The Gasket, cataloged under National Stock Number 5330-00-389-9339, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 5 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 5330-00-389-9339 |
| Primary Part Number | ST7M278-150 |
| Item Name | Gasket |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Cross-Sectional Thickness | 0.103 INCHES MINIMUM AND 0.113 INCHES MAXIMUM IN |
| Style Designator | CIRCULAR |
| Material Document and Classification | AMS-5589 ASSN STD SINGLE MATERIAL RESPONSE OR AMS-5596 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR METAL |
| Outside Diameter | 1.743 INCHES MINIMUM AND 1.749 INCHES MAXIMUM IN |
| Aperture Diameter | 1.458 INCHES MINIMUM AND 1.478 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Material | NICKEL ALLOY 718 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 |
|---|---|
| A0944 | Eaton Corporation Div Fed (USA) |
| ST7M278-150 | Associated Aircraft Manufacturing & Sales, Inc. Dba Associated Aircraft Manufacturing & Sales Inc (USA) |
| ST7M278-150 PRIMARY | The Boeing Company Div Defense (USA) |
| ST7M278-150 | Derco Aerospace, Inc. Dba Derco Aerospace, Inc. a Lockheed Martin Company (USA) |
| ST7M278-150 | Kitco Llc (USA) |
| Reference | Meaning |
|---|---|
| 4069472 | 5/9 Secondary reference Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| 5330PL0796689 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 5330PL1634930 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 5330-00-389-9339 is a Gasket, manufactured by The Boeing Company Div Defense, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-389-9339 has 5 manufacturer part numbers on file: A0944 (Eaton Corporation Div Fed), ST7M278-150 (Associated Aircraft Manufacturing & Sales, Inc. Dba Associated Aircraft Manufacturing & Sales Inc), ST7M278-150 (The Boeing Company Div Defense), ST7M278-150 (Derco Aerospace, Inc. Dba Derco Aerospace, Inc. a Lockheed Martin Company), ST7M278-150 (Kitco Llc).
2 possible matches (shared part number, not a government interchangeability claim): 5330-01-472-4538, 5330-01-558-5874. Verify interchangeability with system specifications before substitution.
Key specifications for ST7M278-150: Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Cross-Sectional Thickness: 0.103 INCHES MINIMUM AND 0.113 INCHES MAXIMUM IN; Style Designator: CIRCULAR; Material Document and Classification: AMS-5589 ASSN STD SINGLE MATERIAL RESPONSE OR AMS-5596 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.