The Indicator,pressure, cataloged under National Stock Number 6685-01-543-3554, 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 6685-01-543-3554 |
| Primary Part Number | 280912-0005 ITEM 1L1 |
| Item Name | Indicator,pressure |
| 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 | MATERIAL CONROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONROL STANDARD FOR LEVEL I ITEMS |
| 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 |
|---|---|
| 280912-0005 ITEM 1L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 233985-0002L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| 280912-0005 ITEM 1 | 5/1 Secondary reference U.S. Government activity |
| 280912-1005 IT 1 | 5/1 Secondary reference U.S. Government activity |
| 233985-0002 | 3/1 Design control — primary reference U.S. Government activity |
NSN 6685-01-543-3554 is a Indicator,pressure, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-01-543-3554 has 2 manufacturer part numbers on file: 280912-0005 ITEM 1L1 (Naval Inventory Control Point Mechanicsburg), 233985-0002L1 (Naval Inventory Control Point Mechanicsburg).
Key specifications for 280912-0005 ITEM 1L1: Criticality Code Justification: ZZZY; Special Features: (INAVY) INDICATOR, DIFFERENTIAL PRESSURE; Part Name Assigned by Controlling Agency: (DRAWING) DIFFERENTIAL PRESSURE INDICATOR; End Item Identification: FIRING VAVLE ASSEMBLY. 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.