The Gasket, cataloged under National Stock Number 5330-00-564-7552, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Lockheed Martin Corporation Div Rms - Mitchel Field. 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 | 5330-00-564-7552 |
| Primary Part Number | 321135 |
| Item Name | Gasket |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Lockheed Martin Corporation Div Rms - Mitchel Field |
| Status | ACTIVE |
| FSC Application Data | POLAR CONVERTER,AIRCRAFT BOMBING FIRE CONTROL |
| Cross-Sectional Thickness | 0.250 INCHES NOMINAL IN |
| Inside Corner Radius | 0.125 INCHES NOMINAL IN |
| Style Designator | NON-CIRCULAR |
| Cross-Sectional Shape Style | SOLID SINGLE OR COMPOSITION |
| Aperture Width | 2.063 INCHES NOMINAL IN |
| Aperture Length | 2.063 INCHES NOMINAL IN |
| Outside Corner Radius | 0.313 INCHES NOMINAL IN |
| Material | RUBBER SYNTHETIC 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 |
|---|---|
| 321135 PRIMARY | Lockheed Martin Corporation Div Rms - Mitchel Field (USA) |
NSN 5330-00-564-7552 is a Gasket, manufactured by Lockheed Martin Corporation Div Rms - Mitchel Field, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-564-7552 has 1 manufacturer part number on file: 321135 (Lockheed Martin Corporation Div Rms - Mitchel Field).
1 possible match (shared part number, not a government interchangeability claim): 5325-01-379-6676. Verify interchangeability with system specifications before substitution.
Key specifications for 321135: FSC Application Data: POLAR CONVERTER,AIRCRAFT BOMBING FIRE CONTROL; Cross-Sectional Thickness: 0.250 INCHES NOMINAL IN; Inside Corner Radius: 0.125 INCHES NOMINAL IN; Style Designator: NON-CIRCULAR. 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.