The Seal Ring,metal, cataloged under National Stock Number 5330-00-914-0758, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 6 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5330-00-914-0758 |
| Primary Part Number | 474540 |
| Item Name | Seal Ring,metal |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| FSC Application Data | COMPRESSOR DRIVE,TURBINE ROTOR,ACFT ENGINE |
| Material Document and Classification | AMS 5621 ASSN STD 1ST MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | PLAIN RECTANGULAR, STRAIGHT FACE |
| Outside Diameter | 1.896 INCHES NOMINAL IN |
| Joint Style | STEP JOINT |
| Radial Wall Thickness | 0.0750 INCHES MINIMUM AND 0.0790 INCHES MAXIMUM IN |
| Ring Style | EXPANDING CONCENTRIC |
| Material | STEEL OVERALL |
| Metallic Hardness Rating | 35.0 MINIMUM ROCKWELL C AND 40.0 MAXIMUM ROCKWELL C |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 474540 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| 474540 | Cuda II, Inc Div Aerospace Products Company (USA) |
| 474540 | Mc Kecknie Corp (USA) |
| 474540 | Kitco Llc (USA) |
| 474540 | Alamo Aircraft, Ltd. (USA) |
| 474540 | Metal Masters Inc (USA) |
| Reference | Meaning |
|---|---|
| 474540 | 5/2 Secondary reference U.S. Government activity |
NSN 5330-00-914-0758 is a Seal Ring,metal, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-914-0758 has 6 manufacturer part numbers on file: 474540 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 474540 (Cuda II, Inc Div Aerospace Products Company), 474540 (Mc Kecknie Corp), 474540 (Kitco Llc), 474540 (Alamo Aircraft, Ltd.) and 1 more.
1 possible match (shared part number, not a government interchangeability claim): 5330-01-451-3379. Verify interchangeability with system specifications before substitution.
Key specifications for 474540: FSC Application Data: COMPRESSOR DRIVE,TURBINE ROTOR,ACFT ENGINE; Overall Width: 0.0930 INCHES MINIMUM AND 0.0940 INCHES MAXIMUM IN; Material Document and Classification: AMS 5621 ASSN STD 1ST MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: PLAIN RECTANGULAR, STRAIGHT FACE. 9 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.