The Gasket, cataloged under National Stock Number 5330-00-171-7986, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Textron Aviation Inc. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 2 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-00-171-7986 |
| Primary Part Number | FCB25722 |
| Item Name | Gasket |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Textron Aviation Inc |
| Status | ACTIVE |
| Cross-Sectional Thickness | 0.062 INCHES NOMINAL IN |
| Hardness Rating | 75.0 SHORE DUROMETER A MINIMUM AND 85.0 SHORE DUROMETER A MAXIMUM OVERALL |
| Style Designator | CIRCULAR |
| Material Document and Classification | MIL-C-6183,CL 1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | SOLID SINGLE OR COMPOSITION |
| Outside Diameter | 5.719 INCHES NOMINAL IN |
| Aperture Diameter | 3.875 INCHES NOMINAL IN |
| Bolt Hole Quantity | 12 |
| Bolt Circle Diameter | 4.750 INCHES NOMINAL IN |
| Material | CORK OVERALL |
| Hole Diameter | 0.281 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 |
|---|---|
| FCB25722 | American Fuel Cell and Coated Fabrics Company, Llc (USA) |
| FCB25722 PRIMARY | Textron Aviation Inc (USA) |
| Reference | Meaning |
|---|---|
| 40-2054066-3 | 5/9 Secondary reference Lockheed Martin Corporation Div Rotary and Mission Systems |
| FCB25722 | 5/9 Secondary reference Royal Holdings, Inc. |
| FCB25722 | 5/9 Secondary reference Lanxess Corporation |
NSN 5330-00-171-7986 is a Gasket, manufactured by Textron Aviation Inc, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-171-7986 has 2 manufacturer part numbers on file: FCB25722 (American Fuel Cell and Coated Fabrics Company, Llc), FCB25722 (Textron Aviation Inc).
Key specifications for FCB25722: Cross-Sectional Thickness: 0.062 INCHES NOMINAL IN; Hardness Rating: 75.0 SHORE DUROMETER A MINIMUM AND 85.0 SHORE DUROMETER A MAXIMUM OVERALL; Style Designator: CIRCULAR; Material Document and Classification: MIL-C-6183,CL 1 MIL 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.