The Stud,shouldered and Stepped, cataloged under National Stock Number 5307-01-437-0018, is classified within Federal Supply Class 5307 (Studs) of the Hardware and Abrasives group. The manufacturer of record is Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate. Government technical data includes 13 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 | 5307-01-437-0018 |
| Primary Part Number | 1293363 |
| Item Name | Stud,shouldered and Stepped |
| FSC / FSG | 5307 / 53 — Studs |
| Manufacturer | Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate |
| Status | ACTIVE |
| Surface Treatment Document and Classification | STM B633 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 1.235 INCHES MINIMUM AND 1.265 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN |
| Style Designator | SHOULDERED AND STEPPED |
| Material Document and Classification | STM A322 ASSN STD SINGLE MATERIAL RESPONSE OR STM A331 ASSN STD SINGLE MATERIAL RESPONSE |
| Thread Direction | RIGHT-HAND LOCATION NOT OTHERWISE SPECIFIED |
| Nominal Thread Size | 0.500 INCHES LOCATION NOT OTHERWISE SPECIFIED IN |
| Surface Treatment | ZINC OVERALL |
| Thread Class | 2A LOCATION NOT OTHERWISE SPECIFIED A |
| Thread Quantity Per Inch | 13 LOCATION NOT OTHERWISE SPECIFIED |
| Material | STEEL COMP 1330 OR STEEL COMP 4140 OR STEEL COMP 8630 |
| Distance Across Flats | 0.735 INCHES MINIMUM AND 0.765 INCHES MAXIMUM IN |
| Shoulder Length | 1.735 INCHES MINIMUM AND 1.765 INCHES MAXIMUM IN |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) LOCATION NOT OTHERWISE SPECIFIED |
| 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 |
|---|---|
| 1293363 PRIMARY | Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate (USA) |
NSN 5307-01-437-0018 is a Stud,shouldered and Stepped, manufactured by Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate, classified under FSC 5307, Studs. Status: active.
NSN 5307-01-437-0018 has 1 manufacturer part number on file: 1293363 (Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate).
Key specifications for 1293363: Surface Treatment Document and Classification: STM B633 ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 1.235 INCHES MINIMUM AND 1.265 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN; Style Designator: SHOULDERED AND STEPPED; Material Document and Classification: STM A322 ASSN STD SINGLE MATERIAL RESPONSE OR STM A331 ASSN STD SINGLE MATERIAL RESPONSE. 13 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.