The Stud,plain, cataloged under National Stock Number 5307-01-331-5221, is classified within Federal Supply Class 5307 (Studs) of the Hardware and Abrasives group. The manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. The record lists 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Item Name | Stud,plain |
| FSC / FSG | 5307 — Studs (FSG 53) |
| Manufacturers | Thompson Aerospace, Llc Dba Thompson Aerospace Llc (CAGE 02991); Aircraft Components and Fasteners Inc (CAGE 55213); Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (CAGE 77445) |
| Parameter | Value |
|---|---|
| NSN | 5307-01-331-5221 |
| Primary Part Number | 4027527 |
| Item Name | Stud,plain |
| FSC / FSG | 5307 / 53 — Studs |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 4027527 | Thompson Aerospace, Llc Dba Thompson Aerospace Llc (USA) |
| 4027527 | Aircraft Components and Fasteners Inc (USA) |
| 4027527 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| Reference | Meaning |
|---|---|
| 4027527 | 5/2 Secondary reference U.S. Government activity |
NSN 5307-01-331-5221 is a Stud,plain, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 5307, Studs. Status: active.
NSN 5307-01-331-5221 has 3 manufacturer part numbers on file: 4027527 (Thompson Aerospace, Llc Dba Thompson Aerospace Llc), 4027527 (Aircraft Components and Fasteners Inc), 4027527 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
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.