The Seal,plain, cataloged under National Stock Number 5330-01-186-5438, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Bal Seal Engineering, Inc.. Government technical data includes 11 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5330-01-186-5438 |
| Primary Part Number | 301A-005-SP-23B-X6700 |
| Item Name | Seal,plain |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Bal Seal Engineering, Inc. |
| Status | ACTIVE |
| Seal Width | 0.042 INCHES MINIMUM AND 0.052 INCHES MAXIMUM IN |
| Housing Bore Diameter | 0.249 INCHES MINIMUM AND 0.251 INCHES MAXIMUM IN |
| Material Document and Classification | QQ-W-423 COMP 302 FED SPEC SINGLE MATERIAL RESPONSE SPRING |
| Material Document and Classification | SP-23-3 FSCM 09055 MFR REF SINGLE MATERIAL RESPONSE SEALING ELEMENT A |
| Material Document and Classification | SP-23-3 FSCM 09055 MFR REF SINGLE MATERIAL RESPONSE SEALING ELEMENT B |
| Cross-Sectional Shape Style | C-SECTION W/ HELICAL SPRING |
| Accommodated Shaft Diameter | 0.1873 INCHES MINIMUM AND 0.1877 INCHES MAXIMUM IN |
| Material | STEEL COMP 302 SPRING |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE SEALING ELEMENT B |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE SEALING ELEMENT A |
| Construction | SOLID |
| 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 |
|---|---|
| 301A-005-SP-23B-X6700 PRIMARY | Bal Seal Engineering, Inc. (USA) |
| 301A-005-SP-23-3X6700 | Bal Seal Engineering, Inc. (USA) |
| Reference | Meaning |
|---|---|
| SM-C-969821-1 | 7/2 Vendor item drawing reference U.S. Government activity |
NSN 5330-01-186-5438 is a Seal,plain, manufactured by Bal Seal Engineering, Inc., classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-186-5438 has 2 manufacturer part numbers on file: 301A-005-SP-23B-X6700 (Bal Seal Engineering, Inc.), 301A-005-SP-23-3X6700 (Bal Seal Engineering, Inc.).
Key specifications for 301A-005-SP-23B-X6700: Seal Width: 0.042 INCHES MINIMUM AND 0.052 INCHES MAXIMUM IN; Housing Bore Diameter: 0.249 INCHES MINIMUM AND 0.251 INCHES MAXIMUM IN; Material Document and Classification: QQ-W-423 COMP 302 FED SPEC SINGLE MATERIAL RESPONSE SPRING; Material Document and Classification: SP-23-3 FSCM 09055 MFR REF SINGLE MATERIAL RESPONSE SEALING ELEMENT A. 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.