The Nut,sleeve, cataloged under National Stock Number 5310-01-238-6401, 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 13 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-238-6401 |
| Primary Part Number | 776608 |
| Item Name | Nut,sleeve |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| Nut Length | 0.820 INCHES NOMINAL IN |
| Thread Series | UNF |
| Thread Length | 0.600 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN |
| Hardness Rating | 25.0 ROCKWELL C MINIMUM AND 33.0 ROCKWELL C MAXIMUM |
| Material Document and Classification | AMS5613 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.375 INCHES IN |
| Nut Diameter | 1.211 INCHES NOMINAL IN |
| Cross-Sectional Shape | ROUND NUT |
| Nut Style | SLEEVE |
| Thread Class | 2B |
| Thread Quantity Per Inch | 24 |
| 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 |
NSN 5310-01-238-6401 is a Nut,sleeve, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-238-6401 has 2 manufacturer part numbers on file: 776608 (Rtx Corporation Div Pratt & Whitney), 776608 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
Key specifications for 776608: Nut Length: 0.820 INCHES NOMINAL IN; Thread Series: UNF; Thread Length: 0.600 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN; Hardness Rating: 25.0 ROCKWELL C MINIMUM AND 33.0 ROCKWELL C MAXIMUM. 13 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.