The Packing Assembly, cataloged under National Stock Number 5330-00-290-0256, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. Government technical data includes 8 specifications, cited from the U.S. Government catalog. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-00-290-0256 |
| Item Name | Packing Assembly |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Status | ACTIVE |
| Intermediate Ring Quantity | 2 |
| Outside Diameter | 1.750 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | U INTERMEDIATE RING |
| Inside Diameter | 1.000 INCHES NOMINAL IN |
| Height | 0.750 INCHES NOMINAL IN |
| Material | COTTON AND RUBBER SYNTHETIC INTERMEDIATE RING |
| Material | COTTON OR RUBBER SYNTHETIC BOTTOM RING |
| Material | COTTON AND RUBBER SYNTHETIC TOP RING |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| NC1688PC23 | 5/9 Secondary reference Jenkins Bros |
| CV9S4824-040PC23 | 3/2 Design control — primary reference U.S. Government activity |
| MIL-P-2911 TY 2 | 4/1 Identification reference U.S. Government activity |
| 402070PC23 | 5/2 Secondary reference U.S. Government activity |
| 584208PC23 | 5/2 Secondary reference U.S. Government activity |
| NC12422PC23 | 5/9 Secondary reference Jenkins Bros |
| NC124227PC23 | 5/9 Secondary reference Jenkins Bros |
NSN 5330-00-290-0256 is a Packing Assembly, classified under FSC 5330, Packing and Gasket Materials. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5330-00-290-0262. Verify interchangeability with system specifications before substitution.
Key specifications for 5330-00-290-0256: Intermediate Ring Quantity: 2; Outside Diameter: 1.750 INCHES NOMINAL IN; Cross-Sectional Shape Style: U INTERMEDIATE RING; Inside Diameter: 1.000 INCHES NOMINAL IN. 8 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.