The Seal,plain, cataloged under National Stock Number 5330-01-723-5042, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Stemco Inc Sub of Coltec Industries Inc. Government technical data includes 8 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-01-723-5042 |
| Primary Part Number | 307-0723 |
| Item Name | Seal,plain |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Stemco Inc Sub of Coltec Industries Inc |
| Status | ACTIVE |
| Operating Medium | OIL |
| Seal Width | 0.5629 INCHES NOMINAL IN |
| Outside Diameter | 6.025 INCHES NOMINAL IN |
| Housing Bore Diameter | 6.008 INCHES NOMINAL IN |
| Color | BLACK |
| Accommodated Shaft Diameter | 4.25 INCHES NOMINAL IN |
| Material | RUBBER BUTADIENE NITRILE AND PLASTIC POLYTETRAFLUOROETHYLENE SEALING ELEMENT |
| Construction | TWO-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 |
|---|---|
| 307-0723 PRIMARY | Stemco Inc Sub of Coltec Industries Inc (USA) |
| A 1205Y1975 | Meritor Heavy Vehicle Systems, Llc (USA) |
| Reference | Meaning |
|---|---|
| MER0223 | 5/1 Secondary reference Meritor Heavy Vehicle Systems, Llc |
| MER0123 | 5/1 Secondary reference Meritor Heavy Vehicle Systems, Llc |
NSN 5330-01-723-5042 is a Seal,plain, manufactured by Stemco Inc Sub of Coltec Industries Inc, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-723-5042 has 2 manufacturer part numbers on file: 307-0723 (Stemco Inc Sub of Coltec Industries Inc), A 1205Y1975 (Meritor Heavy Vehicle Systems, Llc).
Key specifications for 307-0723: Operating Medium: OIL; Seal Width: 0.5629 INCHES NOMINAL IN; Outside Diameter: 6.025 INCHES NOMINAL IN; Housing Bore Diameter: 6.008 INCHES NOMINAL IN. 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.