The Stud,recessed and Stepped, cataloged under National Stock Number 5307-00-810-4323, is classified within Federal Supply Class 5307 (Studs) of the Hardware and Abrasives group. The manufacturer of record is General Electric Company. Government technical data includes 16 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5307-00-810-4323 |
| Primary Part Number | 516D239P3 |
| Item Name | Stud,recessed and Stepped |
| FSC / FSG | 5307 / 53 — Studs |
| Manufacturer | General Electric Company |
| Status | ACTIVE |
| Surface Treatment Document and Classification | AMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.820 INCHES MINIMUM AND 0.860 INCHES MAXIMUM NUT THREAD IN |
| Thread Length | 0.800 INCHES MINIMUM AND 0.840 INCHES MAXIMUM STUD THREAD IN |
| Hardness Rating | 42.0 ROCKWELL C MINIMUM AND 46.0 ROCKWELL C MAXIMUM |
| Thread Pitch Diameters | +0.3810 TO 0.3875 INCHES STUD THREAD IN |
| Thread Direction | RIGHT-HAND STUD THREAD |
| Thread Direction | RIGHT-HAND NUT THREAD |
| Nominal Thread Size | 0.375 INCHES NUT THREAD IN |
| Nominal Thread Size | 0.438 INCHES STUD THREAD IN |
| Surface Treatment | CADMIUM OVERALL |
| Thread Class | 3A NUT THREAD A |
| Thread Quantity Per Inch | 24 NUT THREAD |
| Thread Quantity Per Inch | 14 STUD THREAD |
| Material | STEEL |
| Thread Series Designator | UNF NUT THREAD |
| Thread Series Designator | UNS STUD THREAD |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 5307-00-810-4323 is a Stud,recessed and Stepped, manufactured by General Electric Company, classified under FSC 5307, Studs. Status: active.
NSN 5307-00-810-4323 has 2 manufacturer part numbers on file: 516D239P3 (General Electric Company), 516D239P3 (General Electric Company).
Key specifications for 516D239P3: Surface Treatment Document and Classification: AMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.820 INCHES MINIMUM AND 0.860 INCHES MAXIMUM NUT THREAD IN; Thread Length: 0.800 INCHES MINIMUM AND 0.840 INCHES MAXIMUM STUD THREAD IN; Hardness Rating: 42.0 ROCKWELL C MINIMUM AND 46.0 ROCKWELL C MAXIMUM. 16 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.