The Insert,screw Thread, cataloged under National Stock Number 5325-00-340-3631, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Leonardo Spa Helicopters Division - Production Site. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 10 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-00-340-3631 |
| Primary Part Number | MS21209F1-15L |
| Item Name | Insert,screw Thread |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Leonardo Spa Helicopters Division - Production Site |
| Status | ACTIVE |
| Length | 0.285 INCHES NOMINAL IN |
| Insert Size | 0.236 IN. MIN 0.256 IN. MAX FREE OD IN |
| Style Designator | COIL |
| Material Document and Classification | FED STD 66 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Size | 0.190 INCHES IN |
| Thread Class | 3B |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP 304 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 |
|---|---|
| MS21209F1-15L | Leonardo Spa Helicopters Division - Production Site (ITA) |
| MS21209F1-15L | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| 988005-214 | 5/9 Secondary reference U.S. Government activity |
| 3591-3CNW285 | 5/9 Secondary reference Stanley Engineered Fastening Llc |
| 3591-3CNW0285 | 5/9 Secondary reference Stanley Engineered Fastening Llc |
| 4144000-301 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| MS21209F1-15L | 5/2 Secondary reference U.S. Government activity |
| 5325PL2174671 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 457-5680 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| MS21209F1-15L | 5/2 Secondary reference U.S. Government activity |
| MS21209F1-15L | 3/2 Design control — primary reference U.S. Government activity |
| 947555-133 | C/1 Advisory reference — outside the item-of-supply concept Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp |
NSN 5325-00-340-3631 is a Insert,screw Thread, manufactured by Leonardo Spa Helicopters Division - Production Site, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-00-340-3631 has 2 manufacturer part numbers on file: MS21209F1-15L (Leonardo Spa Helicopters Division - Production Site), MS21209F1-15L (Northrop Grumman Systems Corporation).
Key specifications for MS21209F1-15L: Length: 0.285 INCHES NOMINAL IN; Insert Size: 0.236 IN. MIN 0.256 IN. MAX FREE OD IN; Style Designator: COIL; Material Document and Classification: FED STD 66 FED 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.