The Insert,screw Thread, cataloged under National Stock Number 5325-00-529-9262, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-00-529-9262 |
| Primary Part Number | MS21209F4-15L |
| Item Name | Insert,screw Thread |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Length | 0.375 INCHES NOMINAL IN |
| Insert Size | 0.306 IN. MIN 0.326 IN. MAX FREE OD IN |
| Style Designator | COIL |
| Material Document and Classification | AMS 7245 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Size | 0.250 INCHES IN |
| Thread Class | 3B |
| Thread Quantity Per Inch | 28 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNF |
| 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 |
|---|---|
| MS21209F4-15L | Northrop Grumman Systems Corporation (USA) |
| MS21209F4-15L | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
| MS21209F4-15L | Inserts & Kits, Inc. (USA) |
| MS21209F4-15L | Boeing Distribution Services Defense Llc (USA) |
| Reference | Meaning |
|---|---|
| MS21209F4-15L | 3/2 Design control — primary reference U.S. Government activity |
| MS21209F4-15L | 5/2 Secondary reference U.S. Government activity |
| MS21209F4-15L | 4/1 Identification reference U.S. Government activity |
| NASM21209 | 3/1 Design control — primary reference U.S. Government activity |
NSN 5325-00-529-9262 is a Insert,screw Thread, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-00-529-9262 has 4 manufacturer part numbers on file: MS21209F4-15L (Northrop Grumman Systems Corporation), MS21209F4-15L (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp), MS21209F4-15L (Inserts & Kits, Inc.), MS21209F4-15L (Boeing Distribution Services Defense Llc).
Key specifications for MS21209F4-15L: Length: 0.375 INCHES NOMINAL IN; Insert Size: 0.306 IN. MIN 0.326 IN. MAX FREE OD IN; Style Designator: COIL; Material Document and Classification: AMS 7245 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 9 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.