The Packing,preformed, cataloged under National Stock Number 5330-01-270-7839, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. Government technical data includes 9 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-01-270-7839 |
| Item Name | Packing,preformed |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Status | ACTIVE |
| Temp Rating | -70.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF |
| Hardness Rating | 80.0 SHORE DUROMETER A NOMINAL OVERALL |
| Criticality Code Justification | ZZZY |
| Cross-Sectional Shape Style | O-RING |
| Peripheral Diameter | 2.233 INCHES MINIMUM AND 2.279 INCHES MAXIMUM IN |
| Center Hole Diameter | 2.040 INCHES MINIMUM AND 2.060 INCHES MAXIMUM IN |
| Cross Section Outside Diameter | 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN |
| Material | RUBBER ISOBUTYLENE-ISOPRENE CLASS IIR OVERALL |
| Reference Number Differentiating Characteristics | MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER 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 |
|---|---|
| 820-5786961-2 | 3/1 Design control — primary reference Naval Sea Systems Command |
| 2-137E540-80 | 5/1 Secondary reference Parker-Hannifin Corp Div O-Ring Division |
| 2-137E540-80 | 5/9 Secondary reference U.S. Government activity |
| E0540 2-137 | 5/1 Secondary reference Parker-Hannifin Corp Div O-Ring Division |
NSN 5330-01-270-7839 is a Packing,preformed, classified under FSC 5330, Packing and Gasket Materials. Status: active.
Key specifications for 5330-01-270-7839: Temp Rating: -70.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF; Hardness Rating: 80.0 SHORE DUROMETER A NOMINAL OVERALL; Criticality Code Justification: ZZZY; Cross-Sectional Shape Style: O-RING. 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.