The Cap,filler Opening, cataloged under National Stock Number 5340-00-362-6678, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 12 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through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-00-362-6678 |
| Primary Part Number | YP249S41-70PC13 |
| Item Name | Cap,filler Opening |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Accommodation Type | HEXAGON END GRIPPING |
| Style Designator | CIRCULAR TYPE THREADED INTERNAL |
| Filler Neck Diameter for Which Designed | 0.688 INCHES NOMINAL IN |
| Thread Diameter | 0.6880 INCHES NOMINAL IN |
| Outside Diameter | 0.859 INCHES NOMINAL IN |
| System for Which Designed | NONPRESSURIZED |
| Color | BLACK |
| Surface Treatment | OXIDE OVERALL |
| Thread Class | 2B |
| Material | STEEL OVERALL |
| Thread Series Designator | UN |
| Thread Quantity | 32.000 PER INCH |
| 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 |
|---|---|
| YP249S41-70PC13 PRIMARY | Naval Sea Systems Command (USA) |
| 76857A | Brinkley Technology Group Llc Dba Hercules Manufacturing (USA) |
| WMU2A1X | Brinkley Technology Group Llc Dba Hercules Manufacturing (USA) |
| 3871PC13 | Brinkley Technology Group Llc Dba Hercules Manufacturing (USA) |
| Reference | Meaning |
|---|---|
| 3871PC13 | 5/9 Secondary reference Hercules Engine Co Inc |
| WMU2A1X | 5/9 Secondary reference Ambac International Corporation Div Ambac International |
| WMU2A1X | 5/9 Secondary reference Haynes Corporation |
| YP249S41-70PC13 | 5/9 Secondary reference U.S. Government activity |
| WMU2A1X | 5/9 Secondary reference Hercules Engine Co Inc |
| 76857A | 5/9 Secondary reference Hercules Engine Co Inc |
| WMU2A0X | 5/9 Secondary reference Ambac International Corporation Div Ambac International |
NSN 5340-00-362-6678 is a Cap,filler Opening, manufactured by Naval Sea Systems Command, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-362-6678 has 4 manufacturer part numbers on file: YP249S41-70PC13 (Naval Sea Systems Command), 76857A (Brinkley Technology Group Llc Dba Hercules Manufacturing), WMU2A1X (Brinkley Technology Group Llc Dba Hercules Manufacturing), 3871PC13 (Brinkley Technology Group Llc Dba Hercules Manufacturing).
Key specifications for YP249S41-70PC13: Overall Height: 0.656 INCHES NOMINAL IN; Accommodation Type: HEXAGON END GRIPPING; Style Designator: CIRCULAR TYPE THREADED INTERNAL; Filler Neck Diameter for Which Designed: 0.688 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.