The Seal,plain, cataloged under National Stock Number 5330-01-522-4376, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Trelleborg Sealing Solutions Us, Inc.. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 4 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5330-01-522-4376 |
| Primary Part Number | W10-MH-R-345-K-T07 |
| Item Name | Seal,plain |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Trelleborg Sealing Solutions Us, Inc. |
| Status | ACTIVE |
| Seal Width | 0.281 INCHES MINIMUM AND 0.291 INCHES MAXIMUM IN |
| Housing Bore Diameter | 4.375 INCHES MINIMUM AND 4.378 INCHES MAXIMUM IN |
| Material Document and Classification | HASTELLOY MFR REF SINGLE MATERIAL RESPONSE SPRING |
| Material Document and Classification | TURCON 07 MFR REF SINGLE MATERIAL RESPONSE SEALING ELEMENT |
| Cross-Sectional Shape Style | C-SECTION W/ HELICAL SPRING |
| Accommodated Shaft Diameter | 3.997 INCHES MINIMUM AND 4.000 INCHES MAXIMUM IN |
| Material | NICKEL ALLOY SPRING |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE SEALING ELEMENT |
| 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 |
|---|---|
| W10-MH-R-345-K-T07 PRIMARY | Trelleborg Sealing Solutions Us, Inc. (USA) |
| 42027 | Moog Inc. Dba Ampac-Isp Corp (USA) |
| LA848-42015 ITEM 32 | Moog Inc. Dba Ampac-Isp Corp (USA) |
| LA848-42015-TD ITEM 1.32 | Moog Inc. Dba Ampac-Isp Corp (USA) |
| Reference | Meaning |
|---|---|
| W10-MH-R-345-K-T07 | 3/9 Design control — primary reference Trelleborg Sealing Solutions Us, Inc. Dba Trelleborg Sealing Solutions Us, Inc |
NSN 5330-01-522-4376 is a Seal,plain, manufactured by Trelleborg Sealing Solutions Us, Inc., classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-522-4376 has 4 manufacturer part numbers on file: W10-MH-R-345-K-T07 (Trelleborg Sealing Solutions Us, Inc.), 42027 (Moog Inc. Dba Ampac-Isp Corp), LA848-42015 ITEM 32 (Moog Inc. Dba Ampac-Isp Corp), LA848-42015-TD ITEM 1.32 (Moog Inc. Dba Ampac-Isp Corp).
Key specifications for W10-MH-R-345-K-T07: Seal Width: 0.281 INCHES MINIMUM AND 0.291 INCHES MAXIMUM IN; Housing Bore Diameter: 4.375 INCHES MINIMUM AND 4.378 INCHES MAXIMUM IN; Material Document and Classification: HASTELLOY MFR REF SINGLE MATERIAL RESPONSE SPRING; Material Document and Classification: TURCON 07 MFR REF SINGLE MATERIAL RESPONSE SEALING ELEMENT. 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.