The Stud,plain, cataloged under National Stock Number 5307-00-423-8541, is classified within Federal Supply Class 5307 (Studs) of the Hardware and Abrasives group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. 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. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5307-00-423-8541 |
| Primary Part Number | 2A1640 |
| Item Name | Stud,plain |
| FSC / FSG | 5307 / 53 — Studs |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| Thread Length | 0.875 INCHES MINIMUM NUT THREAD IN |
| Thread Length | 0.375 INCHES MINIMUM STUD THREAD IN |
| Hardness Rating | 85.0 ROCKWELL B NOMINAL |
| Thread Direction | RIGHT-HAND STUD THREAD |
| Thread Direction | RIGHT-HAND NUT THREAD |
| Nominal Thread Size | 0.375 INCHES STUD THREAD IN |
| Nominal Thread Size | 0.375 INCHES NUT THREAD IN |
| Thread Class | 2A STUD THREAD A |
| Thread Class | 2A NUT THREAD A |
| Thread Quantity Per Inch | 24 NUT THREAD |
| Thread Quantity Per Inch | 24 STUD THREAD |
| Material | STEEL |
| Thread Series Designator | UNF STUD THREAD |
| Thread Series Designator | UNF NUT 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 |
|---|---|
| 2A1640 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
NSN 5307-00-423-8541 is a Stud,plain, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 5307, Studs. Status: active.
NSN 5307-00-423-8541 has 1 manufacturer part number on file: 2A1640 (Caterpillar Inc Div Caterpillar Defense).
1 possible match (shared part number, not a government interchangeability claim): 3120-01-180-8771. Verify interchangeability with system specifications before substitution.
Key specifications for 2A1640: Thread Length: 0.875 INCHES MINIMUM NUT THREAD IN; Thread Length: 0.375 INCHES MINIMUM STUD THREAD IN; Hardness Rating: 85.0 ROCKWELL B NOMINAL; Overall Length: 6.250 INCHES NOMINAL 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.