The Stud,self-Locking, cataloged under National Stock Number 5307-01-295-9677, is classified within Federal Supply Class 5307 (Studs) of the Hardware and Abrasives group. The manufacturer of record is Marvin Engineering Co, Inc. Government technical data includes 15 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5307-01-295-9677 |
| Primary Part Number | 7019728 |
| Item Name | Stud,self-Locking |
| FSC / FSG | 5307 / 53 — Studs |
| Manufacturer | Marvin Engineering Co, Inc |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-35,TYPE 1,2,OR 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.625 INCHES NOMINAL STUD THREAD IN |
| Style Designator | SELF-LOCKING |
| Material Document and Classification | AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE |
| Thread Direction | RIGHT-HAND STUD THREAD |
| Nominal Thread Size | 0.500 INCHES STUD THREAD IN |
| Head Length | 0.755 INCHES NOMINAL IN |
| Locking Feature | SELF-CLINCHING HEAD |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 3A STUD THREAD A |
| Thread Quantity Per Inch | 20 STUD THREAD |
| Material | STEEL COMP XM-13 |
| Distance Across Flats | 0.865 INCHES NOMINAL IN |
| Thread Series Designator | UNF STUD THREAD |
| Head Diameter | 0.865 INCHES NOMINAL IN |
| 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 |
|---|---|
| 7019728 | Bk Manufacturing Co Inc Dba Bk Aerospace (USA) |
| 7019728 PRIMARY | Marvin Engineering Co, Inc (USA) |
| Reference | Meaning |
|---|---|
| 7019728 | 5/2 Secondary reference U.S. Government activity |
| 10176978 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 5307PL0886183 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 5307-01-295-9677 is a Stud,self-Locking, manufactured by Marvin Engineering Co, Inc, classified under FSC 5307, Studs. Status: active.
NSN 5307-01-295-9677 has 2 manufacturer part numbers on file: 7019728 (Bk Manufacturing Co Inc Dba Bk Aerospace), 7019728 (Marvin Engineering Co, Inc).
2 possible matches (shared part number, not a government interchangeability claim): 8105-01-611-2184, 6150-01-652-3193. Verify interchangeability with system specifications before substitution.
Key specifications for 7019728: Surface Treatment Document and Classification: QQ-P-35,TYPE 1,2,OR 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.625 INCHES NOMINAL STUD THREAD IN; Style Designator: SELF-LOCKING; Material Document and Classification: AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE. 15 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.