The Gasket, cataloged under National Stock Number 5330-01-207-7637, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc. Government technical data includes 7 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-01-207-7637 |
| Primary Part Number | 66128-H-989 |
| Item Name | Gasket |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc |
| Status | ACTIVE |
| Cross-Sectional Thickness | 0.031 INCHES NOMINAL IN |
| Style Designator | CIRCULAR |
| Material Document and Classification | QQ-C-501 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR METAL |
| Outside Diameter | 1.250 INCHES NOMINAL IN |
| Aperture Diameter | 1.031 INCHES NOMINAL IN |
| Material | COPPER OVERALL |
| 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 |
|---|---|
| 66128-H-989 PRIMARY | Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc (USA) |
| Reference | Meaning |
|---|---|
| 178162 1-1/2IN PIECE 26 | 5/9 Secondary reference U.S. Government activity |
| 178162 1-1/2IN PIECE 26 | C/1 Advisory reference — outside the item-of-supply concept Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc |
NSN 5330-01-207-7637 is a Gasket, manufactured by Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-207-7637 has 1 manufacturer part number on file: 66128-H-989 (Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc).
Key specifications for 66128-H-989: Cross-Sectional Thickness: 0.031 INCHES NOMINAL IN; Style Designator: CIRCULAR; Material Document and Classification: QQ-C-501 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: RECTANGULAR METAL. 7 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.