The Seal,nonmetallic Round Section, cataloged under National Stock Number 5330-01-277-8084, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Lockheed Martin Sippican, Inc. Div Communication Division. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-01-277-8084 |
| Primary Part Number | C135801-1 |
| Item Name | Seal,nonmetallic Round Section |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Lockheed Martin Sippican, Inc. Div Communication Division |
| Status | ACTIVE |
| Style Designator | CIRCULAR |
| Material Document and Classification | MIL-P-5516 CL B MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | CIRCULAR |
| Aperture Diameter | 49.750 INCHES NOMINAL IN |
| Cross Section Outside Diameter | 0.275 INCHES NOMINAL IN |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL |
| 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 |
|---|---|
| C135801-1 PRIMARY | Lockheed Martin Sippican, Inc. Div Communication Division (USA) |
NSN 5330-01-277-8084 is a Seal,nonmetallic Round Section, manufactured by Lockheed Martin Sippican, Inc. Div Communication Division, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-277-8084 has 1 manufacturer part number on file: C135801-1 (Lockheed Martin Sippican, Inc. Div Communication Division).
Key specifications for C135801-1: Style Designator: CIRCULAR; Material Document and Classification: MIL-P-5516 CL B MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: CIRCULAR; Aperture Diameter: 49.750 INCHES NOMINAL IN. 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.