The Gasket, cataloged under National Stock Number 5330-00-421-4842, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-00-421-4842 |
| Primary Part Number | 68A25C57 |
| Item Name | Gasket |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| Status | ACTIVE |
| Cross-Sectional Thickness | 0.020 INCHES NOMINAL IN |
| Inside Corner Radius | 0.250 INCHES NOMINAL IN |
| Style Designator | NON-CIRCULAR |
| Material Document and Classification | AMS 3274 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | CLOTH AND SYNTHETIC RUBBER, NONMETALLIC MATERIAL |
| Aperture Width | 2.160 INCHES NOMINAL IN |
| Aperture Length | 7.250 INCHES NOMINAL IN |
| Bolt Hole Quantity | 8 |
| Center to Center Distance Between Bolt Holes Along Length | 2.250 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN |
| Outside Edge to Bolt Hole Center Distance Along Length | 0.505 INCHES NOMINAL IN |
| Outside Corner Radius | 0.250 INCHES NOMINAL IN |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR AND PLASTIC POLYAMIDE NYLON OVERALL |
| Hole Diameter | 0.208 INCHES MINIMUM AND 0.228 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN |
| Outside Edge to Bolt Hole Center Distance Along Width | 0.217 INCHES NOMINAL 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 |
|---|---|
| 68A25C57 PRIMARY | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
NSN 5330-00-421-4842 is a Gasket, manufactured by Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-421-4842 has 1 manufacturer part number on file: 68A25C57 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier).
Key specifications for 68A25C57: Cross-Sectional Thickness: 0.020 INCHES NOMINAL IN; Inside Corner Radius: 0.250 INCHES NOMINAL IN; Style Designator: NON-CIRCULAR; Material Document and Classification: AMS 3274 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 14 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.