PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

103KDCock,shutoff,screw Stem

Couplings Co Inc · NSN 4820-00-918-2491 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-918-2491 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-918-2491. Primary manufacturer part number: 103KD.
Features
  • Cock,shutoff,screw Stem — FSC 4820
  • Material: COPPER ALLOY BODY
  • Thread Series Designator: NPT FIRST END
  • Connection Type: UNTHREADED INTERNAL TUBE SECOND END
  • Style Designator: ANGLE
  • Connection Style: PLAIN (PIPE) FIRST END
  • Nominal Thread Size: 0.125 INCHES FIRST END IN
  • Thread Direction: RIGHT-HAND FIRST END
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Copper Alloy Body construction
General Description

The Cock,shutoff,screw Stem, cataloged under National Stock Number 4820-00-918-2491, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Couplings Co Inc. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 20 commercial cross-references from 15 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4820-00-918-2491
Primary Part Number103KD
Item NameCock,shutoff,screw Stem
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerCouplings Co Inc
StatusCANCELLED
MaterialCOPPER ALLOY BODY
Thread Series DesignatorNPT FIRST END
Connection TypeUNTHREADED INTERNAL TUBE SECOND END
Style DesignatorANGLE
Connection StylePLAIN (PIPE) FIRST END
Nominal Thread Size0.125 INCHES FIRST END IN
Thread DirectionRIGHT-HAND FIRST END
Connection StylePLAIN (TUBE) SECOND END
Nominal Outside Diameter Tube Accommodated0.125 INCHES SECOND END IN
Connection TypeTHREADED EXTERNAL PIPE FIRST END
Flow Control DeviceCONE
Valve Operation MethodMANUAL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
6680-00-060-710232121 INTERCHANGEABLE
Tachometer,mechanical,fixed Moun
Napco International Llc Dba Napco International Inc
3110-00-108-9247 INTERCHANGEABLE
Bearing,ball,annular
5815-00-125-516977033 INTERCHANGEABLE
Guide
Telemechanics Inc
5961-00-271-4833PD327 INTERCHANGEABLE
Semiconductor Device,diode
Chief of Engineers Dept of Army
1680-00-288-4376 INTERCHANGEABLE
Strap,webbing
5315-00-457-0447SQAP7347715 INTERCHANGEABLE
Pin,straight,headless
U S Army Tank Automotive Command Amsta-Im-Mm
3030-00-528-0921B50-2 INTERCHANGEABLE
Belts,v,matched Set
Muviq Usa, Llc
4820-00-606-6320A14822 INTERCHANGEABLE
Valve,globe
Mueller Brass Co.
2910-00-624-76356247635 INTERCHANGEABLE
Reservoir Assembly
U S Army Tank Automotive Command Amsta-Im-Mm
5340-00-737-10457371045 INTERCHANGEABLE
Clamp,loop
U S Army Tank Automotive Command Amsta-Im-Mm
Cross-Reference Index
Part NumberManufacturer
103KD PRIMARY Couplings Co Inc (USA)
613376 Clark Equipment Co (USA)
D77033 Komatsu America Corporation (USA)
613376 Dana Off Highway Products, Llc (USA)
B5-203 Stant Corp Edelmann Div (USA)
PTA655 PRIMARY Danfoss Power Solutions II, Llc (USA)
592792 U S Army Tank Automotive Command Amsta-Im-Mm (USA)
B502 Parker-Hannifin Corp Div Fluid System Connector Division (USA)
A655 Dana Corp Weatherhead Div (USA)
32121 Colson Corp the (USA)
203EF Imperial (USA)
PTA655 Dana Corp Weatherhead Div (USA)
77033 Komatsu America Corporation (USA)
77033 PRIMARY Dressta North America Ltd (USA)
98 PRIMARY Lincoln Brass Works Inc (USA)
A655 Danfoss Power Solutions II, Llc (USA)
31763 Taylor-Dunn Corporation Dba Metro Crown International (USA)
NV 104C-5-2 Parker-Hannifin Corp Div Fluid System Connector Division (USA)
NV104C-5-2 PRIMARY Couplings Co Inc (USA)
2203X5 PRIMARY Essex Brownell Inc. Div Essex Group Inc (USA)
Related Parts
6680-00-060-7102INTERCHANGEABLE
TACHOMETER,MECHANICAL,FIXED MOUN
32121
3110-00-108-9247INTERCHANGEABLE
BEARING,BALL,ANNULAR
5815-00-125-5169INTERCHANGEABLE
GUIDE
77033
5961-00-271-4833INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
PD327
1680-00-288-4376INTERCHANGEABLE
STRAP,WEBBING
5315-00-457-0447INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
SQAP7347715
3030-00-528-0921INTERCHANGEABLE
BELTS,V,MATCHED SET
B50-2
4820-00-606-6320INTERCHANGEABLE
VALVE,GLOBE
A14822
2910-00-624-7635INTERCHANGEABLE
RESERVOIR ASSEMBLY
6247635
5340-00-737-1045INTERCHANGEABLE
CLAMP,LOOP
7371045
4920-01-023-4012INTERCHANGEABLE
BLANKET,COVER,HEATER
5962-01-071-4227INTERCHANGEABLE
MICROCIRCUIT,LINEAR

Frequently Asked Questions

What is NSN 4820-00-918-2491?

NSN 4820-00-918-2491 is a Cock,shutoff,screw Stem, manufactured by Couplings Co Inc, classified under FSC 4820 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4820-00-918-2491?

NSN 4820-00-918-2491 has 20 cross-referenced part numbers: 103KD (Couplings Co Inc), 613376 (Clark Equipment Co), D77033 (Komatsu America Corporation), 613376 (Dana Off Highway Products, Llc), B5-203 (Stant Corp Edelmann Div) and 15 more.

What NSN replaces 4820-00-918-2491?

There are 12 known substitutes for 4820-00-918-2491: 6680-00-060-7102, 3110-00-108-9247, 5815-00-125-5169 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 103KD?

Key specifications for 103KD: Material: COPPER ALLOY BODY; Thread Series Designator: NPT FIRST END; Connection Type: UNTHREADED INTERNAL TUBE SECOND END; Style Designator: ANGLE. 13 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-00-918-2491 still in active supply?

NSN 4820-00-918-2491 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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