEL COMP 316 FASTENER |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.853 INCHES MINIMUM AND 0.875 INCHES MAXIMUM 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 |
|---|---|
| 123-6078026-DETAIL 19-B PRIMARY | Naval Sea Systems Command (USA) |
| 123-6078026 ITEM 48 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 123-6078026 DET AIL 19-B | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 5305-01-375-7154 is a Screw,shoulder, manufactured by Naval Sea Systems Command, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-375-7154 has 2 manufacturer part numbers on file: 123-6078026-DETAIL 19-B (Naval Sea Systems Command), 123-6078026 ITEM 48 (Naval Sea Systems Command).
Key specifications for 123-6078026-DETAIL 19-B: Width Across Flats: 0.312 INCHES NOMINAL IN; Head Height: 0.375 INCHES NOMINAL IN; Fastener Length: 2.000 INCHES NOMINAL IN; Shoulder Length: 1.250 INCHES NOMINAL FIRST SHOULDER IN. 19 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.