PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B-1-11Valve,bleeder,hydraulic System

Wesley International Llc Dba Wesley International Corp · NSN 4820-01-507-2555 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-507-2555 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-507-2555. Primary manufacturer part number: B-1-11.
Features
  • Valve,bleeder,hydraulic System — FSC 4820
  • 1 verified cross-reference
  • Primary manufacturer: Wesley International Llc Dba Wesley International Corp
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,bleeder,hydraulic System, cataloged under National Stock Number 4820-01-507-2555, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Wesley International Llc Dba Wesley International Corp. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-507-2555
Primary Part NumberB-1-11
Item NameValve,bleeder,hydraulic System
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerWesley International Llc Dba Wesley International Corp
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5905-00-283-4407 INTERCHANGEABLE
Resistor,fixed,wire Wound
5905-00-283-4409 INTERCHANGEABLE
Resistor,fixed,wire Wound
8455-00-292-9572 INTERCHANGEABLE
Stripe,service
3120-00-879-8983B11-1 INTERCHANGEABLE
Bearing,sleeve
Roller Bearing Co of America, Inc Div Pic Design
4510-01-198-4342B-0111 INTERCHANGEABLE
Prerinse Spray Assembly
T and S Brass and Bronze Works Inc
7830-01-457-9095B111 INTERCHANGEABLE
Bench Press Olympic
Body Masters Supports Industry Inc
5360-01-468-8826B1-11 INTERCHANGEABLE
Spring,helical,compression
Matthew Warren, Inc. Dba Century Spring Corp. Div Century Spring Corp.
8455-01-524-1931 INTERCHANGEABLE
Stripe,service
8455-01-524-2323 INTERCHANGEABLE
Stripe,service
Cross-Reference Index
Part NumberManufacturer
B-1-11 PRIMARY Wesley International Llc Dba Wesley International Corp (USA)
Related Parts
5905-00-283-4407INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND
5905-00-283-4409INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND
8455-00-292-9572INTERCHANGEABLE
STRIPE,SERVICE
3120-00-879-8983INTERCHANGEABLE
BEARING,SLEEVE
B11-1
4510-01-198-4342INTERCHANGEABLE
PRERINSE SPRAY ASSEMBLY
B-0111
7830-01-457-9095INTERCHANGEABLE
BENCH PRESS OLYMPIC
B111
5360-01-468-8826INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
B1-11
8455-01-524-1931INTERCHANGEABLE
STRIPE,SERVICE
8455-01-524-2323INTERCHANGEABLE
STRIPE,SERVICE

Frequently Asked Questions

What is NSN 4820-01-507-2555?

NSN 4820-01-507-2555 is a Valve,bleeder,hydraulic System, manufactured by Wesley International Llc Dba Wesley International Corp, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-507-2555?

NSN 4820-01-507-2555 has 1 cross-referenced part number: B-1-11 (Wesley International Llc Dba Wesley International Corp).

What NSN replaces 4820-01-507-2555?

There are 9 known substitutes for 4820-01-507-2555: 5905-00-283-4407, 5905-00-283-4409, 8455-00-292-9572 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of B-1-11?

Key specifications for B-1-11: Special Features: NHA PALLET TRUCK. 1 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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