The Seal,plain, cataloged under National Stock Number 5330-01-503-3657, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Saint-Gobain Performance Plastics Corporation Div Omniseal Solutions. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-01-503-3657 |
| Primary Part Number | 1810143-1 |
| Item Name | Seal,plain |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Saint-Gobain Performance Plastics Corporation Div Omniseal Solutions |
| Status | ACTIVE |
| Seal Width | 0.165 INCHES MINIMUM AND 0.171 INCHES MAXIMUM IN |
| Housing Bore Diameter | 7.347 INCHES MINIMUM AND 7.349 INCHES MAXIMUM IN |
| Material Document and Classification | AMS 5876 ASSN STD SINGLE MATERIAL RESPONSE SPRING |
| Cross-Sectional Shape Style | C-SECTION W/ SPRING RING |
| Accommodated Shaft Diameter | 6.978 INCHES MINIMUM AND 7.008 INCHES MAXIMUM IN |
| Material | COBALT ALLOY SPRING |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE JACKET |
| 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 |
|---|---|
| 090002345 | Triman Industries Inc (USA) |
| 1810143-1 PRIMARY | Saint-Gobain Performance Plastics Corporation Div Omniseal Solutions (USA) |
| 090002345 | Saint-Gobain Performance Plastics Corporation Div Omniseal Solutions (USA) |
| Reference | Meaning |
|---|---|
| 1810143-1 | 7/2 Vendor item drawing reference Northrop Grumman Systems Corporation |
| 90002345 | 5/9 Secondary reference Saint-Gobain Performance Plastics Corporation Div Omniseal Solutions |
NSN 5330-01-503-3657 is a Seal,plain, manufactured by Saint-Gobain Performance Plastics Corporation Div Omniseal Solutions, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-503-3657 has 3 manufacturer part numbers on file: 090002345 (Triman Industries Inc), 1810143-1 (Saint-Gobain Performance Plastics Corporation Div Omniseal Solutions), 090002345 (Saint-Gobain Performance Plastics Corporation Div Omniseal Solutions).
Key specifications for 1810143-1: Seal Width: 0.165 INCHES MINIMUM AND 0.171 INCHES MAXIMUM IN; Housing Bore Diameter: 7.347 INCHES MINIMUM AND 7.349 INCHES MAXIMUM IN; Material Document and Classification: AMS 5876 ASSN STD SINGLE MATERIAL RESPONSE SPRING; Cross-Sectional Shape Style: C-SECTION W/ SPRING RING. 8 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.