The Seal,nonmetallic Strip, cataloged under National Stock Number 5330-01-720-0438, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 7 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5330-01-720-0438 |
| Primary Part Number | 801-6640891-PC 97 |
| Item Name | Seal,nonmetallic Strip |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Cross-Sectional Height | 0.438 INCHES NOMINAL IN |
| Cross-Sectional Width | 0.500 INCHES NOMINAL IN |
| Style Designator | STRIP |
| Material Document and Classification | MIL-R-6855/5, STY-A, CL 2, TYP A, GR 60 MIL SPEC SINGLE MATERIAL RESPONSE BACKING |
| Cross-Sectional Shape Style | U |
| Material | RUBBER SYNTHETIC BACKING |
| Construction | ONE-PIECE |
| 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 |
|---|---|
| 801-6640891-PC 97 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 2633-728-01-PC 97 | 5/2 Secondary reference U.S. Government activity |
| 6640891 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 5330-01-720-0438 is a Seal,nonmetallic Strip, manufactured by Naval Sea Systems Command, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-720-0438 has 1 manufacturer part number on file: 801-6640891-PC 97 (Naval Sea Systems Command).
1 possible match (shared part number, not a government interchangeability claim): 6680-01-733-1145. Verify interchangeability with system specifications before substitution.
Key specifications for 801-6640891-PC 97: Cross-Sectional Height: 0.438 INCHES NOMINAL IN; Cross-Sectional Width: 0.500 INCHES NOMINAL IN; Style Designator: STRIP; Material Document and Classification: MIL-R-6855/5, STY-A, CL 2, TYP A, GR 60 MIL SPEC SINGLE MATERIAL RESPONSE BACKING. 7 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.