The Nut,sleeve, cataloged under National Stock Number 5310-00-596-5921, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 19 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-596-5921 |
| Primary Part Number | 266892 |
| Item Name | Nut,sleeve |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| Flange Width Across Flats | 0.493 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN |
| Nut Length | 0.138 INCHES MINIMUM AND 0.142 INCHES MAXIMUM IN |
| Flange Thickness | 0.130 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN |
| Thread Series | UNF |
| Hardness Rating | 30.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM |
| Hole Configuration Style | CONFIGURATION A |
| Material Document and Classification | AMS 5616 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.250 INCHES IN |
| Nut Diameter | 0.3615 INCHES MINIMUM AND 0.3635 INCHES MAXIMUM IN |
| Cross-Sectional Shape | HEXAGONAL FLANGE |
| Cross-Sectional Shape | ROUND NUT |
| Drilled Hole Diameter | 0.062 INCHES NOMINAL IN |
| Countersink Angle | 85.0 DEGREES MINIMUM AND 95.0 DEGREES MAXIMUM NUT |
| Nut Style | SLEEVE |
| Thread Class | 3B |
| Thread Quantity Per Inch | 28 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Hole Type and Quantity | 6 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 |
|---|---|
| 266892 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| QAP00408 | Defense Logistics Agency Dba Defense Supply Center Philadelphia (USA) |
| Reference | Meaning |
|---|---|
| 266892 | 5/9 Secondary reference Comet Mfg Co Inc |
| 266892 | 5/9 Secondary reference Royal Oak Gage, Inc |
NSN 5310-00-596-5921 is a Nut,sleeve, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-596-5921 has 2 manufacturer part numbers on file: 266892 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), QAP00408 (Defense Logistics Agency Dba Defense Supply Center Philadelphia).
Key specifications for 266892: Flange Width Across Flats: 0.493 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN; Nut Length: 0.138 INCHES MINIMUM AND 0.142 INCHES MAXIMUM IN; Flange Thickness: 0.130 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN; Thread Series: UNF. 19 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.