The Gasket, cataloged under National Stock Number 5330-01-475-5988, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Lockheed Martin Aeronautical Systems Support Company Dba Lmassc. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-01-475-5988 |
| Primary Part Number | 3350975-1 |
| Item Name | Gasket |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Lockheed Martin Aeronautical Systems Support Company Dba Lmassc |
| Status | ACTIVE |
| Cross-Sectional Thickness | 0.022 INCHES MINIMUM AND 0.042 INCHES MAXIMUM IN |
| Style Designator | CIRCULAR |
| Material Document and Classification | MIL-R-6855 CL I, GR 60 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | SOLID SINGLE OR COMPOSITION |
| Outside Diameter | 3.390 INCHES MINIMUM AND 3.410 INCHES MAXIMUM IN |
| Aperture Diameter | 0.990 INCHES MINIMUM AND 1.010 INCHES MAXIMUM IN |
| Bolt Hole Quantity | 3 |
| Bolt Circle Diameter | 2.340 INCHES MINIMUM AND 2.360 INCHES MAXIMUM IN |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL |
| Hole Diameter | 0.256 INCHES MINIMUM AND 0.263 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED 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 |
|---|---|
| 3350975-1 PRIMARY | Lockheed Martin Aeronautical Systems Support Company Dba Lmassc (USA) |
| 3350975-1 | Aero Engineering & Manufacturing Company of California, Llc Dba Aeroengineering & Manufacturing Co (USA) |
| Reference | Meaning |
|---|---|
| 3350975-1 | 5/2 Secondary reference U.S. Government activity |
NSN 5330-01-475-5988 is a Gasket, manufactured by Lockheed Martin Aeronautical Systems Support Company Dba Lmassc, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-475-5988 has 2 manufacturer part numbers on file: 3350975-1 (Lockheed Martin Aeronautical Systems Support Company Dba Lmassc), 3350975-1 (Aero Engineering & Manufacturing Company of California, Llc Dba Aeroengineering & Manufacturing Co).
Key specifications for 3350975-1: Cross-Sectional Thickness: 0.022 INCHES MINIMUM AND 0.042 INCHES MAXIMUM IN; Style Designator: CIRCULAR; Material Document and Classification: MIL-R-6855 CL I, GR 60 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: SOLID SINGLE OR COMPOSITION. 10 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.