The Gage,pressure,dial Indicating, cataloged under National Stock Number 6685-01-673-0145, is classified within Federal Supply Class 6685 (Pressure, Temperature, and Humidity Measuring and Controlling Instruments) of the Instruments and Laboratory Equipment group. The manufacturer of record is Naval Inventory Control Point Mechanicsburg. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6685-01-673-0145 |
| Primary Part Number | EA243PPPEWAO OXYGEN CLEANCP |
| Item Name | Gage,pressure,dial Indicating |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Criticality Code Justification | ZZZY |
| Reference Number Differentiating Characteristics | CLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| EA243PPPEWAO OXYGEN CLEANCP | Naval Inventory Control Point Mechanicsburg (USA) |
| 504-8200941 AY 90 ITEM NO 29CP | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| 504-8200941 AY 90 ITEM NO 29 | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
| EA243PPPEWAO OXYGEN CLEAN | 5/1 Secondary reference Mmc Metrology Lab, Inc. Dba Mmc Metrology Lab Inc |
| EA243PPPEWAO OXYGEN CLEAN | 3/1 Design control — primary reference Ashcroft Inc Dba Heise |
NSN 6685-01-673-0145 is a Gage,pressure,dial Indicating, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-01-673-0145 has 2 manufacturer part numbers on file: EA243PPPEWAO OXYGEN CLEANCP (Naval Inventory Control Point Mechanicsburg), 504-8200941 AY 90 ITEM NO 29CP (Naval Inventory Control Point Mechanicsburg).
Key specifications for EA243PPPEWAO OXYGEN CLEANCP: Criticality Code Justification: ZZZY; End Item Identification: GAGE BOARD ASSEMBLY; Reference Number Differentiating Characteristics: CLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D. 2 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.