PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A1530Seat,valve

P J Valves Inc · NSN 4820-00-475-3888 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-475-3888 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-475-3888. Primary manufacturer part number: A1530.
Features
  • Seat,valve — FSC 4820
  • Seating Surface Shape: ANGULAR
  • Material: PLASTIC PHENOLIC OVERALL
  • Seat Angle in Deg: 38.000 NOMINAL
  • Body Inside Diameter: 0.600 INCHES NOMINAL IN
  • Body Outside Diameter: 0.875 INCHES NOMINAL IN
  • Style Designator: PLAIN
  • 1 verified cross-reference
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Plastic Phenolic Overall construction
General Description

The Seat,valve, cataloged under National Stock Number 4820-00-475-3888, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is P J Valves Inc. Government technical data includes 6 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. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-475-3888
Primary Part NumberA1530
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerP J Valves Inc
StatusACTIVE
Seating Surface ShapeANGULAR
MaterialPLASTIC PHENOLIC OVERALL
Seat Angle in Deg38.000 NOMINAL
Body Inside Diameter0.600 INCHES NOMINAL IN
Body Outside Diameter0.875 INCHES NOMINAL IN
Style DesignatorPLAIN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
4820-00-155-56722C9640 INTERCHANGEABLE
Valve,check
Crissair Inc Div Esco Technologies
6230-00-170-7842A1530 INTERCHANGEABLE
Guard,lamp
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
1680-00-180-461814-01530-00 INTERCHANGEABLE
Seal,push Rod
Curtiss-Wright Controls, Inc. Div Actuation Division
8455-00-408-2801 INTERCHANGEABLE
Insignia,shoulder Sleeve
8455-00-408-2802 INTERCHANGEABLE
Insignia,shoulder Sleeve
6230-00-498-9408 INTERCHANGEABLE
Lantern,electric
5915-00-993-2969P7410316P1 INTERCHANGEABLE
Filter,radio Frequency Interfere
Lockheed Martin Corporation Div Rms
8455-01-528-9216 INTERCHANGEABLE
Insignia,shoulder Sleeve
8455-01-654-1673 INTERCHANGEABLE
Insignia,shoulder Sleeve
8455-01-715-0314 INTERCHANGEABLE
Insignia,shoulder Sleeve
Cross-Reference Index
Part NumberManufacturer
A1530 P J Valves Inc (USA)
Related Parts
4820-00-155-5672INTERCHANGEABLE
VALVE,CHECK
2C9640
6230-00-170-7842INTERCHANGEABLE
GUARD,LAMP
A1530
1680-00-180-4618INTERCHANGEABLE
SEAL,PUSH ROD
14-01530-00
8455-00-408-2801INTERCHANGEABLE
INSIGNIA,SHOULDER SLEEVE
8455-00-408-2802INTERCHANGEABLE
INSIGNIA,SHOULDER SLEEVE
6230-00-498-9408INTERCHANGEABLE
LANTERN,ELECTRIC
5915-00-993-2969INTERCHANGEABLE
FILTER,RADIO FREQUENCY INTERFERE
P7410316P1
8455-01-528-9216INTERCHANGEABLE
INSIGNIA,SHOULDER SLEEVE
8455-01-654-1673INTERCHANGEABLE
INSIGNIA,SHOULDER SLEEVE
8455-01-715-0314INTERCHANGEABLE
INSIGNIA,SHOULDER SLEEVE

Frequently Asked Questions

What is NSN 4820-00-475-3888?

NSN 4820-00-475-3888 is a Seat,valve, manufactured by P J Valves Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-475-3888?

NSN 4820-00-475-3888 has 1 cross-referenced part number: A1530 (P J Valves Inc).

What NSN replaces 4820-00-475-3888?

There are 10 known substitutes for 4820-00-475-3888: 4820-00-155-5672, 6230-00-170-7842, 1680-00-180-4618 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A1530?

Key specifications for A1530: Seating Surface Shape: ANGULAR; Material: PLASTIC PHENOLIC OVERALL; Seat Angle in Deg: 38.000 NOMINAL; Body Inside Diameter: 0.600 INCHES NOMINAL IN. 7 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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