The Stud,locked in, cataloged under National Stock Number 5307-00-946-4255, 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 18 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5307-00-946-4255 |
| Primary Part Number | S234-3-514A |
| Item Name | Stud,locked in |
| FSC / FSG | 5307 / 53 — Studs |
| Manufacturer | Stanley Engineered Fastening Llc |
| Status | ACTIVE |
| Thread Length | 0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM NUT THREAD IN |
| Thread Length | 0.276 INCHES NOMINAL STUD THREAD IN |
| Style Designator | LOCKED IN |
| Material Document and Classification | MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE |
| Thread Direction | RIGHT-HAND STUD THREAD |
| Thread Direction | RIGHT-HAND NUT THREAD |
| Nominal Thread Size | 0.250 INCHES STUD THREAD IN |
| Nominal Thread Size | 0.190 INCHES NUT THREAD IN |
| Locking Feature | RING, LOCK KEYED |
| Surface Treatment | CADMIUM OVERALL |
| Thread Class | 3A NUT THREAD A |
| Thread Class | 3A STUD THREAD A |
| Distance From Shoulder Portion to Nut End | 0.250 INCHES NOMINAL IN |
| Thread Quantity Per Inch | 32 NUT THREAD |
| Thread Quantity Per Inch | 20 STUD THREAD |
| Shoulder Length | 0.037 INCHES MINIMUM AND 0.042 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 |
| Part Number | Manufacturer |
|---|---|
| S234-3-514A PRIMARY | Stanley Engineered Fastening Llc (USA) |
| Reference | Meaning |
|---|---|
| 881B-3MB0875 | 3/9 Design control — primary reference Stanley Engineered Fastening Llc |
| 682-514-9011 | 7/2 Vendor item drawing reference Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) |
| 682-514-9011 | 5/2 Secondary reference U.S. Government activity |
NSN 5307-00-946-4255 is a Stud,locked in, manufactured by Stanley Engineered Fastening Llc, classified under FSC 5307, Studs. Status: active.
NSN 5307-00-946-4255 has 1 manufacturer part number on file: S234-3-514A (Stanley Engineered Fastening Llc).
Key specifications for S234-3-514A: Thread Length: 0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM NUT THREAD IN; Thread Length: 0.276 INCHES NOMINAL STUD THREAD IN; Style Designator: LOCKED IN; Material Document and Classification: MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE. 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.