The Packing,preformed, cataloged under National Stock Number 5330-00-579-7929, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Ashcroft Inc Dba Heise. Government technical data includes 6 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-00-579-7929 |
| Primary Part Number | 42848 |
| Item Name | Packing,preformed |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Ashcroft Inc Dba Heise |
| Status | ACTIVE |
| Cross-Sectional Height | 0.344 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | SQUARE/RECTANGULAR |
| Peripheral Diameter | 1.062 INCHES NOMINAL IN |
| Center Hole Diameter | 0.438 INCHES NOMINAL IN |
| Material | ASBESTOS AND GRAPHITE OVERALL |
| Joint Type | SCARF-PERIPHERAL OVERALL |
| 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 |
|---|---|
| 42848 PRIMARY | Ashcroft Inc Dba Heise (USA) |
| Reference | Meaning |
|---|---|
| 42848 | 5/9 Secondary reference Dresser, Inc. Dba Dresser Equipment Group Div Industrial Valve Operations, Dresse |
NSN 5330-00-579-7929 is a Packing,preformed, manufactured by Ashcroft Inc Dba Heise, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-579-7929 has 1 manufacturer part number on file: 42848 (Ashcroft Inc Dba Heise).
4 possible matches (shared part number, not a government interchangeability claim): 1615-00-838-6560, 6610-00-886-4863, 5330-00-940-3157. Verify interchangeability with system specifications before substitution.
Key specifications for 42848: Cross-Sectional Height: 0.344 INCHES NOMINAL IN; Cross-Sectional Shape Style: SQUARE/RECTANGULAR; Peripheral Diameter: 1.062 INCHES NOMINAL IN; Center Hole Diameter: 0.438 INCHES NOMINAL IN. 6 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.