The Gage Pressure Simpl, cataloged under National Stock Number 4220-01-660-2103, is classified within Federal Supply Class 4220 (Marine Lifesaving and Diving Equipment) of the Fire Fighting, Rescue, and Safety Equipment group. The manufacturer of record is Mmc Metrology Lab, Inc. Dba Mmc Metrology Lab Inc. Government technical data includes 2 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4220-01-660-2103 |
| Primary Part Number | EA23-3PVP-LWAX |
| Item Name | Gage Pressure Simpl |
| FSC / FSG | 4220 / 42 — Marine Lifesaving and Diving Equipment |
| Manufacturer | Mmc Metrology Lab, Inc. Dba Mmc Metrology Lab Inc |
| Status | ACTIVE |
| Criticality Code Justification | ZZZY |
| Reference Number Differentiating Characteristics | MATERIAL CONTROLLED IAW SS800-AG-MAN-010/P9290 SYSTEM CERTIFICATION PROCEDURES AND CRITERIA MANUAL FOR DEEP SUBMERGENCE SYSTEMS AND REQUIRES CLEANING, PACKING, AND MARKING IAW MIL-STD-1622 OR MIL-STD-1330 AS DEEMED APPLICABLE; CRITICAL ITEM FOR SAFETY AND SURVIVAL OF DEEP SUBMERGENCE RESEARCH AND RESCUE VEHICALS AS DIFFERENTIATED BY SPECIAL TEST FEATURES |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| EA23-3PVP-LWAX | Mmc Metrology Lab, Inc. Dba Mmc Metrology Lab Inc (USA) |
| EA23-3PVP-LWAXD0 | Naval Inventory Control Point Mechanicsburg (USA) |
| 516-7329941 ITEM F78D0 | Naval Inventory Control Point Mechanicsburg (USA) |
| 516-5486651 ITEM F78D0 | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| 516-5486651 ITEM F78 | 3/1 Design control — primary reference Naval Sea Systems Command |
| 516-7329941 ITEM F78 | 5/1 Secondary reference Naval Sea Systems Command |
NSN 4220-01-660-2103 is a Gage Pressure Simpl, manufactured by Mmc Metrology Lab, Inc. Dba Mmc Metrology Lab Inc, classified under FSC 4220, Marine Lifesaving and Diving Equipment. Status: active.
NSN 4220-01-660-2103 has 4 manufacturer part numbers on file: EA23-3PVP-LWAX (Mmc Metrology Lab, Inc. Dba Mmc Metrology Lab Inc), EA23-3PVP-LWAXD0 (Naval Inventory Control Point Mechanicsburg), 516-7329941 ITEM F78D0 (Naval Inventory Control Point Mechanicsburg), 516-5486651 ITEM F78D0 (Naval Inventory Control Point Mechanicsburg).
Key specifications for EA23-3PVP-LWAX: Criticality Code Justification: ZZZY; Part Name Assigned by Controlling Agency: GAGE PRESSURE SIMPLEX; Reference Number Differentiating Characteristics: MATERIAL CONTROLLED IAW SS800-AG-MAN-010/P9290 SYSTEM CERTIFICATION PROCEDURES AND CRITERIA MANUAL FOR DEEP SUBMERGENCE SYSTEMS AND REQUIRES CLEANING, PACKING, AND MARKING IAW MIL-STD-1622 OR MIL-STD-1330 AS DEEMED APPLICABLE; CRITICAL ITEM FOR SAFETY AND SURVIVAL OF DEEP SUBMERGENCE RESEARCH AND RESCUE VEHICALS AS DIFFERENTIATED BY SPECIAL TEST FEATURES. 2 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). 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.