The Gasket, cataloged under National Stock Number 5330-01-255-9480, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Eaton Corporation Div Fed. Government technical data includes 5 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 5330-01-255-9480 |
| Primary Part Number | SM-C-657738-4 |
| Item Name | Gasket |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Eaton Corporation Div Fed |
| Status | ACTIVE |
| Cross-Sectional Thickness | 0.014 INCHES MINIMUM AND 0.016 INCHES MAXIMUM IN |
| Style Designator | CIRCULAR |
| Outside Diameter | 1.778 INCHES MINIMUM AND 1.787 INCHES MAXIMUM IN |
| Aperture Diameter | 1.613 INCHES NOMINAL IN |
| Material | NICKEL ALLOY X-750 OVERALL |
| 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 |
|---|---|
| 363009-4 | Hypertac Sa (FRA) |
| SM-C-657738-4 PRIMARY | Eaton Corporation Div Fed (USA) |
| SM-C-657738-4 | Parker-Hannifin Corporation Dba Parker Hannifin Advanced Products Co Div Composite Sealing Systems Division (USA) |
| Reference | Meaning |
|---|---|
| 9950 | 5/9 Secondary reference Eaton Corporation Div Fed |
| 66611 | 5/9 Secondary reference Parker-Hannifin Corporation Dba Parker Hannifin Advanced Products Co Div Composite Sealing Systems Division |
| SM-C-657738-4 | 7/2 Vendor item drawing reference U.S. Government activity |
NSN 5330-01-255-9480 is a Gasket, manufactured by Eaton Corporation Div Fed, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-255-9480 has 3 manufacturer part numbers on file: 363009-4 (Hypertac Sa), SM-C-657738-4 (Eaton Corporation Div Fed), SM-C-657738-4 (Parker-Hannifin Corporation Dba Parker Hannifin Advanced Products Co Div Composite Sealing Systems Division).
2 possible matches (shared part number, not a government interchangeability claim): 5950-01-330-5785, 5999-01-450-9828. Verify interchangeability with system specifications before substitution.
Key specifications for SM-C-657738-4: Cross-Sectional Thickness: 0.014 INCHES MINIMUM AND 0.016 INCHES MAXIMUM IN; Style Designator: CIRCULAR; Outside Diameter: 1.778 INCHES MINIMUM AND 1.787 INCHES MAXIMUM IN; Aperture Diameter: 1.613 INCHES NOMINAL IN. 5 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.