The Packing,preformed, cataloged under National Stock Number 5330-01-021-6291, 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8 specifications, cited from the U.S. Government catalog. 10 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5330-01-021-6291 |
| Item Name | Packing,preformed |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Status | ACTIVE |
| Cross-Sectional Height | 0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN |
| Hardness Rating | 75.0 SHORE DUROMETER A NOMINAL OVERALL |
| Criticality Code Justification | ZZZY |
| Elongation Percentage | 125 MAXIMUM |
| Peripheral Diameter | 2.645 INCHES NOMINAL IN |
| Center Hole Diameter | 2.207 INCHES MINIMUM AND 2.243 INCHES MAXIMUM IN |
| Material | RUBBER FLUOROCARBON CLASS FPM OVERALL |
| Reference Number Differentiating Characteristics | MATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS. |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | Y |
| Reference | Meaning |
|---|---|
| F20-8702PC15 | 5/1 Secondary reference Portland Valve Llc |
| 845-1889799 PC 15 | 5/1 Secondary reference U.S. Government activity |
| 845-2109897,PC.15 | 5/1 Secondary reference U.S. Government activity |
| 2640-698X3PC11 | 5/1 Secondary reference U.S. Government activity |
| 845-2007673 PIECE 15 | 3/1 Design control — primary reference U.S. Government activity |
| 845-2180966PC11 | 5/1 Secondary reference U.S. Government activity |
| 845-2180963PC20 | 5/1 Secondary reference U.S. Government activity |
| M83248/1-331 | 5/1 Secondary reference U.S. Government activity |
| M83248-1-331 | 5/1 Secondary reference U.S. Government activity |
| 2640-697 PIECE 20 | 5/1 Secondary reference U.S. Government activity |
NSN 5330-01-021-6291 is a Packing,preformed, classified under FSC 5330, Packing and Gasket Materials. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5331-01-123-3303. Verify interchangeability with system specifications before substitution.
Key specifications for 5330-01-021-6291: Cross-Sectional Height: 0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN; Hardness Rating: 75.0 SHORE DUROMETER A NOMINAL OVERALL; Criticality Code Justification: ZZZY; Elongation Percentage: 125 MAXIMUM. 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.