The Setscrew, cataloged under National Stock Number 5305-01-641-6429, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Sae International Dba Sae International. Government technical data includes 8 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-641-6429 |
| Primary Part Number | J2656C12HF12S1 |
| Item Name | Setscrew |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Sae International Dba Sae International |
| Status | ACTIVE |
| Fastener Length | 0.750 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.750 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 10 |
| Material | STEEL CORROSION RESISTING OVERALL |
| 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 |
|---|---|
| J2656C12HF12S1 PRIMARY | Sae International Dba Sae International (USA) |
| 167-8395675 ITEM 10 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| J2656C12HF12S1 | 3/9 Design control — primary reference U.S. Government activity |
| 167-8395675 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 5305-01-641-6429 is a Setscrew, manufactured by Sae International Dba Sae International, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-641-6429 has 2 manufacturer part numbers on file: J2656C12HF12S1 (Sae International Dba Sae International), 167-8395675 ITEM 10 (Naval Sea Systems Command).
2 possible matches (shared part number, not a government interchangeability claim): 5360-01-641-7749, 5360-01-641-9894. Verify interchangeability with system specifications before substitution.
Key specifications for J2656C12HF12S1: Fastener Length: 0.750 INCHES NOMINAL IN; Nominal Thread Diameter: 0.750 INCHES IN; Head Style: HEXAGON; Thread Direction: RIGHT-HAND. 8 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.