PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

6783Cock,drain

Amfs American Fleet Services · NSN 4820-01-068-1721 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-068-1721 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-068-1721. Primary manufacturer part number: 6783.
Features
  • Cock,drain — FSC 4820
  • Connection Style: PLAIN (PIPE) ALL ENDS
  • Thread Direction: RIGHT-HAND ALL ENDS
  • Thread Series Designator: NPT ALL ENDS
  • Style Designator: STRAIGHT THRU
  • Connection Type: THREADED EXTERNAL PIPE ALL ENDS
  • Nominal Thread Size: 0.125 INCHES ALL ENDS IN
  • Flow Control Device: STEM
Applications
  • Applications requiring Copper Alloy Overall construction
General Description

The Cock,drain, cataloged under National Stock Number 4820-01-068-1721, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Amfs American Fleet Services. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference 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
NSN4820-01-068-1721
Primary Part Number6783
Item NameCock,drain
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerAmfs American Fleet Services
StatusACTIVE
Connection StylePLAIN (PIPE) ALL ENDS
Thread DirectionRIGHT-HAND ALL ENDS
Thread Series DesignatorNPT ALL ENDS
Style DesignatorSTRAIGHT THRU
Connection TypeTHREADED EXTERNAL PIPE ALL ENDS
Nominal Thread Size0.125 INCHES ALL ENDS IN
Flow Control DeviceSTEM
Valve Operation MethodMANUAL
MaterialCOPPER ALLOY OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5940-00-237-679812TM315 INTERCHANGEABLE
Post,binding,electrical
Eby Group, Llc, the Dba Eby Company Div Eby Company
4820-01-065-18551026735 INTERCHANGEABLE
Cock,drain
Electromechanical Systems, Inc.
6210-01-069-23256783 INTERCHANGEABLE
Knob Assembly
Cooper Bussmann, Llc Dba Cooper Industries
5120-01-233-8310 INTERCHANGEABLE
Remover,electrical Contact
7430-01-302-8005SUPERSELECTRIC 35 INTERCHANGEABLE
Typewriter
International Business Machines Corp Parts Order Center Dept E - 54
4240-01-343-2220520600 INTERCHANGEABLE
Powered-Air Purifying
Honeywell Safety Products Usa, Inc.
5365-01-621-01626783 INTERCHANGEABLE
Ring,connecting,round
Wichard, Inc. Dba Wichard Inc
Cross-Reference Index
Part NumberManufacturer
6783 PRIMARY Amfs American Fleet Services (USA)
Related Parts
5940-00-237-6798INTERCHANGEABLE
POST,BINDING,ELECTRICAL
12TM315
4820-01-065-1855INTERCHANGEABLE
COCK,DRAIN
1026735
6210-01-069-2325INTERCHANGEABLE
KNOB ASSEMBLY
6783
5120-01-233-8310INTERCHANGEABLE
REMOVER,ELECTRICAL CONTACT
7430-01-302-8005INTERCHANGEABLE
TYPEWRITER
SUPERSELECTRIC 35
4240-01-343-2220INTERCHANGEABLE
POWERED-AIR PURIFYING
520600
5365-01-621-0162INTERCHANGEABLE
RING,CONNECTING,ROUND
6783

Frequently Asked Questions

What is NSN 4820-01-068-1721?

NSN 4820-01-068-1721 is a Cock,drain, manufactured by Amfs American Fleet Services, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-068-1721?

NSN 4820-01-068-1721 has 1 cross-referenced part number: 6783 (Amfs American Fleet Services).

What NSN replaces 4820-01-068-1721?

There are 7 known substitutes for 4820-01-068-1721: 5940-00-237-6798, 4820-01-065-1855, 6210-01-069-2325 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 6783?

Key specifications for 6783: Connection Style: PLAIN (PIPE) ALL ENDS; Thread Direction: RIGHT-HAND ALL ENDS; Thread Series Designator: NPT ALL ENDS; Style Designator: STRAIGHT THRU. 10 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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