The Stud,shouldered, cataloged under National Stock Number 5307-01-556-7345, is classified within Federal Supply Class 5307 (Studs) of the Hardware and Abrasives group. The manufacturer of record is Nd Defense Llc. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5307-01-556-7345 |
| Primary Part Number | 1838845C1 |
| Item Name | Stud,shouldered |
| FSC / FSG | 5307 / 53 — Studs |
| Manufacturer | Nd Defense Llc |
| Status | ACTIVE |
| Surface Treatment Document and Classification | EMS G-20, CLASS 5A MFR REF 2ND TREATMENT RESPONSE OVERALL A |
| Extended Washer Diameter | 20.8 MILLIMETERS NOMINAL MM |
| Style Designator | SHOULDERED |
| Material Document and Classification | EMS A-31, PART 1 MFR REF 2ND MATERIAL RESPONSE |
| Surface Treatment | ZINC OVERALL |
| Material | STEEL |
| Distance Across Flats | 12.5 MILLIMETERS MINIMUM AND 13.0 MILLIMETERS MAXIMUM MM |
| Thread Series Designator | ISO M 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 |
|---|---|
| 1838845C1 PRIMARY | Nd Defense Llc (USA) |
NSN 5307-01-556-7345 is a Stud,shouldered, manufactured by Nd Defense Llc, classified under FSC 5307, Studs. Status: active.
NSN 5307-01-556-7345 has 1 manufacturer part number on file: 1838845C1 (Nd Defense Llc).
Key specifications for 1838845C1: Surface Treatment Document and Classification: EMS G-20, CLASS 5A MFR REF 2ND TREATMENT RESPONSE OVERALL A; Extended Washer Diameter: 20.8 MILLIMETERS NOMINAL MM; Style Designator: SHOULDERED; Material Document and Classification: EMS A-31, PART 1 MFR REF 2ND MATERIAL RESPONSE. 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.