The Stud,plain, cataloged under National Stock Number 5307-01-530-7399, is classified within Federal Supply Class 5307 (Studs) of the Hardware and Abrasives group. The manufacturer of record is Curtiss-Wright Electro-Mechanical Corporation Div Epd. Government technical data includes 7 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5307-01-530-7399 |
| Primary Part Number | 398690-01 |
| Item Name | Stud,plain |
| FSC / FSG | 5307 / 53 — Studs |
| Manufacturer | Curtiss-Wright Electro-Mechanical Corporation Div Epd |
| Status | ACTIVE |
| Thread Length | 1.687 INCHES NOMINAL STUD THREAD IN |
| Thread Direction | RIGHT-HAND NUT THREAD |
| Nominal Thread Size | 1.125 INCHES STUD THREAD IN |
| Nominal Thread Size | 1.125 INCHES NUT THREAD IN |
| Material | COPPER AND ALUMINUM AND NICKEL ALLOY |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) STUD THREAD |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) NUT THREAD |
| 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 |
|---|---|
| RY-166400 ITEM 1.2 | Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA) |
| 398690-01 PRIMARY | Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA) |
| Reference | Meaning |
|---|---|
| 398690-01 | 3/9 Design control — primary reference U.S. Government activity |
| RY-166400 ITEM 1.2 | 5/9 Secondary reference U.S. Government activity |
NSN 5307-01-530-7399 is a Stud,plain, manufactured by Curtiss-Wright Electro-Mechanical Corporation Div Epd, classified under FSC 5307, Studs. Status: active.
NSN 5307-01-530-7399 has 2 manufacturer part numbers on file: RY-166400 ITEM 1.2 (Curtiss-Wright Electro-Mechanical Corporation Div Epd), 398690-01 (Curtiss-Wright Electro-Mechanical Corporation Div Epd).
1 possible match (shared part number, not a government interchangeability claim): 5307-01-641-2959. Verify interchangeability with system specifications before substitution.
Key specifications for 398690-01: Thread Length: 1.687 INCHES NOMINAL STUD THREAD IN; Overall Length: 9.250 INCHES NOMINAL IN; Thread Direction: RIGHT-HAND NUT THREAD; Nominal Thread Size: 1.125 INCHES STUD THREAD IN. 7 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.