The Nut,sleeve, cataloged under National Stock Number 5310-00-216-7684, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions. 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through both NSN and commercial part number lookups. 25 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-216-7684 |
| Primary Part Number | 166291-52 |
| Item Name | Nut,sleeve |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions |
| Status | ACTIVE |
| Nut Length | 1.890 INCHES MINIMUM AND 1.906 INCHES MAXIMUM IN |
| Thread Series | UNF |
| Thread Length | 1.125 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.625 INCHES IN |
| Nut Diameter | 1.218 INCHES MINIMUM AND 1.234 INCHES MAXIMUM IN |
| Cross-Sectional Shape | ROUND W/WRENCH FLATS NUT |
| Nut Style | SLEEVE |
| Thread Class | 4B |
| Thread Quantity Per Inch | 18 |
| Material | STEEL 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 |
|---|---|
| 166291-52 PRIMARY | Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions (USA) |
| Reference | Meaning |
|---|---|
| 185890PC52 | 5/9 Secondary reference Ingersoll Rand Co |
| 187955PC52 | 5/9 Secondary reference Ingersoll Rand Co |
| 166291-52 | 5/9 Secondary reference U.S. Government activity |
| 185834PC52 | 5/9 Secondary reference Ingersoll Rand Co |
| 188989PC52 | 5/9 Secondary reference Ingersoll Rand Co |
| 184462PC52 | 5/9 Secondary reference Ingersoll Rand Co |
| 185760PC52 | 5/9 Secondary reference Ingersoll Rand Co |
| 189128PC52 | 5/9 Secondary reference Ingersoll Rand Co |
| 186295PC52 | 5/9 Secondary reference Ingersoll Rand Co |
| 185767PC52 | 5/9 Secondary reference Ingersoll Rand Co |
| 166291-52 | 5/9 Secondary reference Ingersoll Rand Co |
| 166291-52 | 3/9 Design control — primary reference Siemens Energy, Inc. Dba Dresser-Rand |
| 188991PC52 | 5/9 Secondary reference Ingersoll Rand Co |
| 189020PC52 | 5/9 Secondary reference Ingersoll Rand Co |
| 185827PC52 | 5/9 Secondary reference Ingersoll Rand Co |
| 189135PC52 | 5/9 Secondary reference Ingersoll Rand Co |
| 185755PC52 | 5/9 Secondary reference Ingersoll Rand Co |
| 186290PC52 | 5/9 Secondary reference Ingersoll Rand Co |
| 166291B52 | 5/9 Secondary reference Ingersoll Rand Co |
| 184455PC52 | 5/9 Secondary reference Ingersoll Rand Co |
NSN 5310-00-216-7684 is a Nut,sleeve, manufactured by Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-216-7684 has 1 manufacturer part number on file: 166291-52 (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions).
Key specifications for 166291-52: Nut Length: 1.890 INCHES MINIMUM AND 1.906 INCHES MAXIMUM IN; Thread Series: UNF; Thread Length: 1.125 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN; Thread Direction: RIGHT-HAND. 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.