The Seal,nonmetallic Special Shaped, cataloged under National Stock Number 5330-01-228-9553, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Burke Industries Purosil Div. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 5330-01-228-9553 |
| Primary Part Number | GS179M9 |
| Item Name | Seal,nonmetallic Special Shaped |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Burke Industries Purosil Div |
| Status | ACTIVE |
| Temp Rating | -54.0 CELSIUS AND -54.0 CELSIUS AND 177.0 CELSIUS177.0 CELSIUS DEGC |
| Cross-Sectional Thickness | 0.060 INCHES NOMINAL0.060 INCHES NOMINAL IN |
| Cross-Sectional Height | 0.370 INCHES NOMINAL0.370 INCHES NOMINAL IN |
| Cross-Sectional Width | 1.000 INCHES NOMINAL1.000 INCHES NOMINAL IN |
| Material Document and Classification | ZZ-R-765 CLASS 11B GRADE 50 FED SPEC SINGLE MATERIAL RESPONSE CORE |
| Cross-Sectional Shape Style | HOLLOW BULBHOLLOW BULB |
| Cross Section Inside Diameter | 0.270 INCHES NOMINAL0.270 INCHES NOMINAL IN |
| Material | PLASTIC POLYETHYLENE TEREPHTHALATE (PET)(POLYESTER) JACKET |
| Material | RUBBER SILICONE CLASS Q CORE |
| Construction | ONE-PIECEONE-PIECE |
| 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 |
|---|---|
| GS179M9 | Kirkhill, Inc. Dba Kirkhill Inc (USA) |
| GS179M9 PRIMARY | Burke Industries Purosil Div (USA) |
| GS179M9 | Northrop Grumman Systems Corporation (USA) |
| GS179M9 | Kirkhill Inc Div Kirkhill Inc, Haskon Division (USA) |
| Reference | Meaning |
|---|---|
| A51B10004-26 | C/1 Advisory reference — outside the item-of-supply concept Northrop Grumman Systems Corporation |
| 7093 | 5/9 Secondary reference Parker-Hannifin Corporation Div Integrated Sealing Systems Division |
| A51B10004-26 | C/1 Advisory reference — outside the item-of-supply concept Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Northrop Grumman Aeronautics Systems |
| 7093 | 5/9 Secondary reference Kirkhill Inc Div Kirkhill Inc, Haskon Division |
| GS179M9 | 5/9 Secondary reference Kirkhill Ta Haskon Div |
NSN 5330-01-228-9553 is a Seal,nonmetallic Special Shaped, manufactured by Burke Industries Purosil Div, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-228-9553 has 4 manufacturer part numbers on file: GS179M9 (Kirkhill, Inc. Dba Kirkhill Inc), GS179M9 (Burke Industries Purosil Div), GS179M9 (Northrop Grumman Systems Corporation), GS179M9 (Kirkhill Inc Div Kirkhill Inc, Haskon Division).
2 possible matches (shared part number, not a government interchangeability claim): 4240-01-496-1955, 8145-01-562-4769. Verify interchangeability with system specifications before substitution.
Key specifications for GS179M9: Temp Rating: -54.0 CELSIUS AND -54.0 CELSIUS AND 177.0 CELSIUS177.0 CELSIUS DEGC; Cross-Sectional Thickness: 0.060 INCHES NOMINAL0.060 INCHES NOMINAL IN; Cross-Sectional Height: 0.370 INCHES NOMINAL0.370 INCHES NOMINAL IN; Cross-Sectional Width: 1.000 INCHES NOMINAL1.000 INCHES NOMINAL IN. 10 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.