PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

137538Valve Assembly

Fleet Readiness Center Southwest · NSN 4810-01-522-2275 · FSC 4810 · No Item Name Available
Verified by PartsTable
NSN 4810-01-522-2275 — this item is cataloged by the U.S. Government under National Stock Number 4810-01-522-2275. Primary manufacturer part number: 137538.
Features
  • Valve Assembly — FSC 4810
  • Criticality Code Justification: AGAV
  • 4 verified cross-references
  • Primary manufacturer: Fleet Readiness Center Southwest
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve Assembly, cataloged under National Stock Number 4810-01-522-2275, is classified within Federal Supply Class 4810 (No Item Name Available) of the Valves group. The primary manufacturer of record is Fleet Readiness Center Southwest. Government technical data includes 1 verified specification, 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4810-01-522-2275
Primary Part Number137538
Item NameValve Assembly
FSC / FSG4810 / 48 — No Item Name Available
ManufacturerFleet Readiness Center Southwest
StatusACTIVE
Criticality Code JustificationAGAV
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5305-00-206-6232137538 INTERCHANGEABLE
Screw,machine
Lockheed Martin Corporation Div Rms - Mitchel Field
4730-00-277-55424101-040 INTERCHANGEABLE
Elbow,pipe
Flagg Stanley G & Co Inc Dba Flagg Brass
9330-01-266-13991375-3/8 INTERCHANGEABLE
Molding,plastic
Trim-Lok Inc Dba Trim-Lok Inc
Cross-Reference Index
Part NumberManufacturer
137538 Greene Tweed & Co Inc (USA)
137538 Trelleborg Sealing Solutions Us, Inc. (USA)
137538 The Boeing Company Div Services (USA)
137538 PRIMARY Fleet Readiness Center Southwest (USA)
Related Parts
5305-00-206-6232INTERCHANGEABLE
SCREW,MACHINE
137538
4730-00-277-5542INTERCHANGEABLE
ELBOW,PIPE
4101-040
9330-01-266-1399INTERCHANGEABLE
MOLDING,PLASTIC
1375-3/8

Frequently Asked Questions

What is NSN 4810-01-522-2275?

NSN 4810-01-522-2275 is a Valve Assembly, manufactured by Fleet Readiness Center Southwest, classified under FSC 4810 (No Item Name Available). Status: active.

What are the part numbers for NSN 4810-01-522-2275?

NSN 4810-01-522-2275 has 4 cross-referenced part numbers: 137538 (Greene Tweed & Co Inc), 137538 (Trelleborg Sealing Solutions Us, Inc.), 137538 (The Boeing Company Div Services), 137538 (Fleet Readiness Center Southwest).

What NSN replaces 4810-01-522-2275?

There are 3 known substitutes for 4810-01-522-2275: 5305-00-206-6232, 4730-00-277-5542, 9330-01-266-1399. Verify interchangeability with system specifications before substitution.

What are the specifications of 137538?

Key specifications for 137538: End Item Identification: MARINE RESERVE CONFIGURATION OF THE F/A-18A+ A; Criticality Code Justification: AGAV. 2 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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