The Packing Assembly, cataloged under National Stock Number 5330-01-026-0571, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is John Crane, Inc. Government technical data includes 8 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5330-01-026-0571 |
| Primary Part Number | 387I-387J |
| Item Name | Packing Assembly |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | John Crane, Inc |
| Status | ACTIVE |
| Intermediate Ring Quantity | 4 |
| Outside Diameter | 3.000 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | CUP BOTTOM RING |
| Cross-Sectional Shape Style | ANGLE TOP RING |
| Cross-Sectional Shape Style | CUP INTERMEDIATE RING |
| Inside Diameter | 2.375 INCHES NOMINAL IN |
| Height | 1.937 INCHES NOMINAL IN |
| Material | ASBESTOS INTERMEDIATE RING |
| 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 |
|---|---|
| 387I-387J PRIMARY | John Crane, Inc (USA) |
| Reference | Meaning |
|---|---|
| 187I-187J | 5/9 Secondary reference John Crane, Inc |
| X87601PC103-37 | 5/9 Secondary reference U.S. Government activity |
NSN 5330-01-026-0571 is a Packing Assembly, manufactured by John Crane, Inc, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-026-0571 has 1 manufacturer part number on file: 387I-387J (John Crane, Inc).
Key specifications for 387I-387J: Intermediate Ring Quantity: 4; Outside Diameter: 3.000 INCHES NOMINAL IN; Cross-Sectional Shape Style: CUP BOTTOM RING; Cross-Sectional Shape Style: ANGLE TOP RING. 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.