The Gasket, cataloged under National Stock Number 5330-00-285-3663, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Babcock & Wilcox Co. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 23 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 21 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-00-285-3663 |
| Primary Part Number | MX251275-1PC15 |
| Item Name | Gasket |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Babcock & Wilcox Co |
| Status | ACTIVE |
| Cross-Sectional Thickness | 0.062 INCHES NOMINAL IN |
| Side Radius From Gasket Center | 2.438 INCHES NOMINAL IN |
| Style Designator | NON-CIRCULAR |
| Material Document and Classification | HH-G-101 TY 1 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | METAL WITH SOFT FILLER |
| Aperture Diameter | 3.938 INCHES NOMINAL IN |
| Bolt Hole Quantity | 3 |
| Bolt Circle Diameter | 4.875 INCHES NOMINAL IN |
| Outside Corner Radius | 0.500 INCHES NOMINAL IN |
| Material | ASBESTOS AND COPPER OVERALL |
| Hole Diameter | 0.562 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN |
| 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 |
|---|---|
| MX251275-1PC15 PRIMARY | Babcock & Wilcox Co (USA) |
| MX260120-2PC15 PRIMARY | Babcock & Wilcox Co (USA) |
| MX229720-15 PRIMARY | Babcock & Wilcox Co (USA) |
| MX252453-1PC15 PRIMARY | Babcock & Wilcox Co (USA) |
| MX230664PC15 PRIMARY | Babcock & Wilcox Co (USA) |
| MX261279-3PC15 PRIMARY | Babcock & Wilcox Co (USA) |
| MX242996-5PC15 PRIMARY | Babcock & Wilcox Co (USA) |
| MX229482PC15 PRIMARY | Babcock & Wilcox Co (USA) |
| MX252774PC15 PRIMARY | Babcock & Wilcox Co (USA) |
| MX260115-3PC15 PRIMARY | Babcock & Wilcox Co (USA) |
| MX243188PC15 PRIMARY | Babcock & Wilcox Co (USA) |
| MX253081-1PC15 PRIMARY | Babcock & Wilcox Co (USA) |
| MX230910PC15 PRIMARY | Babcock & Wilcox Co (USA) |
| MX230586PC15 PRIMARY | Babcock & Wilcox Co (USA) |
| MX251020PC15 PRIMARY | Babcock & Wilcox Co (USA) |
| MX253750PC15 PRIMARY | Babcock & Wilcox Co (USA) |
| MX252450PC15 PRIMARY | Babcock & Wilcox Co (USA) |
| MX243766PC15 PRIMARY | Babcock & Wilcox Co (USA) |
| MX251279PC15 PRIMARY | Babcock & Wilcox Co (USA) |
| MX253751PC15 PRIMARY | Babcock & Wilcox Co (USA) |
| Reference | Meaning |
|---|---|
| CL49S55-0114PC15 | 3/2 Design control — primary reference U.S. Government activity |
| DD453S55-0404PC15 | 3/2 Design control — primary reference U.S. Government activity |
| DD421S55-0146PC15 | 3/2 Design control — primary reference U.S. Government activity |
| BB55S55-056PC15 | 3/2 Design control — primary reference U.S. Government activity |
| DD423S55-01PC15 | 3/2 Design control — primary reference U.S. Government activity |
| CL49S51-0163PC15 | 3/2 Design control — primary reference U.S. Government activity |
| CV33S5504-335227ALT2PC15 | 3/2 Design control — primary reference U.S. Government activity |
| CL119S5504-391082ALT3PC15 | 3/2 Design control — primary reference U.S. Government activity |
| DD381S55-0162PC15 | 3/2 Design control — primary reference U.S. Government activity |
| CV9S5504-02PC15 | 3/2 Design control — primary reference U.S. Government activity |
| DD421S55-0353PC15 | 3/2 Design control — primary reference U.S. Government activity |
| BB57S55-01PC15 | 3/2 Design control — primary reference U.S. Government activity |
| CL55S55-1ALT5PC15 | 3/2 Design control — primary reference U.S. Government activity |
| DD692S5504-737925ALT1PC15 | 3/2 Design control — primary reference U.S. Government activity |
| DD453S55-0502PC15 | 3/2 Design control — primary reference U.S. Government activity |
| DD445S5504-3PC15 | 3/2 Design control — primary reference U.S. Government activity |
| CV33S5504-335222ALT3PC15 | 3/2 Design control — primary reference U.S. Government activity |
| LST1154S5504-691981PC15 | 3/2 Design control — primary reference U.S. Government activity |
| CL51S55-0126PC15 | 3/2 Design control — primary reference U.S. Government activity |
| DD397S55-0275PC15 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5330-00-285-3663 is a Gasket, manufactured by Babcock & Wilcox Co, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-285-3663 has 23 manufacturer part numbers on file: MX251275-1PC15 (Babcock & Wilcox Co), MX260120-2PC15 (Babcock & Wilcox Co), MX229720-15 (Babcock & Wilcox Co), MX252453-1PC15 (Babcock & Wilcox Co), MX230664PC15 (Babcock & Wilcox Co) and 18 more.
Key specifications for MX251275-1PC15: Cross-Sectional Thickness: 0.062 INCHES NOMINAL IN; Side Radius From Gasket Center: 2.438 INCHES NOMINAL IN; Style Designator: NON-CIRCULAR; Material Document and Classification: HH-G-101 TY 1 FED SPEC SINGLE MATERIAL RESPONSE OVERALL. 11 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.