The Cover,access, cataloged under National Stock Number 5340-00-689-1883, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Circor Pumps North America Llc. Government technical data includes 12 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-00-689-1883 |
| Primary Part Number | S503AD0102 |
| Item Name | Cover,access |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Circor Pumps North America Llc |
| Status | ACTIVE |
| Distance From First Hole Centerline to End Along Width | 0.609 INCHES NOMINAL IN |
| Corner Radius | 0.281 INCHES NOMINAL IN |
| Length | 4.844 INCHES NOMINAL IN |
| Distance Between Holes Along Length | 3.625 INCHES NOMINAL IN |
| Distance Between Holes Along Width | 3.625 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | FLAT |
| Securing Device Type | THREADED FASTENER |
| Distance From First Hole Centerline to End Along Length | 0.609 INCHES NOMINAL IN |
| Peripheral Shape Style | RECTANGLE, FOUR HOLES |
| Width | 4.844 INCHES NOMINAL IN |
| Material | STEEL |
| Body Thickness | 0.468 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| S503AD0102 PRIMARY | Circor Pumps North America Llc (USA) |
| Reference | Meaning |
|---|---|
| S503AD0102 | 5/9 Secondary reference Siemens Energy, Inc. |
NSN 5340-00-689-1883 is a Cover,access, manufactured by Circor Pumps North America Llc, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-689-1883 has 1 manufacturer part number on file: S503AD0102 (Circor Pumps North America Llc).
Key specifications for S503AD0102: Distance From First Hole Centerline to End Along Width: 0.609 INCHES NOMINAL IN; Corner Radius: 0.281 INCHES NOMINAL IN; Length: 4.844 INCHES NOMINAL IN; Distance Between Holes Along Length: 3.625 INCHES NOMINAL IN. 12 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.