The Stud,plain, cataloged under National Stock Number 5307-01-019-2105, is classified within Federal Supply Class 5307 (Studs) of the Hardware and Abrasives group. The manufacturer of record is Falls Filtration Technologies, Inc.. Government technical data includes 14 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5307-01-019-2105 |
| Primary Part Number | R9W1531-134 |
| Item Name | Stud,plain |
| FSC / FSG | 5307 / 53 — Studs |
| Manufacturer | Falls Filtration Technologies, Inc. |
| Status | ACTIVE |
| Surface Treatment Document and Classification | 171,FINISH 5.4.1 MIL STD SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 2.000 INCHES MINIMUM NUT THREAD IN |
| Thread Length | 1.000 INCHES MINIMUM STUD THREAD IN |
| Thread Direction | RIGHT-HAND STUD THREAD |
| Thread Direction | RIGHT-HAND NUT THREAD |
| Nominal Thread Size | 0.500 INCHES NUT THREAD IN |
| Nominal Thread Size | 0.500 INCHES STUD THREAD IN |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 2A NUT THREAD A |
| Thread Class | 5A STUD THREAD A |
| Thread Quantity Per Inch | 13 STUD THREAD |
| Thread Quantity Per Inch | 20 NUT THREAD |
| 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 |
|---|---|
| R9W1531-134 PRIMARY | Falls Filtration Technologies, Inc. (USA) |
NSN 5307-01-019-2105 is a Stud,plain, manufactured by Falls Filtration Technologies, Inc., classified under FSC 5307, Studs. Status: active.
NSN 5307-01-019-2105 has 1 manufacturer part number on file: R9W1531-134 (Falls Filtration Technologies, Inc.).
Key specifications for R9W1531-134: Surface Treatment Document and Classification: 171,FINISH 5.4.1 MIL STD SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 2.000 INCHES MINIMUM NUT THREAD IN; Thread Length: 1.000 INCHES MINIMUM STUD THREAD IN; Overall Length: 8.720 INCHES MINIMUM AND 8.750 INCHES MAXIMUM IN. 14 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.