The Seat,ball Socket, cataloged under National Stock Number 5340-00-348-5978, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 4 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-00-348-5978 |
| Primary Part Number | 4034066 |
| Item Name | Seat,ball Socket |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| FSC Application Data | AIRCRAFT TURBINE ENGINE |
| Special Test Features | MARK IDENT PER SPECIFICATION PWA 310 CLASS 39; THREADS PER SPECIFICATION PWA 355; BREAK SHARP EDGES .003-.015"; CORNERS MUST HAVE FILLETS .005-.020 R; DRAWING INTERPRETATIONS PER SPECIFICATION PWA 360 |
| Material | NICKEL ALLOY |
| Hole Diameter | 1.203 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | F |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| 4034066 | Rtx Corporation Div Pratt & Whitney (USA) |
| 4034066 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| Reference | Meaning |
|---|---|
| 5340PL0845435 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 4034066 | 5/9 Secondary reference Turbo Power & Marine System Inc Sub of United Technologies Corp |
| 4034066 | 5/9 Secondary reference Lewis Machine, Llc |
NSN 5340-00-348-5978 is a Seat,ball Socket, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-348-5978 has 2 manufacturer part numbers on file: 4034066 (Rtx Corporation Div Pratt & Whitney), 4034066 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
Key specifications for 4034066: FSC Application Data: AIRCRAFT TURBINE ENGINE; Special Test Features: MARK IDENT PER SPECIFICATION PWA 310 CLASS 39; THREADS PER SPECIFICATION PWA 355; BREAK SHARP EDGES .003-.015"; CORNERS MUST HAVE FILLETS .005-.020 R; DRAWING INTERPRETATIONS PER SPECIFICATION PWA 360; Special Features: MATERIAL: AMS 5663 NICKEL ALLOY; Part Name Assigned by Controlling Agency: SEAT-BALL SOCKET NUMBER 5 BEARING SUPPORT. 4 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.