The Gasket, cataloged under National Stock Number 5330-00-641-8179, 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 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-00-641-8179 |
| Primary Part Number | 203440 |
| Item Name | Gasket |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| FSC Application Data | ENGINE,JET ACFT |
| Cross-Sectional Thickness | 0.093 INCHES MINIMUM AND 0.098 INCHES MAXIMUM IN |
| Style Designator | CIRCULAR |
| Material Document and Classification | AMS 5570 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5576 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | HOLLOW |
| Outside Diameter | 8.488 INCHES MINIMUM AND 8.492 INCHES MAXIMUM IN |
| Aperture Diameter | 8.280 INCHES MINIMUM AND 8.308 INCHES MAXIMUM IN |
| Surface Treatment | SILVER OVERALL |
| Material | STEEL COMP 321 OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 203440 | Parker-Hannifin Corporation Dba Parker Hannifin Advanced Products Co Div Composite Sealing Systems Division (USA) |
| EON-008488-05-03-1-SPD | Parker-Hannifin Corporation Dba Parker Hannifin Advanced Products Co Div Composite Sealing Systems Division (USA) |
| 203440 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| Reference | Meaning |
|---|---|
| 8488-5-3 | 5/9 Secondary reference Parker-Hannifin Corporation Dba Parker Hannifin Advanced Products Co Div Composite Sealing Systems Division |
NSN 5330-00-641-8179 is a Gasket, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-641-8179 has 3 manufacturer part numbers on file: 203440 (Parker-Hannifin Corporation Dba Parker Hannifin Advanced Products Co Div Composite Sealing Systems Division), EON-008488-05-03-1-SPD (Parker-Hannifin Corporation Dba Parker Hannifin Advanced Products Co Div Composite Sealing Systems Division), 203440 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
2 possible matches (shared part number, not a government interchangeability claim): 5999-01-170-7669, 6750-01-427-2160. Verify interchangeability with system specifications before substitution.
Key specifications for 203440: FSC Application Data: ENGINE,JET ACFT; Cross-Sectional Thickness: 0.093 INCHES MINIMUM AND 0.098 INCHES MAXIMUM IN; Style Designator: CIRCULAR; Material Document and Classification: AMS 5570 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5576 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 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.