The Insert,screw Thread, cataloged under National Stock Number 5325-01-412-3550, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Penn Engineering & Manufacturing Corp. Government technical data includes 11 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-412-3550 |
| Primary Part Number | STKC-832-16 |
| Item Name | Insert,screw Thread |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Penn Engineering & Manufacturing Corp |
| Status | ACTIVE |
| Length | 0.4950 INCHES MINIMUM AND 0.5050 INCHES MAXIMUM IN |
| Overall Diameter | 0.2500 INCHES NOMINAL IN |
| Thread Length | 0.4950 INCHES MINIMUM AND 0.5050 INCHES MAXIMUM IN |
| Insert Size | 8-32 |
| Style Designator | PLAIN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.1640 INCHES IN |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| 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 |
|---|---|
| STKC-832-16 PRIMARY | Penn Engineering & Manufacturing Corp (USA) |
| Reference | Meaning |
|---|---|
| STKC-832-16 | 3/9 Design control — primary reference Standard Insert Co Inc |
NSN 5325-01-412-3550 is a Insert,screw Thread, manufactured by Penn Engineering & Manufacturing Corp, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-412-3550 has 1 manufacturer part number on file: STKC-832-16 (Penn Engineering & Manufacturing Corp).
Key specifications for STKC-832-16: Length: 0.4950 INCHES MINIMUM AND 0.5050 INCHES MAXIMUM IN; Overall Diameter: 0.2500 INCHES NOMINAL IN; Thread Length: 0.4950 INCHES MINIMUM AND 0.5050 INCHES MAXIMUM IN; Insert Size: 8-32. 11 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.