The Nut,sleeve, cataloged under National Stock Number 5310-01-299-2911, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp. Government technical data includes 21 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-299-2911 |
| Primary Part Number | 70101-08004-104 |
| Item Name | Nut,sleeve |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
| Status | ACTIVE |
| Flange Width Across Flats | 1.680 INCHES NOMINAL IN |
| Nut Length | 0.965 INCHES NOMINAL IN |
| Flange Thickness | 0.375 INCHES NOMINAL IN |
| Thread Series | UNJS |
| Hardness Rating | 34.0 ROCKWELL C MAXIMUM AND 38.0 ROCKWELL C MAXIMUM |
| Hole Configuration Style | CONFIGURATION B |
| Material Document and Classification | MIL-S-5000,COND C MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nut Counterbore Depth | 0.965 INCHES NOMINAL SECOND END IN |
| Thread Direction | LEFT-HAND |
| Nominal Thread Size | 1.250 INCHES IN |
| Nut Diameter | 1.580 INCHES NOMINAL IN |
| Counterbore Diameter | 1.375 INCHES NOMINAL SECOND END IN |
| Cross-Sectional Shape | ROUND SECOND END |
| Cross-Sectional Shape | HEXAGONAL FIRST END |
| Drilled Hole Diameter | 0.060 INCHES MINIMUM AND 0.080 INCHES MAXIMUM IN |
| Surface Treatment | PAINT OVERALL EXCEPT THREADS |
| Nut Style | SLEEVE |
| Thread Class | 3B |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP E4340 OVERALL |
| Hole Type and Quantity | 3 DRILLED |
| 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 |
|---|---|
| 70101-08004-104 PRIMARY | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
NSN 5310-01-299-2911 is a Nut,sleeve, manufactured by Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-299-2911 has 1 manufacturer part number on file: 70101-08004-104 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp).
Key specifications for 70101-08004-104: Flange Width Across Flats: 1.680 INCHES NOMINAL IN; Nut Length: 0.965 INCHES NOMINAL IN; Flange Thickness: 0.375 INCHES NOMINAL IN; Thread Series: UNJS. 21 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.