The Retainer,seal, cataloged under National Stock Number 5330-00-370-9036, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 13 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-00-370-9036 |
| Primary Part Number | 89HM1557-1 |
| Item Name | Retainer,seal |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Flange Thickness | 0.469 INCHES NOMINAL IN |
| Body Outside Diameter | 1.558 INCHES NOMINAL IN |
| Style Designator | FLANGED |
| Bolt Hole Diameter | 0.047 INCHES NOMINAL IN |
| Seal Seat Diameter | 1.250 INCHES NOMINAL IN |
| Aperture Diameter | 1.000 INCHES NOMINAL IN |
| Mounting Flange Length | 0.750 INCHES NOMINAL IN |
| Mounting Flange Width | 0.750 INCHES NOMINAL IN |
| Bolt Hole Quantity | 2 |
| Bolt Circle Diameter | 1.623 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY OVERALL |
| Seal Seat Depth | 0.281 INCHES NOMINAL IN |
| Construction | SOLID |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 89HM1557-1 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| 89HM1557 | D/9 Drawing number reference only Northrop Grumman Systems Corporation |
NSN 5330-00-370-9036 is a Retainer,seal, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-370-9036 has 1 manufacturer part number on file: 89HM1557-1 (Northrop Grumman Systems Corporation).
Key specifications for 89HM1557-1: Overall Height: 1.156 INCHES NOMINAL IN; Flange Thickness: 0.469 INCHES NOMINAL IN; Body Outside Diameter: 1.558 INCHES NOMINAL IN; Style Designator: FLANGED. 13 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.
NSN 5330-00-370-9036 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.