The Nut,bearing Retaining,turbine, cataloged under National Stock Number 5310-00-773-3221, 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 1 specification, 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. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-773-3221 |
| Primary Part Number | 375351 |
| Item Name | Nut,bearing Retaining,turbine |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| General Characteristics Item Description | STEEL,AMS6322 OR AMS6323,ROCKWELL C SCALE 32 MIN,38 MAX HARDNESS,3.380 IN. MIN,3.400 IN. MAX OD,3.155 IN. MIN,3.165 IN. MAX ID,0.990 IN.MIN,1.010 IN. MAX O/A LG,40 SLOTS EQUALLY SPACED ON OD AT ONE END,0.135IN. MIN,0.145 IN. MAX W OF SLOTS,0.260 IN. MIN,0.280 IN. MAX LG OF SLOTS,OD OF SLOTTED END CHAMFERED,18.0 MIN,22.0 MAX DEG BY 0.135 IN. MIN,0.170IN. MAX LG CHAMFER,INTERNAL THDS 0.570 IN. MIN,0.590 IN. MAX FROM SLOTTEDEND,3.140 IN.-18 NS SERIES THD,3.1039 IN. MIN,3.1092 IN. MAX PITCH DIA,0.320 IN. MIN,0.370 IN. MAX THD LG IN |
| 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 |
|---|---|
| 375351 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
NSN 5310-00-773-3221 is a Nut,bearing Retaining,turbine, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-773-3221 has 1 manufacturer part number on file: 375351 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
1 possible match (shared part number, not a government interchangeability claim): 2835-00-978-1745. Verify interchangeability with system specifications before substitution.
Key specifications for 375351: General Characteristics Item Description: STEEL,AMS6322 OR AMS6323,ROCKWELL C SCALE 32 MIN,38 MAX HARDNESS,3.380 IN. MIN,3.400 IN. MAX OD,3.155 IN. MIN,3.165 IN. MAX ID,0.990 IN.MIN,1.010 IN. MAX O/A LG,40 SLOTS EQUALLY SPACED ON OD AT ONE END,0.135IN. MIN,0.145 IN. MAX W OF SLOTS,0.260 IN. MIN,0.280 IN. MAX LG OF SLOTS,OD OF SLOTTED END CHAMFERED,18.0 MIN,22.0 MAX DEG BY 0.135 IN. MIN,0.170IN. MAX LG CHAMFER,INTERNAL THDS 0.570 IN. MIN,0.590 IN. MAX FROM SLOTTEDEND,3.140 IN.-18 NS SERIES THD,3.1039 IN. MIN,3.1092 IN. MAX PITCH DIA,0.320 IN. MIN,0.370 IN. MAX THD LG IN. 1 specification is 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.