PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1536Indicator,sight,liquid

Refrigeration Research, Inc. · NSN 6680-01-630-2227 · FSC 6680 · No Item Name Available
Verified by PartsTable
NSN 6680-01-630-2227 — this item is cataloged by the U.S. Government under National Stock Number 6680-01-630-2227. Primary manufacturer part number: 1536.
Features
  • Indicator,sight,liquid — FSC 6680
  • 2 verified cross-references
  • Primary manufacturer: Refrigeration Research, 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 6680-01-630-2227, is classified within Federal Supply Class 6680 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Refrigeration Research, Inc.. This item has 2 commercial cross-references from 2 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)
ManufacturersRefrigeration Research, Inc. (CAGE 97765); W1d1 Natick Soldier Center Dba Us Army Ccdc Soldier Center Div Combat Capabilities Development Command - Soldier Center (CAGE 81337)
Technical Specifications
ParameterValue
NSN6680-01-630-2227
Primary Part Number1536
Item NameIndicator,sight,liquid
FSC / FSG6680 / 66 — No Item Name Available
ManufacturerRefrigeration Research, Inc.
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5330-00-409-383615-36 INTERCHANGEABLE
Packing,preformed
W.w. Grainger, Inc. Div Government Sales Division
5905-00-795-2012 INTERCHANGEABLE
Resistor,fixed,wire Wound,induct
6520-01-005-2557008824-000 INTERCHANGEABLE
Face Bow,articulator,dental
Water Pik Inc Dba Waterpik Technologies
5360-01-065-6819 INTERCHANGEABLE
Spring
4730-01-104-4310 INTERCHANGEABLE
Strainer,sediment
5360-01-178-1734 INTERCHANGEABLE
Spring,helical,compression
4820-01-218-330810177-0 INTERCHANGEABLE
Valve,vent
Nikkiso Pumps America, Inc
5325-01-265-72501310595 INTERCHANGEABLE
Ring,retaining
Deutz Corporation
4730-01-344-6856 INTERCHANGEABLE
Strainer,sediment
6520-01-354-632210193 INTERCHANGEABLE
File,pulp Canal,dental
Moyco Industries Inc Union Broach Div
Cross-Reference Index
Part NumberManufacturer
1536 Refrigeration Research, Inc. (USA)
13-1-0595 W1d1 Natick Soldier Center Dba Us Army Ccdc Soldier Center Div Combat Capabilities Development Command - Soldier Center (USA)
Related Parts
5330-00-409-3836INTERCHANGEABLE
PACKING,PREFORMED
15-36
5905-00-795-2012INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND,INDUCT
6520-01-005-2557INTERCHANGEABLE
FACE BOW,ARTICULATOR,DENTAL
008824-000
5360-01-065-6819INTERCHANGEABLE
SPRING
4730-01-104-4310INTERCHANGEABLE
STRAINER,SEDIMENT
5360-01-178-1734INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
4820-01-218-3308INTERCHANGEABLE
VALVE,VENT
10177-0
5325-01-265-7250INTERCHANGEABLE
RING,RETAINING
1310595
4730-01-344-6856INTERCHANGEABLE
STRAINER,SEDIMENT
6520-01-354-6322INTERCHANGEABLE
FILE,PULP CANAL,DENTAL
10193
5310-01-627-5835INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
332/E6376
4940-01-690-4692INTERCHANGEABLE
BLAST CLEANING CABINET
1536

Frequently Asked Questions

What is NSN 6680-01-630-2227?

NSN 6680-01-630-2227 is a Indicator,sight,liquid, manufactured by Refrigeration Research, Inc., classified under FSC 6680 (No Item Name Available). Status: active.

What are the part numbers for NSN 6680-01-630-2227?

NSN 6680-01-630-2227 has 2 cross-referenced part numbers: 1536 (Refrigeration Research, Inc.), 13-1-0595 (W1d1 Natick Soldier Center Dba Us Army Ccdc Soldier Center Div Combat Capabilities Development Command - Soldier Center).

What NSN replaces 6680-01-630-2227?

There are 12 known substitutes for 6680-01-630-2227: 5330-00-409-3836, 5905-00-795-2012, 6520-01-005-2557 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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