The Packing,preformed, cataloged under National Stock Number 5330-00-021-3851, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Sears, Roebuck and Co. Dba Sears Div Sears Commercial. Government technical data includes 4 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 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 | 5330-00-021-3851 |
| Primary Part Number | N20-34 |
| Item Name | Packing,preformed |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Sears, Roebuck and Co. Dba Sears Div Sears Commercial |
| Status | ACTIVE |
| Cross-Sectional Height | 0.375 INCHES NOMINAL IN |
| Color | BLACK |
| Center Hole Diameter | 0.875 INCHES NOMINAL IN |
| Material | RUBBER 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 |
|---|---|
| N20-34 PRIMARY | Sears, Roebuck and Co. Dba Sears Div Sears Commercial (USA) |
NSN 5330-00-021-3851 is a Packing,preformed, manufactured by Sears, Roebuck and Co. Dba Sears Div Sears Commercial, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-021-3851 has 1 manufacturer part number on file: N20-34 (Sears, Roebuck and Co. Dba Sears Div Sears Commercial).
1 possible match (shared part number, not a government interchangeability claim): 5330-00-461-5701. Verify interchangeability with system specifications before substitution.
Key specifications for N20-34: Cross-Sectional Height: 0.375 INCHES NOMINAL IN; Color: BLACK; Center Hole Diameter: 0.875 INCHES NOMINAL IN; Material: RUBBER OVERALL. 4 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.