PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

8278-G501Mount Assembly,pressure Gauge

Howell Laboratories Inc Dba Howell Laboratories Inc · NSN 6685-01-561-5506 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-01-561-5506 — this item is cataloged by the U.S. Government under National Stock Number 6685-01-561-5506. Primary manufacturer part number: 8278-G501.
Features
  • Mount Assembly,pressure Gauge — FSC 6685
  • Pressure Rating: ERR-060
  • 4 verified cross-references
  • Primary manufacturer: Howell Laboratories Inc Dba Howell Laboratories Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Mount Assembly,pressure Gauge, cataloged under National Stock Number 6685-01-561-5506, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Howell Laboratories Inc Dba Howell Laboratories Inc. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6685-01-561-5506
Primary Part Number8278-G501
Item NameMount Assembly,pressure Gauge
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerHowell Laboratories Inc Dba Howell Laboratories Inc
StatusACTIVE
Pressure RatingERR-060
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
9540-00-251-2595 INTERCHANGEABLE
Angle,structural
5120-00-288-778351202887793 INTERCHANGEABLE
Tuning Wand,electronic Equipment
General Services Administration Federal Supply Service
5910-00-648-9400 INTERCHANGEABLE
Capacitor,fixed,ceramic Dielectr
6530-01-328-3639 INTERCHANGEABLE
Pouch,mailing,fecal Specimen
6760-01-445-79388278 INTERCHANGEABLE
Lens,enlarger
National Graphic Supply Corp Dba National Business Equipment & Supply
Cross-Reference Index
Part NumberManufacturer
8278B-G501 Howell Laboratories Inc Dba Howell Laboratories Inc (USA)
8278-G501 PRIMARY Howell Laboratories Inc Dba Howell Laboratories Inc (USA)
8278 Howell Laboratories Inc Dba Howell Laboratories Inc (USA)
8014 ITEM 5 Howell Laboratories Inc Dba Howell Laboratories Inc (USA)
Related Parts
9540-00-251-2595INTERCHANGEABLE
ANGLE,STRUCTURAL
5120-00-288-7783INTERCHANGEABLE
TUNING WAND,ELECTRONIC EQUIPMENT
51202887793
5910-00-648-9400INTERCHANGEABLE
CAPACITOR,FIXED,CERAMIC DIELECTR
6530-01-328-3639INTERCHANGEABLE
POUCH,MAILING,FECAL SPECIMEN
6760-01-445-7938INTERCHANGEABLE
LENS,ENLARGER
8278

Frequently Asked Questions

What is NSN 6685-01-561-5506?

NSN 6685-01-561-5506 is a Mount Assembly,pressure Gauge, manufactured by Howell Laboratories Inc Dba Howell Laboratories Inc, classified under FSC 6685 (No Item Name Available). Status: active.

What are the part numbers for NSN 6685-01-561-5506?

NSN 6685-01-561-5506 has 4 cross-referenced part numbers: 8278B-G501 (Howell Laboratories Inc Dba Howell Laboratories Inc), 8278-G501 (Howell Laboratories Inc Dba Howell Laboratories Inc), 8278 (Howell Laboratories Inc Dba Howell Laboratories Inc), 8014 ITEM 5 (Howell Laboratories Inc Dba Howell Laboratories Inc).

What NSN replaces 6685-01-561-5506?

There are 5 known substitutes for 6685-01-561-5506: 9540-00-251-2595, 5120-00-288-7783, 5910-00-648-9400 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 8278-G501?

Key specifications for 8278-G501: Pressure Rating: ERR-060; Special Features: NHA: CHLORINE MONITOR, P/N 8014; ASSEMBLY CONSISTS OF: 1EA. GAUGE MOUNTING PLATE, 2EA. MOUNTING PLATE STANDOFF, 1EA. PRESSURE GAUGE NSN 6685-01-523-8839; 1EA. 0.250 INCH FEMALE CONNECT0R, AND VARIOUS HARDWARE IN; End Item Identification: LHD 8 MAKIN ISLAND. 3 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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