The Stud,locked in, cataloged under National Stock Number 5307-00-780-1141, is classified within Federal Supply Class 5307 (Studs) of the Hardware and Abrasives group. The manufacturer of record is Stanley Engineered Fastening Llc. Government technical data includes 22 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5307-00-780-1141 |
| Primary Part Number | 878B-3SD-0688 |
| Item Name | Stud,locked in |
| FSC / FSG | 5307 / 53 — Studs |
| Manufacturer | Stanley Engineered Fastening Llc |
| Status | ACTIVE |
| Cotter Pin Hole Diameter | 0.070 INCHES NOMINAL FIRST HOLE IN |
| Thread Length | 0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM NUT THREAD IN |
| Thread Length | 0.330 INCHES MINIMUM AND 0.335 INCHES MAXIMUM STUD THREAD IN |
| Hardness Rating | 30.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM |
| Style Designator | LOCKED IN |
| Material Document and Classification | AISI ASSN STD SINGLE MATERIAL RESPONSE |
| Thread Direction | RIGHT-HAND STUD THREAD |
| Thread Direction | RIGHT-HAND NUT THREAD |
| Nominal Thread Size | 0.312 INCHES STUD THREAD IN |
| Nominal Thread Size | 0.190 INCHES NUT THREAD IN |
| Shoulder Diameter | 0.125 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 | 0.678 INCHES MINIMUM AND 0.698 INCHES MAXIMUM IN |
| Thread Quantity Per Inch | 32 NUT THREAD |
| Thread Quantity Per Inch | 18 STUD THREAD |
| Material | STEEL COMP 416 |
| Shoulder Length | 0.040 INCHES MINIMUM AND 0.045 INCHES MAXIMUM IN |
| Thread Series Designator | UNF NUT THREAD |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) STUD THREAD |
| Distance From Cotter Pin Hole Centerline to Nut End | 0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM FIRST HOLE 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 |
|---|---|
| 69823C10-11 | Hamilton Sundstrand Corporation Dba Collins Aerospace (USA) |
| 878B-3SD-0688 PRIMARY | Stanley Engineered Fastening Llc (USA) |
| Reference | Meaning |
|---|---|
| 878B-3SD-687 | 5/9 Secondary reference Stanley Engineered Fastening Llc |
NSN 5307-00-780-1141 is a Stud,locked in, manufactured by Stanley Engineered Fastening Llc, classified under FSC 5307, Studs. Status: active.
NSN 5307-00-780-1141 has 2 manufacturer part numbers on file: 69823C10-11 (Hamilton Sundstrand Corporation Dba Collins Aerospace), 878B-3SD-0688 (Stanley Engineered Fastening Llc).
Key specifications for 878B-3SD-0688: Cotter Pin Hole Diameter: 0.070 INCHES NOMINAL FIRST HOLE IN; Thread Length: 0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM NUT THREAD IN; Thread Length: 0.330 INCHES MINIMUM AND 0.335 INCHES MAXIMUM STUD THREAD IN; Hardness Rating: 30.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM. 22 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.