PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

103647Cock,drain

Nd Defense Llc · NSN 4820-01-512-5961 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-512-5961 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-512-5961. Primary manufacturer part number: 103647.
Features
  • Cock,drain — FSC 4820
  • Material: COPPER ALLOY OVERALL
  • Style Designator: STRAIGHT THRU
  • Furnished Items and Quantity: 1 HANDLE
  • Valve Operation Method: MANUAL
  • Connection Type: THREADED EXTERNAL PIPE ALL ENDS
  • Flow Control Device: STEM
  • Thread Direction: RIGHT-HAND ALL ENDS
Applications
  • Applications requiring Copper Alloy Overall construction
General Description

The Cock,drain, cataloged under National Stock Number 4820-01-512-5961, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Nd Defense Llc. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4820-01-512-5961
Primary Part Number103647
Item NameCock,drain
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerNd Defense Llc
StatusCANCELLED
MaterialCOPPER ALLOY OVERALL
Style DesignatorSTRAIGHT THRU
Furnished Items and Quantity1 HANDLE
Valve Operation MethodMANUAL
Connection TypeTHREADED EXTERNAL PIPE ALL ENDS
Flow Control DeviceSTEM
Thread DirectionRIGHT-HAND ALL ENDS
Thread Series DesignatorPTF-SPL SHORT ALL ENDS
Connection StyleBEVELED (PIPE) ALL ENDS
Nominal Thread Size0.250 INCHES ALL ENDS IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 7
6610-00-101-9925103647 INTERCHANGEABLE
Plate,lamp Support
Astronautics Corporation of America
5330-00-311-73492260064 INTERCHANGEABLE
Gasket
Concentric Rockford Inc
5961-00-577-6218103647 INTERCHANGEABLE
Semiconductor Device,diode
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
4820-00-845-1096 INTERCHANGEABLE
Cock,drain
4820-01-132-63178924140 INTERCHANGEABLE
Cock,drain
Detroit Diesel Corporation
4820-01-226-32530103647 INTERCHANGEABLE
Cock,drain
Caterpillar Inc Div Caterpillar Defense
5640-01-652-5534103647 INTERCHANGEABLE
Insulation Blanket,thermal
Saab Barracuda Llc
Cross-Reference Index
Part NumberManufacturer
103647 Navistar Intl Corp Truck Br Ohio Plant (USA)
103647 PRIMARY Nd Defense Llc (USA)
103647 Asf Logistics, Llc (USA)
103647 Anixter (USA)
Related Parts
6610-00-101-9925INTERCHANGEABLE
PLATE,LAMP SUPPORT
103647
5330-00-311-7349INTERCHANGEABLE
GASKET
2260064
5961-00-577-6218INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
103647
4820-00-845-1096INTERCHANGEABLE
COCK,DRAIN
4820-01-132-6317INTERCHANGEABLE
COCK,DRAIN
8924140
4820-01-226-3253INTERCHANGEABLE
COCK,DRAIN
0103647
5640-01-652-5534INTERCHANGEABLE
INSULATION BLANKET,THERMAL
103647

Frequently Asked Questions

What is NSN 4820-01-512-5961?

NSN 4820-01-512-5961 is a Cock,drain, manufactured by Nd Defense Llc, classified under FSC 4820 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4820-01-512-5961?

NSN 4820-01-512-5961 has 4 cross-referenced part numbers: 103647 (Navistar Intl Corp Truck Br Ohio Plant), 103647 (Nd Defense Llc), 103647 (Asf Logistics, Llc), 103647 (Anixter).

What NSN replaces 4820-01-512-5961?

There are 7 known substitutes for 4820-01-512-5961: 6610-00-101-9925, 5330-00-311-7349, 5961-00-577-6218 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 103647?

Key specifications for 103647: Material: COPPER ALLOY OVERALL; End Item Identification: 3830015042618; MRAP MAXXPRO; Style Designator: STRAIGHT THRU; Furnished Items and Quantity: 1 HANDLE. 13 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-01-512-5961 still in active supply?

NSN 4820-01-512-5961 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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