The Insert,screw Thread, cataloged under National Stock Number 5325-01-658-9699, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Mirion Technologies (ist) Corporation Dba Mirion Technologies Ist Corp. Government technical data includes 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5325-01-658-9699 |
| Primary Part Number | 42-00551 |
| Item Name | Insert,screw Thread |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Mirion Technologies (ist) Corporation Dba Mirion Technologies Ist Corp |
| Status | ACTIVE |
| Nominal Thread Size | 0.250 INCHES IN |
| Thread Quantity Per Inch | 20 |
| 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 |
|---|---|
| 42-00551 PRIMARY | Mirion Technologies (ist) Corporation Dba Mirion Technologies Ist Corp (USA) |
| Reference | Meaning |
|---|---|
| E-2843PC13 | D/9 Drawing number reference only Mirion Technologies (ist) Corporation Dba Mirion Technologies Ist Corp |
NSN 5325-01-658-9699 is a Insert,screw Thread, manufactured by Mirion Technologies (ist) Corporation Dba Mirion Technologies Ist Corp, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-658-9699 has 1 manufacturer part number on file: 42-00551 (Mirion Technologies (ist) Corporation Dba Mirion Technologies Ist Corp).
Key specifications for 42-00551: Nominal Thread Size: 0.250 INCHES IN; Part Name Assigned by Controlling Agency: THSD INSR; Thread Quantity Per Inch: 20; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC). 3 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.