The Stud,locked in, cataloged under National Stock Number 5307-00-207-5852, is classified within Federal Supply Class 5307 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Howmet Global Fastening Systems Inc Div Rosan Products. Government technical data includes 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5307-00-207-5852 |
| Primary Part Number | SF121-12SA20A |
| Item Name | Stud,locked in |
| FSC / FSG | 5307 / 53 — No Item Name Available |
| Manufacturer | Howmet Global Fastening Systems Inc Div Rosan Products |
| Status | ACTIVE |
| Material Document and Classification | MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE |
| Thread Quantity Per Inch | 24 NUT THREAD |
| Locking Feature | ANY ACCEPTABLE |
| Thread Series Designator | UNS STUD THREAD |
| Nominal Thread Size | 0.375 INCHES NUT THREAD IN |
| Thread Quantity Per Inch | 14 STUD THREAD |
| Thread Series Designator | UNF NUT THREAD |
| Nominal Thread Size | 0.438 INCHES STUD THREAD IN |
| Distance From Serrated Portion to Stud End | 0.750 INCHES NOMINAL IN |
| Style Designator | LOCKED IN |
| Thread Length | 0.625 INCHES NOMINAL NUT THREAD IN |
| Thread Length | 0.518 INCHES NOMINAL STUD THREAD IN |
| Distance From Serrated Portion to Nut End | 1.250 INCHES NOMINAL IN |
| Distance From Serrated Portion to End of Stud Thread | 0.231 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND STUD THREAD |
| Thread Pitch Diameters | +0.3926 TO 0.3946 INCHES STUD THREAD IN |
| Surface Treatment | CADMIUM OVERALL |
| Material | STEEL COMP 4130 |
| Thread Direction | RIGHT-HAND NUT THREAD |
| Thread Class | 3A NUT THREAD A |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 133728 | Eaton Aerospace, Llc Dba Jackson South (USA) |
| BACS21S12-20A | The Boeing Company Div Defense (USA) |
| SF121-12SA20A PRIMARY | Howmet Global Fastening Systems Inc Div Rosan Products (USA) |
NSN 5307-00-207-5852 is a Stud,locked in, manufactured by Howmet Global Fastening Systems Inc Div Rosan Products, classified under FSC 5307 (No Item Name Available). Status: active.
NSN 5307-00-207-5852 has 3 cross-referenced part numbers: 133728 (Eaton Aerospace, Llc Dba Jackson South), BACS21S12-20A (The Boeing Company Div Defense), SF121-12SA20A (Howmet Global Fastening Systems Inc Div Rosan Products).
There are 8 known substitutes for 5307-00-207-5852: 5305-00-013-3728, 4720-01-052-9347, 4720-01-224-0230 and 5 more. Verify interchangeability with system specifications before substitution.
Key specifications for SF121-12SA20A: Material Document and Classification: MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE; Thread Quantity Per Inch: 24 NUT THREAD; Locking Feature: ANY ACCEPTABLE; Thread Series Designator: UNS STUD THREAD. 21 total characteristics are documented in the Federal Logistics Information System.