The Seal,nonmetallic Special Shaped, cataloged under National Stock Number 5330-01-420-0768, 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. Government technical data includes 11 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-01-420-0768 |
| Primary Part Number | 13079858-2 |
| Item Name | Seal,nonmetallic Special Shaped |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Lockheed Martin Corporation |
| Status | ACTIVE |
| Temp Rating | -40.0 FAHRENHEIT AND -40.0 FAHRENHEIT AND 250.0 FAHRENHEIT250.0 FAHRENHEIT DEGF |
| Cross-Sectional Height | 3.086 INCHES MINIMUM AND 3.086 INCHES MINIMUM AND 3.134 INCHES MAXIMUM3.134 INCHES MAXIMUM IN |
| Cross-Sectional Width | 6.564 INCHES MINIMUM AND 6.564 INCHES MINIMUM AND 6.634 INCHES MAXIMUM6.634 INCHES MAXIMUM IN |
| Hardness Rating | 55.0 SHORE DUROMETER A MINIMUM AND 75.0 SHORE DUROMETER A MAXIMUM OVERALL |
| Style Designator | OVAL |
| Material Document and Classification | MIL-G-21569, CL 1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | SPECIALSPECIAL |
| Aperture Width | 2.970 INCHES NOMINAL2.970 INCHES NOMINAL IN |
| Aperture Length | 6.459 INCHES NOMINAL6.459 INCHES NOMINAL IN |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL |
| Construction | ONE-PIECEONE-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 |
|---|---|
| 13079858-2 PRIMARY | Lockheed Martin Corporation (USA) |
| Reference | Meaning |
|---|---|
| A5373 | 5/9 Secondary reference Parker Hannifin Corporation Div Composite Sealing Systems Division |
| A5373 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 13079858-2 | 7/2 Vendor item drawing reference Northrop Grumman Systems Corporation |
NSN 5330-01-420-0768 is a Seal,nonmetallic Special Shaped, manufactured by Lockheed Martin Corporation, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-420-0768 has 1 manufacturer part number on file: 13079858-2 (Lockheed Martin Corporation).
Key specifications for 13079858-2: Temp Rating: -40.0 FAHRENHEIT AND -40.0 FAHRENHEIT AND 250.0 FAHRENHEIT250.0 FAHRENHEIT DEGF; Cross-Sectional Height: 3.086 INCHES MINIMUM AND 3.086 INCHES MINIMUM AND 3.134 INCHES MAXIMUM3.134 INCHES MAXIMUM IN; Cross-Sectional Width: 6.564 INCHES MINIMUM AND 6.564 INCHES MINIMUM AND 6.634 INCHES MAXIMUM6.634 INCHES MAXIMUM IN; Hardness Rating: 55.0 SHORE DUROMETER A MINIMUM AND 75.0 SHORE DUROMETER A MAXIMUM OVERALL. 11 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.