The Dampener,fluid Pressure, cataloged under National Stock Number 6685-01-630-6937, 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 11 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6685-01-630-6937 |
| Primary Part Number | 516-5486648 ITEM F126D0 |
| Item Name | Dampener,fluid Pressure |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Removable Piston | NOT PROVIDED |
| Operating Pressure Range | +1000.0 TO 6000.0 POUNDS PER SQUARE INCH LBS |
| Criticality Code Justification | ZZZY |
| Material Document and Classification | AISI 316 ASSN STD SINGLE MATERIAL RESPONSE |
| Threaded Direct Pressure Connection | NOT PROVIDED |
| Fluid Type for Which Designed | AIR |
| Thread Size | 18 |
| Screw Thread Series Designator | UN |
| Material | STEEL COMP 316 |
| Connection Quantity | 2 |
| 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 | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| 516-5486648 ITEM F126D0 | Naval Inventory Control Point Mechanicsburg (USA) |
| MODEL 105,TYPE 3 CLASS HD0 | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| MODEL 105,TYPE 3 CLASS H | 5/1 Secondary reference Operating & Maintenance Specialties Inc |
| 516-5486648 ITEM F126 | 3/1 Design control — primary reference Naval Sea Systems Command |
NSN 6685-01-630-6937 is a Dampener,fluid Pressure, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-01-630-6937 has 2 manufacturer part numbers on file: 516-5486648 ITEM F126D0 (Naval Inventory Control Point Mechanicsburg), MODEL 105,TYPE 3 CLASS HD0 (Naval Inventory Control Point Mechanicsburg).
Key specifications for 516-5486648 ITEM F126D0: Removable Piston: NOT PROVIDED; Operating Pressure Range: +1000.0 TO 6000.0 POUNDS PER SQUARE INCH LBS; Criticality Code Justification: ZZZY; Material Document and Classification: AISI 316 ASSN STD SINGLE MATERIAL RESPONSE. 11 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.