PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21536Indicator,sight,liquid

Coffin Turbo Pump Inc · NSN 6680-01-416-2857 · FSC 6680 · No Item Name Available
Verified by PartsTable
NSN 6680-01-416-2857 — this item is cataloged by the U.S. Government under National Stock Number 6680-01-416-2857. Primary manufacturer part number: 21536.
Features
  • Indicator,sight,liquid — FSC 6680
  • Data Furnishing Method: CLEAR WINDOW
  • Media for Which Designed: OIL
  • Furnished Data: LIQUID LEVEL
  • 2 verified cross-references
  • Primary manufacturer: Coffin Turbo Pump 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 6680-01-416-2857, is classified within Federal Supply Class 6680 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Coffin Turbo Pump Inc. Government technical data includes 3 verified specifications, 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. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6680-01-416-2857
Primary Part Number21536
Item NameIndicator,sight,liquid
FSC / FSG6680 / 66 — No Item Name Available
ManufacturerCoffin Turbo Pump Inc
StatusACTIVE
Data Furnishing MethodCLEAR WINDOW
Media for Which DesignedOIL
Furnished DataLIQUID LEVEL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
2925-00-211-402221536 INTERCHANGEABLE
Head,mounting
Skurka Aerospace Inc
2910-00-424-580018519 INTERCHANGEABLE
Filter Element,fluid
Arvinmeritor Inc
6680-00-869-624421536 INTERCHANGEABLE
Thermostatic Elemen
Leslie Controls, Inc. Dba Leslie Controls Inc
4730-01-290-9713 INTERCHANGEABLE
Flange,pipe
3130-01-326-068221536 INTERCHANGEABLE
Housing
Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
5965-01-362-5362SM-A-886429 INTERCHANGEABLE
Earphone
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
6550-01-464-4699R21536 INTERCHANGEABLE
Acetic Acid and Sulfanic Acid So
Remel Inc.
Cross-Reference Index
Part NumberManufacturer
21536 PRIMARY Coffin Turbo Pump Inc (USA)
SKB-1923 ITEM X707 Coffin Turbo Pump Inc (USA)
Related Parts
2925-00-211-4022INTERCHANGEABLE
HEAD,MOUNTING
21536
2910-00-424-5800INTERCHANGEABLE
FILTER ELEMENT,FLUID
18519
6680-00-869-6244INTERCHANGEABLE
THERMOSTATIC ELEMEN
21536
4730-01-290-9713INTERCHANGEABLE
FLANGE,PIPE
3130-01-326-0682INTERCHANGEABLE
HOUSING
21536
5965-01-362-5362INTERCHANGEABLE
EARPHONE
SM-A-886429
6550-01-464-4699INTERCHANGEABLE
ACETIC ACID AND SULFANIC ACID SO
R21536

Frequently Asked Questions

What is NSN 6680-01-416-2857?

NSN 6680-01-416-2857 is a Indicator,sight,liquid, manufactured by Coffin Turbo Pump Inc, classified under FSC 6680 (No Item Name Available). Status: active.

What are the part numbers for NSN 6680-01-416-2857?

NSN 6680-01-416-2857 has 2 cross-referenced part numbers: 21536 (Coffin Turbo Pump Inc), SKB-1923 ITEM X707 (Coffin Turbo Pump Inc).

What NSN replaces 6680-01-416-2857?

There are 7 known substitutes for 6680-01-416-2857: 2925-00-211-4022, 2910-00-424-5800, 6680-00-869-6244 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21536?

Key specifications for 21536: Data Furnishing Method: CLEAR WINDOW; Media for Which Designed: OIL; Furnished Data: LIQUID LEVEL; Special Features: BEARING SIGHT GLASS. 5 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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