The Setscrew, cataloged under National Stock Number 5305-01-563-3478, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Klein Marine Systems Inc. Government technical data includes 6 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 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 | 5305-01-563-3478 |
| Primary Part Number | 12500843 |
| Item Name | Setscrew |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Klein Marine Systems Inc |
| Status | ACTIVE |
| Fastener Length | 50.0 MILLIMETERS NOMINAL MM |
| Nominal Thread Diameter | 6.0 MILLIMETERS MM |
| Thread Direction | RIGHT-HAND |
| Point Style | CUP |
| Material | STEEL COMP 304 OR STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | M |
| 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 |
|---|---|
| 12500843 PRIMARY | Klein Marine Systems Inc (USA) |
NSN 5305-01-563-3478 is a Setscrew, manufactured by Klein Marine Systems Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-563-3478 has 1 manufacturer part number on file: 12500843 (Klein Marine Systems Inc).
1 possible match (shared part number, not a government interchangeability claim): 2540-01-604-7799. Verify interchangeability with system specifications before substitution.
Key specifications for 12500843: Fastener Length: 50.0 MILLIMETERS NOMINAL MM; Nominal Thread Diameter: 6.0 MILLIMETERS MM; Thread Direction: RIGHT-HAND; Point Style: CUP. 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.