PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1684-1Pp Trap Fuel Surge Protector

Fisheries Supply Co Div Fisheries Supply Company · NSN 2040-01-657-9370 · FSC 2040 · No Item Name Available
Verified by PartsTable
NSN 2040-01-657-9370 — this item is cataloged by the U.S. Government under National Stock Number 2040-01-657-9370. Primary manufacturer part number: 1684-1.
Features
  • Pp Trap Fuel Surge Protector — FSC 2040
  • 2 verified cross-references
  • Primary manufacturer: Fisheries Supply Co Div Fisheries Supply Company
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Pp Trap Fuel Surge Protector, cataloged under National Stock Number 2040-01-657-9370, is classified within Federal Supply Class 2040 (No Item Name Available) of the Ship and Marine Equipment group. The primary manufacturer of record is Fisheries Supply Co Div Fisheries Supply Company. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2040-01-657-9370
Primary Part Number1684-1
Item NamePp Trap Fuel Surge Protector
FSC / FSG2040 / 20 — No Item Name Available
ManufacturerFisheries Supply Co Div Fisheries Supply Company
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
6625-00-009-6296955528-6 INTERCHANGEABLE
Shunt,instrument
Raytheon Company Dba Raytheon
5950-00-043-2570546-9210-002 INTERCHANGEABLE
Coil,radio Frequency
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
5365-00-339-2605 INTERCHANGEABLE
Spacer,sleeve
2910-00-478-823329295 INTERCHANGEABLE
Retainer Assembly
Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
5307-00-724-216616841 INTERCHANGEABLE
Stud,plain
Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc.
5960-00-879-5078 INTERCHANGEABLE
Electron Tube
5815-01-010-8547 INTERCHANGEABLE
Block,hinge-Door
5110-01-434-9896 INTERCHANGEABLE
File,hand
5340-01-525-2132 INTERCHANGEABLE
Clip,spring Tension
1730-01-535-9314 INTERCHANGEABLE
Fuse,time Delay
Cross-Reference Index
Part NumberManufacturer
1684-1 PRIMARY Fisheries Supply Co Div Fisheries Supply Company (USA)
1684-6 Brunswick Corp Dba Mercury Marine Div Mercury Marine (USA)
Related Parts
6625-00-009-6296INTERCHANGEABLE
SHUNT,INSTRUMENT
955528-6
5950-00-043-2570INTERCHANGEABLE
COIL,RADIO FREQUENCY
546-9210-002
5365-00-339-2605INTERCHANGEABLE
SPACER,SLEEVE
2910-00-478-8233INTERCHANGEABLE
RETAINER ASSEMBLY
29295
5307-00-724-2166INTERCHANGEABLE
STUD,PLAIN
16841
5960-00-879-5078INTERCHANGEABLE
ELECTRON TUBE
5815-01-010-8547INTERCHANGEABLE
BLOCK,HINGE-DOOR
5110-01-434-9896INTERCHANGEABLE
FILE,HAND
5340-01-525-2132INTERCHANGEABLE
CLIP,SPRING TENSION
1730-01-535-9314INTERCHANGEABLE
FUSE,TIME DELAY

Frequently Asked Questions

What is NSN 2040-01-657-9370?

NSN 2040-01-657-9370 is a Pp Trap Fuel Surge Protector, manufactured by Fisheries Supply Co Div Fisheries Supply Company, classified under FSC 2040 (No Item Name Available). Status: active.

What are the part numbers for NSN 2040-01-657-9370?

NSN 2040-01-657-9370 has 2 cross-referenced part numbers: 1684-1 (Fisheries Supply Co Div Fisheries Supply Company), 1684-6 (Brunswick Corp Dba Mercury Marine Div Mercury Marine).

What NSN replaces 2040-01-657-9370?

There are 10 known substitutes for 2040-01-657-9370: 6625-00-009-6296, 5950-00-043-2570, 5365-00-339-2605 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1684-1?

Key specifications for 1684-1: End Item Identification: USCG 26FT OTH-IV; PN 26-CB-OTH-IV-110-001 FT. 1 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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