The Stud,locked in, cataloged under National Stock Number 5307-00-979-7817, is classified within Federal Supply Class 5307 (Studs) of the Hardware and Abrasives group. The manufacturer of record is Hamilton Sundstrand Corporation Dba Collins Aerospace. Government technical data includes 18 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5307-00-979-7817 |
| Primary Part Number | 557130 |
| Item Name | Stud,locked in |
| FSC / FSG | 5307 / 53 — Studs |
| Manufacturer | Hamilton Sundstrand Corporation Dba Collins Aerospace |
| Status | ACTIVE |
| Thread Length | 0.660 INCHES NOMINAL NUT THREAD IN |
| Thread Length | 0.381 INCHES MINIMUM AND 0.398 INCHES MAXIMUM STUD THREAD IN |
| Style Designator | LOCKED IN |
| Thread Direction | RIGHT-HAND STUD THREAD |
| Thread Direction | RIGHT-HAND NUT THREAD |
| Nominal Thread Size | 0.375 INCHES STUD THREAD IN |
| Nominal Thread Size | 0.250 INCHES NUT THREAD IN |
| Shoulder Diameter | 0.290 INCHES NOMINAL IN |
| Locking Feature | KEY INSERTS |
| Thread Class | 3A NUT THREAD A |
| Thread Class | 3A STUD THREAD A |
| Distance From Shoulder Portion to Nut End | 0.750 INCHES NOMINAL IN |
| Thread Quantity Per Inch | 16 STUD THREAD |
| Thread Quantity Per Inch | 28 NUT THREAD |
| Material | STEEL COMP 416 |
| Shoulder Length | 0.045 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN |
| Thread Series Designator | UNF NUT THREAD |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) STUD THREAD |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 5307-00-979-7817 is a Stud,locked in, manufactured by Hamilton Sundstrand Corporation Dba Collins Aerospace, classified under FSC 5307, Studs. Status: active.
NSN 5307-00-979-7817 has 2 manufacturer part numbers on file: 557130 (Hamilton Sundstrand Corporation Dba Collins Aerospace), 557130 (Ontic Engineering & Manufacturing, Inc Dba Ontic Us).
Key specifications for 557130: Thread Length: 0.660 INCHES NOMINAL NUT THREAD IN; Thread Length: 0.381 INCHES MINIMUM AND 0.398 INCHES MAXIMUM STUD THREAD IN; Style Designator: LOCKED IN; Overall Length: 1.176 INCHES MINIMUM AND 1.198 INCHES MAXIMUM IN. 18 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.