The Stud,continuous Thread, cataloged under National Stock Number 5307-01-431-4239, 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 2 specifications, cited from the U.S. Government catalog. The record lists 8 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 19 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5307-01-431-4239 |
| Primary Part Number | 11940-F-18 ITEM 178CL1 |
| Item Name | Stud,continuous Thread |
| FSC / FSG | 5307 / 53 — Studs |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Criticality Code Justification | ZZZY |
| Reference Number Differentiating Characteristics | MATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I 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 |
|---|---|
| 11940-F-18 ITEM 178CL1 | Naval Inventory Control Point Mechanicsburg (USA) |
| PL-10591-H-18 ITEM 178CL1 | Naval Inventory Control Point Mechanicsburg (USA) |
| B-050D178X17L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 10565-B-18L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 10591-H-18 PIECE 178CL1 | Naval Inventory Control Point Mechanicsburg (USA) |
| PL-10591-F-18 ITEM 178CL1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 10591-H-18 ITEM 178CL1 | Naval Inventory Control Point Mechanicsburg (USA) |
| PL-10591-F-18 PIECE 178CL1 | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| PL-11940-F-18 ITEM 178C | 5/1 Secondary reference Curtiss-Wright Electro-Mechanical Corporation Div Epd |
| PL-11940-F-18 ITEM 178CL1 | 5/1 Secondary reference Naval Inventory Control Point Mechanicsburg |
| 10591-H-18 PIECE 178C | 5/1 Secondary reference Curtiss-Wright Electro-Mechanical Corporation Div Epd |
| 10591-H-18 ITEM 178C | 5/1 Secondary reference Curtiss-Wright Electro-Mechanical Corporation Div Epd |
| 10565-B-18 | 5/1 Secondary reference Curtiss-Wright Electro-Mechanical Corporation Div Epd |
| 10591-H-18 ITEM 178C | 5/9 Secondary reference U.S. Government activity |
| 11940-F-18 ITEM 178C | 5/9 Secondary reference U.S. Government activity |
| PL-11940-F-18 ITEM 178C | 5/9 Secondary reference U.S. Government activity |
| PL-10591-H-18 ITEM 178C | 5/1 Secondary reference Curtiss-Wright Electro-Mechanical Corporation Div Epd |
| 10565-B-18 | 5/9 Secondary reference U.S. Government activity |
| 10591-H-18 PIECE 178C | 5/9 Secondary reference U.S. Government activity |
| B-050D178X17 | 5/9 Secondary reference U.S. Government activity |
| PL-10591-F-18 ITEM 178C | 5/9 Secondary reference U.S. Government activity |
| PL-10591-F-18 PIECE 178C | 5/9 Secondary reference U.S. Government activity |
| PL-10591-H-18 ITEM 178C | 5/9 Secondary reference U.S. Government activity |
| PL-10591-F-18 ITEM 178C | 5/1 Secondary reference Curtiss-Wright Electro-Mechanical Corporation Div Epd |
| 11940-F-18 ITEM 178C | 5/1 Secondary reference Curtiss-Wright Electro-Mechanical Corporation Div Epd |
| B-050D178X17 | 3/1 Design control — primary reference Curtiss-Wright Electro-Mechanical Corporation Div Epd |
| PL-10591-F-18 PIECE 178C | 5/1 Secondary reference Curtiss-Wright Electro-Mechanical Corporation Div Epd |
NSN 5307-01-431-4239 is a Stud,continuous Thread, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 5307, Studs. Status: active.
NSN 5307-01-431-4239 has 8 manufacturer part numbers on file: 11940-F-18 ITEM 178CL1 (Naval Inventory Control Point Mechanicsburg), PL-10591-H-18 ITEM 178CL1 (Naval Inventory Control Point Mechanicsburg), B-050D178X17L1 (Naval Inventory Control Point Mechanicsburg), 10565-B-18L1 (Naval Inventory Control Point Mechanicsburg), 10591-H-18 PIECE 178CL1 (Naval Inventory Control Point Mechanicsburg) and 3 more.
1 possible match (shared part number, not a government interchangeability claim): 5310-01-431-4240. Verify interchangeability with system specifications before substitution.
Key specifications for 11940-F-18 ITEM 178CL1: Criticality Code Justification: ZZZY; End Item Identification: PUMP,CTFGL; Reference Number Differentiating Characteristics: MATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS. 2 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.