The Stud,plain, cataloged under National Stock Number 5307-01-252-1730, is classified within Federal Supply Class 5307 (Studs) of the Hardware and Abrasives group. The manufacturer of record is Naval Inventory Control Point Mechanicsburg. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 6 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 10 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5307-01-252-1730 |
| Primary Part Number | RY-189779 ITEM 1.2L1 |
| Item Name | Stud,plain |
| FSC / FSG | 5307 / 53 — Studs |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Criticality Code Justification | ZZZY |
| Material Document and Classification | ASTM B 348,GR 5 ASSN STD SINGLE MATERIAL RESPONSE |
| Nominal Thread Size | 0.750 INCHES STUD THREAD IN |
| Surface Treatment | ANODIZE OVERALL |
| Thread Quantity Per Inch | 10 STUD THREAD |
| Material | TITANIUM ALLOY |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) STUD THREAD |
| Reference Number Differentiating Characteristics | QUALITY CONTROL IAW NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| RY-189779 ITEM 1.2L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 404234-00L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 404234-00PHL1 | Naval Inventory Control Point Mechanicsburg (USA) |
| RY-181352 ITEM 1.2L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| SK-204234L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| RW-189940ITEM1.2L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| RW-189940 ITEM 1.2 | 5/9 Secondary reference U.S. Government activity |
| SK-204234 | 5/9 Secondary reference U.S. Government activity |
| 404234-00 | 5/9 Secondary reference U.S. Government activity |
| RY-181352 ITEM 1.2 | 5/9 Secondary reference U.S. Government activity |
| 404234-00 | C/1 Advisory reference — outside the item-of-supply concept Curtiss-Wright Electro-Mechanical Corporation Div Epd |
| RY-189779 ITEM 1.2 | 5/9 Secondary reference U.S. Government activity |
| RW-189940ITEM1.2 | 5/9 Secondary reference U.S. Government activity |
| RY-189779 ITEM 1.2 | C/1 Advisory reference — outside the item-of-supply concept Curtiss-Wright Electro-Mechanical Corporation Div Epd |
| 404234-00PH | 3/9 Design control — primary reference U.S. Government activity |
| RW-189940 ITEM 1.2 | C/1 Advisory reference — outside the item-of-supply concept Curtiss-Wright Electro-Mechanical Corporation Div Epd |
NSN 5307-01-252-1730 is a Stud,plain, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 5307, Studs. Status: active.
NSN 5307-01-252-1730 has 6 manufacturer part numbers on file: RY-189779 ITEM 1.2L1 (Naval Inventory Control Point Mechanicsburg), 404234-00L1 (Naval Inventory Control Point Mechanicsburg), 404234-00PHL1 (Naval Inventory Control Point Mechanicsburg), RY-181352 ITEM 1.2L1 (Naval Inventory Control Point Mechanicsburg), SK-204234L1 (Naval Inventory Control Point Mechanicsburg) and 1 more.
1 possible match (shared part number, not a government interchangeability claim): 5305-01-382-5022. Verify interchangeability with system specifications before substitution.
Key specifications for RY-189779 ITEM 1.2L1: Criticality Code Justification: ZZZY; Material Document and Classification: ASTM B 348,GR 5 ASSN STD SINGLE MATERIAL RESPONSE; Overall Length: 4.250 INCHES NOMINAL IN; Nominal Thread Size: 0.750 INCHES STUD THREAD IN. 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.