PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

7-3/4Valve,float

O. C. Keckley Company · NSN 4820-00-287-4670 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-287-4670 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-287-4670. Primary manufacturer part number: 7-3/4.
Features
  • Valve,float — FSC 4820
  • Thread Series Designator: NPT ALL ENDS
  • Material: COPPER ALLOY STEM
  • Media for Which Designed: WATER, FRESH FIRST RESPONSE
  • Nominal Thread Size: 0.750 INCHES ALL ENDS IN
  • Style Designator: ANGLE
  • Bonnet Attachment Method: INTEGRAL
  • Connection Style: PLAIN,OPTIONAL END(PIPE) ALL ENDS
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Copper Alloy Stem construction
General Description

The Valve,float, cataloged under National Stock Number 4820-00-287-4670, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is O. C. Keckley Company. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 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
NSN4820-00-287-4670
Primary Part Number7-3/4
Item NameValve,float
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerO. C. Keckley Company
StatusACTIVE
Thread Series DesignatorNPT ALL ENDS
MaterialCOPPER ALLOY STEM
Media for Which DesignedWATER, FRESH FIRST RESPONSE
Nominal Thread Size0.750 INCHES ALL ENDS IN
Style DesignatorANGLE
Bonnet Attachment MethodINTEGRAL
Connection StylePLAIN,OPTIONAL END(PIPE) ALL ENDS
MaterialCOPPER ALLOY AND RUBBER SYNTHETIC FLOW CONTROL DEVICE
Connection TypeTHREADED INTERNAL PIPE ALL ENDS
Thread DirectionRIGHT-HAND ALL ENDS
MaterialCOPPER ALLOY BODY
Flow Control DeviceDISK
Features ProvidedBONNET PACKING
Valve Operation MethodHYDRAULIC
Nominal Pipe Size Accommodated0.750 INCHES ALL ENDS IN
Operating Pressure100.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Thread Quantity Per Inch14 ALL ENDS
MaterialCOPPER ALLOY SEAT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5305-00-017-9841 INTERCHANGEABLE
Screw,cap,hexagon Head
5120-00-293-079912Z713PC105 INTERCHANGEABLE
Wrench,spanner
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
6515-00-319-930040-2923 INTERCHANGEABLE
Clamp,bone and Plate Holding
Sklar Corporation Dba Sklar Instruments
5330-00-599-133214021 INTERCHANGEABLE
Gasket
Dana Automotive Systems Group, Llc Dba Dana Sealing Products
5330-00-640-9476 INTERCHANGEABLE
Packing,preformed
5935-00-683-240410051544 INTERCHANGEABLE
Connector,plug,electrical
Us Army Aviation and Missile Command
4820-00-756-55362734 INTERCHANGEABLE
Disk,valve
Lawler Manufacturing Company, Inc.
4820-00-855-39231212462 INTERCHANGEABLE
Valve,lift-Check
Pneumatic Products Corp
5950-01-129-11862734 INTERCHANGEABLE
Transformer
Avo Multi-Amp Corp
6660-01-143-19382734 INTERCHANGEABLE
Mode Selector
Gifft T H Co Inc
Cross-Reference Index
Part NumberManufacturer
27-3/4 O. C. Keckley Company (USA)
27 3-4 O. C. Keckley Company (USA)
7-3/4 PRIMARY O. C. Keckley Company (USA)
Related Parts
5305-00-017-9841INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
5120-00-293-0799INTERCHANGEABLE
WRENCH,SPANNER
12Z713PC105
6515-00-319-9300INTERCHANGEABLE
CLAMP,BONE AND PLATE HOLDING
40-2923
5330-00-599-1332INTERCHANGEABLE
GASKET
14021
5330-00-640-9476INTERCHANGEABLE
PACKING,PREFORMED
5935-00-683-2404INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
10051544
4820-00-756-5536INTERCHANGEABLE
DISK,VALVE
2734
4820-00-855-3923INTERCHANGEABLE
VALVE,LIFT-CHECK
1212462
5950-01-129-1186INTERCHANGEABLE
TRANSFORMER
2734
6660-01-143-1938INTERCHANGEABLE
MODE SELECTOR
2734
5905-01-146-0354INTERCHANGEABLE
RESISTOR,FIXED,FILM
12-12117-0A
5130-01-159-0342INTERCHANGEABLE
BIT,SCREWDRIVER
273-4

Frequently Asked Questions

What is NSN 4820-00-287-4670?

NSN 4820-00-287-4670 is a Valve,float, manufactured by O. C. Keckley Company, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-287-4670?

NSN 4820-00-287-4670 has 3 cross-referenced part numbers: 27-3/4 (O. C. Keckley Company), 27 3-4 (O. C. Keckley Company), 7-3/4 (O. C. Keckley Company).

What NSN replaces 4820-00-287-4670?

There are 12 known substitutes for 4820-00-287-4670: 5305-00-017-9841, 5120-00-293-0799, 6515-00-319-9300 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 7-3/4?

Key specifications for 7-3/4: Thread Series Designator: NPT ALL ENDS; Material: COPPER ALLOY STEM; Media for Which Designed: WATER, FRESH FIRST RESPONSE; Nominal Thread Size: 0.750 INCHES ALL ENDS IN. 18 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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