The Stud,locked in, cataloged under National Stock Number 5307-01-019-2523, is classified within Federal Supply Class 5307 (Studs) of the Hardware and Abrasives group. Government technical data includes 20 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5307-01-019-2523 |
| Item Name | Stud,locked in |
| FSC / FSG | 5307 / 53 — Studs |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Distance From Serrated Portion to Nut End | 0.985 INCHES MINIMUM AND 1.015 INCHES MAXIMUM IN |
| Thread Length | 0.620 INCHES NOMINAL NUT THREAD IN |
| Thread Length | 0.520 INCHES NOMINAL STUD THREAD IN |
| Style Designator | LOCKED IN |
| Material Document and Classification | ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE |
| Distance From Serrated Portion to End of Stud Thread | 0.230 INCHES NOMINAL IN |
| Serration Included Angle | 102.0 DEGREES NOMINAL |
| Thread Direction | RIGHT-HAND STUD THREAD |
| Thread Direction | RIGHT-HAND NUT THREAD |
| Nominal Thread Size | 0.375 INCHES NUT THREAD IN |
| Distance From Serrated Portion to Stud End | 0.750 INCHES NOMINAL IN |
| Locking Feature | RING, LOCK SERRATED |
| Serration Quantity | 24 |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 3A NUT THREAD A |
| Thread Class | 3A STUD THREAD A |
| Thread Quantity Per Inch | 16 NUT THREAD |
| Material | STEEL COMP 303 |
| 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 |
| Reference | Meaning |
|---|---|
| SC121-12SM16A | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| R9W1530-156PC2 | C/1 Advisory reference — outside the item-of-supply concept Falls Filtration Technologies, Inc. |
| SC121-12SM16A | 3/2 Design control — primary reference U.S. Government activity |
NSN 5307-01-019-2523 is a Stud,locked in, classified under FSC 5307, Studs. Status: active.
Key specifications for 5307-01-019-2523: Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Distance From Serrated Portion to Nut End: 0.985 INCHES MINIMUM AND 1.015 INCHES MAXIMUM IN; Thread Length: 0.620 INCHES NOMINAL NUT THREAD IN; Thread Length: 0.520 INCHES NOMINAL STUD THREAD IN. 20 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.