PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

F53Indicator,sight,liquid

Ldi Industries, Inc. Dba Ldi Industries Inc · NSN 6680-01-174-3791 · FSC 6680 · No Item Name Available
Verified by PartsTable
NSN 6680-01-174-3791 — this item is cataloged by the U.S. Government under National Stock Number 6680-01-174-3791. Primary manufacturer part number: F53.
Features
  • Indicator,sight,liquid — FSC 6680
  • 3 verified cross-references
  • Primary manufacturer: Ldi Industries, Inc. Dba Ldi Industries Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Indicator,sight,liquid, cataloged under National Stock Number 6680-01-174-3791, is classified within Federal Supply Class 6680 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Ldi Industries, Inc. Dba Ldi Industries Inc. This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameIndicator,sight,liquid
FSC / FSG6680 — No Item Name Available (FSG 66)
ManufacturersCaterpillar Inc Div Caterpillar Defense (CAGE 11083); Ldi Industries, Inc. Dba Ldi Industries Inc (CAGE 24346); Oil Rite Corp (CAGE 80885)
Technical Specifications
ParameterValue
NSN6680-01-174-3791
Primary Part NumberF53
Item NameIndicator,sight,liquid
FSC / FSG6680 / 66 — No Item Name Available
ManufacturerLdi Industries, Inc. Dba Ldi Industries Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
6695-00-013-480510650 INTERCHANGEABLE
Meter Movement
Astronautics Corporation of America
3110-00-144-8958110BC02 INTERCHANGEABLE
Bearing,ball,annular
Anti-Friction Bearing Mfg Assn Inc the
3110-00-156-4719 INTERCHANGEABLE
Bearing,ball,annular
4820-00-191-6873F53 INTERCHANGEABLE
Valve,check
Martin-Decker Totco, Inc Dba M/d Totco
4730-00-243-14842F1336 INTERCHANGEABLE
Fitting,lubrication
Caterpillar Inc Div Caterpillar Defense
9540-00-254-4154 INTERCHANGEABLE
Angle,structural
5905-00-258-6927 INTERCHANGEABLE
Resistor,fixed,wire Wound,induct
6240-00-267-1167584607-1 INTERCHANGEABLE
Lamp,incandescent
Raytheon Company Dba Raytheon Co
6810-00-271-14051-2270 INTERCHANGEABLE
Lead Acetate,trihydrate
Avantor Performance Materials, Inc.
3020-00-272-5889 INTERCHANGEABLE
Gear,spur
Cross-Reference Index
Part NumberManufacturer
3N6938 Caterpillar Inc Div Caterpillar Defense (USA)
F53 PRIMARY Ldi Industries, Inc. Dba Ldi Industries Inc (USA)
1822 Oil Rite Corp (USA)
Related Parts
6695-00-013-4805INTERCHANGEABLE
METER MOVEMENT
10650
3110-00-144-8958INTERCHANGEABLE
BEARING,BALL,ANNULAR
110BC02
3110-00-156-4719INTERCHANGEABLE
BEARING,BALL,ANNULAR
4820-00-191-6873INTERCHANGEABLE
VALVE,CHECK
F53
4730-00-243-1484INTERCHANGEABLE
FITTING,LUBRICATION
2F1336
9540-00-254-4154INTERCHANGEABLE
ANGLE,STRUCTURAL
5905-00-258-6927INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND,INDUCT
6240-00-267-1167INTERCHANGEABLE
LAMP,INCANDESCENT
584607-1
6810-00-271-1405INTERCHANGEABLE
LEAD ACETATE,TRIHYDRATE
1-2270
3020-00-272-5889INTERCHANGEABLE
GEAR,SPUR
9540-00-288-1145INTERCHANGEABLE
ANGLE,STRUCTURAL
5915-00-294-9295INTERCHANGEABLE
FILTER,RADIO FREQUENCY INTERFERE
768683-1

Frequently Asked Questions

What is NSN 6680-01-174-3791?

NSN 6680-01-174-3791 is a Indicator,sight,liquid, manufactured by Ldi Industries, Inc. Dba Ldi Industries Inc, classified under FSC 6680 (No Item Name Available). Status: active.

What are the part numbers for NSN 6680-01-174-3791?

NSN 6680-01-174-3791 has 3 cross-referenced part numbers: 3N6938 (Caterpillar Inc Div Caterpillar Defense), F53 (Ldi Industries, Inc. Dba Ldi Industries Inc), 1822 (Oil Rite Corp).

What NSN replaces 6680-01-174-3791?

There are 12 known substitutes for 6680-01-174-3791: 6695-00-013-4805, 3110-00-144-8958, 3110-00-156-4719 and 9 more. Verify interchangeability with system specifications before substitution.

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