The Gasket, cataloged under National Stock Number 5330-01-377-4477, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Hunt Valve Company, Inc.. Government technical data includes 9 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-01-377-4477 |
| Primary Part Number | NN-4027-1 PIECE 19 3IN |
| Item Name | Gasket |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Hunt Valve Company, Inc. |
| Status | ACTIVE |
| Cross-Sectional Thickness | 0.062 INCHES NOMINAL IN |
| Inside Corner Radius | 0.750 INCHES NOMINAL IN |
| Material Document and Classification | MIL-G-22050, GRADE 1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | SOLID SINGLE OR COMPOSITION |
| Aperture Width | 2.625 INCHES NOMINAL IN |
| Aperture Length | 4.625 INCHES NOMINAL IN |
| Bolt Hole Quantity | 6 |
| Material | RUBBER ETHYLENE-PROPYLENE CLASS EPM 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 |
|---|---|
| NN-4027-1 PIECE 19 3IN | Hunt Valve Company, Inc. (USA) |
| Reference | Meaning |
|---|---|
| NN-4027-1 PIECE 19 3IN | 5/9 Secondary reference Pima Valve, Llc |
| 803-2177917-3-19 MOD | 3/2 Design control — primary reference U.S. Government activity |
NSN 5330-01-377-4477 is a Gasket, manufactured by Hunt Valve Company, Inc., classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-377-4477 has 1 manufacturer part number on file: NN-4027-1 PIECE 19 3IN (Hunt Valve Company, Inc.).
Key specifications for NN-4027-1 PIECE 19 3IN: Cross-Sectional Thickness: 0.062 INCHES NOMINAL IN; Inside Corner Radius: 0.750 INCHES NOMINAL IN; Material Document and Classification: MIL-G-22050, GRADE 1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Overall Length: 7.438 INCHES NOMINAL IN. 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.