The Packing,preformed, cataloged under National Stock Number 5330-01-027-5302, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer. Government technical data includes 9 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 | 5330-01-027-5302 |
| Primary Part Number | 711955 |
| Item Name | Packing,preformed |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer |
| Status | ACTIVE |
| Cross-Sectional Height | 0.144 INCHES MINIMUM AND 0.149 INCHES MAXIMUM IN |
| Body Recess Diameter | 3.833 INCHES NOMINAL IN |
| Material Document and Classification | FLUOROTEC -33389 FSCM 07524 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | SPECIAL |
| Flanged Body Outside Diameter | 3.958 INCHES NOMINAL IN |
| Peripheral Diameter | 4.031 INCHES MINIMUM AND 4.051 INCHES MAXIMUM IN |
| Center Hole Diameter | 3.745 INCHES MINIMUM AND 3.755 INCHES MAXIMUM IN |
| Material | RUBBER SYNTHETIC OVERALL |
| Body Recess Depth | 0.031 INCHES NOMINAL IN |
| 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 |
|---|---|
| 711955 PRIMARY | Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer (USA) |
NSN 5330-01-027-5302 is a Packing,preformed, manufactured by Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-027-5302 has 1 manufacturer part number on file: 711955 (Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer).
1 possible match (shared part number, not a government interchangeability claim): 5961-01-333-9677. Verify interchangeability with system specifications before substitution.
Key specifications for 711955: Cross-Sectional Height: 0.144 INCHES MINIMUM AND 0.149 INCHES MAXIMUM IN; Body Recess Diameter: 3.833 INCHES NOMINAL IN; Material Document and Classification: FLUOROTEC -33389 FSCM 07524 MFR REF SINGLE MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: SPECIAL. 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.