The Insert,screw Thread, cataloged under National Stock Number 5325-01-398-6571, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Item Name | Insert,screw Thread |
| FSC / FSG | 5325 — Fastening Devices (FSG 53) |
| Manufacturers | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (CAGE 77445); Stanley Engineered Fastening Llc (CAGE 01556) |
| Parameter | Value |
|---|---|
| NSN | 5325-01-398-6571 |
| Primary Part Number | ST1076-03 |
| Item Name | Insert,screw Thread |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| 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 |
|---|---|
| ST1076-03 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| 3591-3TN190 | Stanley Engineered Fastening Llc (USA) |
| Reference | Meaning |
|---|---|
| 3591-3TN0190 | 5/9 Secondary reference Stanley Engineered Fastening Llc |
NSN 5325-01-398-6571 is a Insert,screw Thread, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-398-6571 has 2 manufacturer part numbers on file: ST1076-03 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 3591-3TN190 (Stanley Engineered Fastening Llc).
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.