The Stud,recessed, cataloged under National Stock Number 5307-01-665-9957, is classified within Federal Supply Class 5307 (Studs) of the Hardware and Abrasives group. The manufacturer of record is Saturn Fasteners Inc. Government technical data includes 16 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5307-01-665-9957 |
| Primary Part Number | 120-233-3L |
| Item Name | Stud,recessed |
| FSC / FSG | 5307 / 53 — Studs |
| Manufacturer | Saturn Fasteners Inc |
| Status | ACTIVE |
| Surface Treatment Document and Classification | SAE-AMS-QQ-P-416, TYPE II, CLASS 2 NATIONAL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.625 INCHES NOMINAL NUT THREAD B IN |
| Thread Length | 0.938 INCHES NOMINAL NUT THREAD A IN |
| Style Designator | RECESSED |
| Material Document and Classification | SAE-AMS6414 NATIONAL STD 1ST MATERIAL RESPONSE OR SAE-AMS6322 NATIONAL STD 2ND MATERIAL RESPONSE OR SAE-AMS6325 NATIONAL STD 2ND MATERIAL RESPONSE OR SAE-AMS6327 NATIONAL STD 2ND MATERIAL RESPONSE |
| Diameter of Recessed Portion of Shank | 0.399 INCHES MINIMUM AND 0.409 INCHES MAXIMUM IN |
| Nominal Thread Size | 0.438 INCHES NUT THREAD A IN |
| Nominal Thread Size | 0.438 INCHES NUT THREAD B IN |
| Length of Recessed Portion of Shank | 0.375 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM OVERALL |
| Thread Class | 3A NUT THREAD B A |
| Thread Quantity Per Inch | 14 NUT THREAD A |
| Thread Quantity Per Inch | 20 NUT THREAD B |
| Material | STEEL COMP 4340 OR STEEL COMP 8740 |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) NUT THREAD B |
| Thread Series Designator | UNJS NUT THREAD A |
| 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 |
|---|---|
| 120-233-3L PRIMARY | Saturn Fasteners Inc (USA) |
| 120-233-3L | United Precision Products Co., Inc. (USA) |
| Reference | Meaning |
|---|---|
| 120-233-3L | 5/2 Secondary reference U.S. Government activity |
NSN 5307-01-665-9957 is a Stud,recessed, manufactured by Saturn Fasteners Inc, classified under FSC 5307, Studs. Status: active.
NSN 5307-01-665-9957 has 2 manufacturer part numbers on file: 120-233-3L (Saturn Fasteners Inc), 120-233-3L (United Precision Products Co., Inc.).
Key specifications for 120-233-3L: Surface Treatment Document and Classification: SAE-AMS-QQ-P-416, TYPE II, CLASS 2 NATIONAL SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.625 INCHES NOMINAL NUT THREAD B IN; Thread Length: 0.938 INCHES NOMINAL NUT THREAD A IN; Style Designator: RECESSED. 16 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.