PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5677Valve,vent

Mcneil Ohio Corp · NSN 4820-00-986-4248 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-986-4248 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-986-4248. Primary manufacturer part number: 5677.
Features
  • Valve,vent — FSC 4820
  • Style Designator: STRAIGHT THRU
  • Surface Treatment: DICHROMATE OR CHROMATE ZINC
  • Connection Type: THREADED EXTERNAL PIPE FIRST END
  • Nominal Thread Size: 0.125 INCHES FIRST END IN
  • Media for Which Designed: AIR SECOND RESPONSE
  • Thread Direction: RIGHT-HAND FIRST END
  • Material: STEEL OVERALL
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Overall construction
General Description

The Valve,vent, cataloged under National Stock Number 4820-00-986-4248, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Mcneil Ohio Corp. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 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
NSN4820-00-986-4248
Primary Part Number5677
Item NameValve,vent
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerMcneil Ohio Corp
StatusCANCELLED
Style DesignatorSTRAIGHT THRU
Surface TreatmentDICHROMATE OR CHROMATE ZINC
Connection TypeTHREADED EXTERNAL PIPE FIRST END
Nominal Thread Size0.125 INCHES FIRST END IN
Media for Which DesignedAIR SECOND RESPONSE
Thread DirectionRIGHT-HAND FIRST END
MaterialSTEEL OVERALL
Thread Series DesignatorPTF-SAE SHORT FIRST END
Connection StylePLAIN (PIPE) FIRST END
Media for Which DesignedOXYGEN, GASEOUS FIRST RESPONSE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5940-00-087-4177978016-3 INTERCHANGEABLE
Terminal,feedthru
Raytheon Company Dba Raytheon
3110-00-155-9143 INTERCHANGEABLE
Bearing,ball,thrust
5342-00-200-75770124-13 INTERCHANGEABLE
Mount,resilient,weapon System
Lockheed Martin Corporation Div Rms - Mitchel Field
5310-00-209-384510074 INTERCHANGEABLE
Washer,flat
Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney
5133-00-228-135914810 INTERCHANGEABLE
Drill,twist
Viking Drill & Tool, Inc.
7520-00-269-90127520-00-269-9012 INTERCHANGEABLE
Stencil Set,marking
National Industries for the Blind
3455-00-277-6668 INTERCHANGEABLE
Blade,band Saw,metal Cutting
2530-00-278-225210074 INTERCHANGEABLE
Wheel Assembly,pneumatic Tire
Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp.
5360-00-318-6622MZ19A INTERCHANGEABLE
Spring,spiral,torsion
Prestolite Electric Inc
2805-00-374-4173 INTERCHANGEABLE
Retainer,valve Spri
Cross-Reference Index
Part NumberManufacturer
10074 Paccar Winch Inc Dba Paccar Winch Division (USA)
10560344 General Dynamics Land Systems Canadacorp (CAN)
5677 PRIMARY Mcneil Ohio Corp (USA)
Related Parts
5940-00-087-4177INTERCHANGEABLE
TERMINAL,FEEDTHRU
978016-3
3110-00-155-9143INTERCHANGEABLE
BEARING,BALL,THRUST
5342-00-200-7577INTERCHANGEABLE
MOUNT,RESILIENT,WEAPON SYSTEM
0124-13
5310-00-209-3845INTERCHANGEABLE
WASHER,FLAT
10074
5133-00-228-1359INTERCHANGEABLE
DRILL,TWIST
14810
7520-00-269-9012INTERCHANGEABLE
STENCIL SET,MARKING
7520-00-269-9012
3455-00-277-6668INTERCHANGEABLE
BLADE,BAND SAW,METAL CUTTING
2530-00-278-2252INTERCHANGEABLE
WHEEL ASSEMBLY,PNEUMATIC TIRE
10074
5360-00-318-6622INTERCHANGEABLE
SPRING,SPIRAL,TORSION
MZ19A
2805-00-374-4173INTERCHANGEABLE
RETAINER,VALVE SPRI
5315-00-465-2453INTERCHANGEABLE
PIN
5677
5360-00-514-2853INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
10074

Frequently Asked Questions

What is NSN 4820-00-986-4248?

NSN 4820-00-986-4248 is a Valve,vent, manufactured by Mcneil Ohio Corp, classified under FSC 4820 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4820-00-986-4248?

NSN 4820-00-986-4248 has 3 cross-referenced part numbers: 10074 (Paccar Winch Inc Dba Paccar Winch Division), 10560344 (General Dynamics Land Systems Canadacorp), 5677 (Mcneil Ohio Corp).

What NSN replaces 4820-00-986-4248?

There are 12 known substitutes for 4820-00-986-4248: 5940-00-087-4177, 3110-00-155-9143, 5342-00-200-7577 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 5677?

Key specifications for 5677: Style Designator: STRAIGHT THRU; Surface Treatment: DICHROMATE OR CHROMATE ZINC; Connection Type: THREADED EXTERNAL PIPE FIRST END; Nominal Thread Size: 0.125 INCHES FIRST END IN. 11 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-00-986-4248 still in active supply?

NSN 4820-00-986-4248 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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