PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

6448-13Diaphragm,liquid Sight Indicator

King Engineering Corporation Dba King-Gage Systems · NSN 6680-01-136-3218 · FSC 6680 · No Item Name Available
Verified by PartsTable
NSN 6680-01-136-3218 — this item is cataloged by the U.S. Government under National Stock Number 6680-01-136-3218. Primary manufacturer part number: 6448-13.
Features
  • Diaphragm,liquid Sight Indicator — FSC 6680
  • General Characteristics Item Description: SILICONE RUBBER; CUP SHAPED
  • 2 verified cross-references
  • Primary manufacturer: King Engineering Corporation Dba King-Gage Systems
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Diaphragm,liquid Sight Indicator, cataloged under National Stock Number 6680-01-136-3218, is classified within Federal Supply Class 6680 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is King Engineering Corporation Dba King-Gage Systems. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6680-01-136-3218
Primary Part Number6448-13
Item NameDiaphragm,liquid Sight Indicator
FSC / FSG6680 / 66 — No Item Name Available
ManufacturerKing Engineering Corporation Dba King-Gage Systems
StatusACTIVE
General Characteristics Item DescriptionSILICONE RUBBER; CUP SHAPED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4820-00-036-2491R639-9 INTERCHANGEABLE
Seat,valve
Derbyshire Machine & Tool Co
4730-00-127-88226848 INTERCHANGEABLE
Clamp,hose
Epicor Industries Inc Ideal Div
2815-00-146-7546 INTERCHANGEABLE
Tube,water
4320-00-364-64461976 INTERCHANGEABLE
Impeller,pump,centrifugal
Brinkley Technology Group Llc Dba Hercules Manufacturing
4730-00-419-30861115950-1 INTERCHANGEABLE
Clamp,hose
Us Army Aviation and Missile Command
3110-00-516-5289203TF INTERCHANGEABLE
Bearing,ball,annular
Fag Bearings Corporation
5950-00-538-67736448-1 INTERCHANGEABLE
Coil,electrical
Te Connectivity Corporation
5325-00-637-4156 INTERCHANGEABLE
Grommet,nonmetallic
6135-00-812-9039ZM9 INTERCHANGEABLE
Battery,nonrechargeable
Yosemite Investment Inc Dba North American Capacitor Co
6135-00-985-7845003-360013R00 INTERCHANGEABLE
Battery,nonrechargeable
Insitu, Inc.
Cross-Reference Index
Part NumberManufacturer
6448-13 PRIMARY King Engineering Corporation Dba King-Gage Systems (USA)
6448 King Engineering Corporation Dba King-Gage Systems (USA)
Related Parts
4820-00-036-2491INTERCHANGEABLE
SEAT,VALVE
R639-9
4730-00-127-8822INTERCHANGEABLE
CLAMP,HOSE
6848
2815-00-146-7546INTERCHANGEABLE
TUBE,WATER
4320-00-364-6446INTERCHANGEABLE
IMPELLER,PUMP,CENTRIFUGAL
1976
4730-00-419-3086INTERCHANGEABLE
CLAMP,HOSE
1115950-1
3110-00-516-5289INTERCHANGEABLE
BEARING,BALL,ANNULAR
203TF
5950-00-538-6773INTERCHANGEABLE
COIL,ELECTRICAL
6448-1
5325-00-637-4156INTERCHANGEABLE
GROMMET,NONMETALLIC
6135-00-812-9039INTERCHANGEABLE
BATTERY,NONRECHARGEABLE
ZM9
6135-00-985-7845INTERCHANGEABLE
BATTERY,NONRECHARGEABLE
003-360013R00
4320-01-006-2862INTERCHANGEABLE
SPACER,PUMP
644813
5120-01-130-8880INTERCHANGEABLE
WRENCH,TORQUE

Frequently Asked Questions

What is NSN 6680-01-136-3218?

NSN 6680-01-136-3218 is a Diaphragm,liquid Sight Indicator, manufactured by King Engineering Corporation Dba King-Gage Systems, classified under FSC 6680 (No Item Name Available). Status: active.

What are the part numbers for NSN 6680-01-136-3218?

NSN 6680-01-136-3218 has 2 cross-referenced part numbers: 6448-13 (King Engineering Corporation Dba King-Gage Systems), 6448 (King Engineering Corporation Dba King-Gage Systems).

What NSN replaces 6680-01-136-3218?

There are 12 known substitutes for 6680-01-136-3218: 4820-00-036-2491, 4730-00-127-8822, 2815-00-146-7546 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 6448-13?

Key specifications for 6448-13: General Characteristics Item Description: SILICONE RUBBER; CUP SHAPED. 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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