The Insert,screw Thread, cataloged under National Stock Number 5325-01-016-4937, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp. Government technical data includes 4 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through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-016-4937 |
| Primary Part Number | MS21209F1-10L |
| Item Name | Insert,screw Thread |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
| Status | ACTIVE |
| Length | 1.000 INCHES NOMINAL IN |
| Insert Size | 0.236 IN. MIN,0.256 IN. MAX DIA IN |
| Style Designator | COIL |
| Material | STEEL CORROSION RESISTING OVERALL |
| 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 |
|---|---|
| MS21209F1-10L | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
| Reference | Meaning |
|---|---|
| MS21209F1 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 10119198 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 5325PL0727588 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| MS21209F1-10L | 3/2 Design control — primary reference U.S. Government activity |
| MS21209F1-10L | 5/2 Secondary reference U.S. Government activity |
| NASM21209 | 3/1 Design control — primary reference U.S. Government activity |
| MS21209F1-10L | 5/9 Secondary reference U.S. Government activity |
NSN 5325-01-016-4937 is a Insert,screw Thread, manufactured by Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-016-4937 has 1 manufacturer part number on file: MS21209F1-10L (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp).
Key specifications for MS21209F1-10L: Length: 1.000 INCHES NOMINAL IN; Insert Size: 0.236 IN. MIN,0.256 IN. MAX DIA IN; Style Designator: COIL; Material: STEEL CORROSION RESISTING OVERALL. 4 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.