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NSN 4820-01-195-3771Government record, cited
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Valve, Ball4820-01-195-3771

NSN 4820-01-195-3771 · NIIN 011953771
FSC 4820 — Valves, Nonpowered · FSG 48 — Valves
Government record, cited
Also searched as  4820-01-195-3771 · 4820011953771 · NIIN 011953771 · 01-195-3771 · FSC 4820 Valves, Nonpowered · 845-4558738 ASSEMBLY HB · 845-4558738 · 2642-785-01 · 2642-785-01 ASSEMBLY HB
Nearby stock numbers  ·
3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS rated GATE VALVE PROFILE
4820-01-195-3771 — Valves, Nonpowered
Features
  • Valve,ball — FSC 4820
  • Connection Style: PLAIN,OPTIONAL END(PIPE) ALL ENDS
  • Connection Type: THREADED INTERNAL PIPE ALL ENDS
  • Style Designator: STRAIGHT THRU
  • Operating Pressure: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
  • Thread Direction: RIGHT-HAND ALL ENDS
  • Nominal Thread Size: 1.500 INCHES ALL ENDS IN
  • Media for Which Designed: HYDRAULIC FLUID, MINERAL BASE SINGLE RESPONSE
Identification
  • NSN: 4820-01-195-3771
  • NIIN: 011953771
  • FSC: 4820 — Valves, Nonpowered
  • FSG: 48 — Valves
General Description

The Valve,ball, cataloged under National Stock Number 4820-01-195-3771, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 12 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 7 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-195-3771
Item NameValve,ball
FSC / FSG4820 / 48 — Valves, Nonpowered
StatusACTIVE
Connection StylePLAIN,OPTIONAL END(PIPE) ALL ENDS
Connection TypeTHREADED INTERNAL PIPE ALL ENDS
Style DesignatorSTRAIGHT THRU
Operating Pressure3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Thread DirectionRIGHT-HAND ALL ENDS
Nominal Thread Size1.500 INCHES ALL ENDS IN
Media for Which DesignedHYDRAULIC FLUID, MINERAL BASE SINGLE RESPONSE
MaterialSTEEL CORROSION RESISTING FLOW CONTROL DEVICE
MaterialSTEEL CORROSION RESISTING BODY
MaterialPLASTIC POLYHEXAMETHYLENE ADIPAMIDE SEAT
Thread Series DesignatorNPT ALL ENDS
Valve Operation MethodMANUAL
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
⇄ Related Items 7
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4820-01-248-3834845-4558738 ASSY RC POSSIBLE MATCH
VALVE,BALL
Possible match (shared part number)Naval Sea Systems Command
4820-01-322-8086845-4558738 ASSY-F POSSIBLE MATCH
VALVE,BALL
Possible match (shared part number)Naval Ship Systems Command
4820-01-345-1446 POSSIBLE MATCH
VALVE,BALL
Possible match (shared part number)
4820-01-495-1852845-4558738 ASSY.G,A-B POSSIBLE MATCH
VALVE,BALL
Possible match (shared part number)Naval Ship Systems Command
4820-01-495-1860845-4558738 ASSY.C,A-B POSSIBLE MATCH
VALVE,BALL
Possible match (shared part number)Naval Ship Systems Command
4820-01-495-1867845-4558738 ASSY.C,A-C POSSIBLE MATCH
VALVE,BALL
Possible match (shared part number)Naval Ship Systems Command
4820-01-495-1873845-4558742 ASSY.A,A-C POSSIBLE MATCH
VALVE,BALL
Possible match (shared part number)Naval Ship Systems Command
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
ReferenceMeaning
845-4558738 ASSEMBLY HB 3/2 Design control — primary reference
U.S. Government activity
845-4558738 D/9 Drawing number reference only
U.S. Government activity
2642-785-01 D/9 Drawing number reference only
U.S. Government activity
2642-785-01 ASSEMBLY HB 3/2 Design control — primary reference
U.S. Government activity
Related Parts
4820-01-248-3834POSSIBLE MATCH
VALVE,BALL
845-4558738 ASSY RC
4820-01-322-8086POSSIBLE MATCH
VALVE,BALL
845-4558738 ASSY-F
4820-01-345-1446POSSIBLE MATCH
VALVE,BALL
4820-01-495-1852POSSIBLE MATCH
VALVE,BALL
845-4558738 ASSY.G,A-B
4820-01-495-1860POSSIBLE MATCH
VALVE,BALL
845-4558738 ASSY.C,A-B
4820-01-495-1867POSSIBLE MATCH
VALVE,BALL
845-4558738 ASSY.C,A-C
4820-01-495-1873POSSIBLE MATCH
VALVE,BALL
845-4558742 ASSY.A,A-C

Frequently Asked Questions

What is NSN 4820-01-195-3771?

NSN 4820-01-195-3771 is a Valve,ball, classified under FSC 4820, Valves, Nonpowered. Status: active.

What NSN replaces 4820-01-195-3771?

7 possible matches (shared part number, not a government interchangeability claim): 4820-01-248-3834, 4820-01-322-8086, 4820-01-345-1446. Verify interchangeability with system specifications before substitution.

What are the specifications of 4820-01-195-3771?

Key specifications for 4820-01-195-3771: Connection Style: PLAIN,OPTIONAL END(PIPE) ALL ENDS; Connection Type: THREADED INTERNAL PIPE ALL ENDS; Style Designator: STRAIGHT THRU; Operating Pressure: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS. 12 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-195-3771 hazardous material?

No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.

Sources

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.

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✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.
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