The Stud,self-Locking, cataloged under National Stock Number 5307-01-357-7420, is classified within Federal Supply Class 5307 (Studs) of the Hardware and Abrasives group. The manufacturer of record is Accurate Screw Machine Corp Div Accurate Screw Machine Corporation. Government technical data includes 13 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5307-01-357-7420 |
| Primary Part Number | 66554-.062-8-12 |
| Item Name | Stud,self-Locking |
| FSC / FSG | 5307 / 53 — Studs |
| Manufacturer | Accurate Screw Machine Corp Div Accurate Screw Machine Corporation |
| Status | ACTIVE |
| Thread Length | 0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN |
| Style Designator | SELF-LOCKING |
| Material Document and Classification | ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE |
| Thread Direction | RIGHT-HAND NUT THREAD |
| Nominal Thread Size | 0.112 INCHES NUT THREAD IN |
| Head Length | 0.054 INCHES MINIMUM AND 0.062 INCHES MAXIMUM IN |
| Locking Feature | SELF-CLINCHING HEAD |
| Thread Class | 2A NUT THREAD A |
| Thread Quantity Per Inch | 40 NUT THREAD |
| Material | STEEL CORROSION RESISTING |
| Distance Across Flats | 0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM IN |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) NUT THREAD |
| Head Diameter | 0.197 INCHES MINIMUM AND 0.201 INCHES MAXIMUM 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 |
|---|---|
| 66554-.062-8-12 PRIMARY | Accurate Screw Machine Corp Div Accurate Screw Machine Corporation (USA) |
| 339183-12 | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple (USA) |
| Reference | Meaning |
|---|---|
| 339183-12 | 7/9 Vendor item drawing reference Northrop Grumman Systems Corporation Div Es Defensive Systems Division |
NSN 5307-01-357-7420 is a Stud,self-Locking, manufactured by Accurate Screw Machine Corp Div Accurate Screw Machine Corporation, classified under FSC 5307, Studs. Status: active.
NSN 5307-01-357-7420 has 2 manufacturer part numbers on file: 66554-.062-8-12 (Accurate Screw Machine Corp Div Accurate Screw Machine Corporation), 339183-12 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple).
Key specifications for 66554-.062-8-12: Thread Length: 0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN; Style Designator: SELF-LOCKING; Material Document and Classification: ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE; Overall Length: 0.308 INCHES NOMINAL IN. 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.