PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

37131Tail,deboost Brake Valve Piston

Parker-Hannifin Corporation Dba Control Systems Division · NSN 1630-01-034-8603 · FSC 1630 · No Item Name Available
Verified by PartsTable
NSN 1630-01-034-8603 — this item is cataloged by the U.S. Government under National Stock Number 1630-01-034-8603. Primary manufacturer part number: 37131.
Features
  • Tail,deboost Brake Valve Piston — FSC 1630
  • Criticality Code Justification: FEAT
  • General Characteristics Item Description: 431 CRES BAR,MIL-S-18732
  • 1 verified cross-reference
  • Primary manufacturer: Parker-Hannifin Corporation Dba Control Systems Division
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Tail,deboost Brake Valve Piston, cataloged under National Stock Number 1630-01-034-8603, is classified within Federal Supply Class 1630 (No Item Name Available) of the Aircraft Components and Accessories group. The primary manufacturer of record is Parker-Hannifin Corporation Dba Control Systems Division. Government technical data includes 2 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN1630-01-034-8603
Primary Part Number37131
Item NameTail,deboost Brake Valve Piston
FSC / FSG1630 / 16 — No Item Name Available
ManufacturerParker-Hannifin Corporation Dba Control Systems Division
StatusACTIVE
Criticality Code JustificationFEAT
General Characteristics Item Description431 CRES BAR,MIL-S-18732
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
6685-00-166-7131371-31 INTERCHANGEABLE
Plate,top Bearing
Elbitamerica, Inc.
3110-00-227-4911334799PC108 INTERCHANGEABLE
Bearing,roller,radial and Thrust
Naval Ship Systems Command
5915-01-199-12023713-1 INTERCHANGEABLE
Filter,radio Frequency Interfere
Video Display Corporation
Cross-Reference Index
Part NumberManufacturer
37131 PRIMARY Parker-Hannifin Corporation Dba Control Systems Division (USA)
Related Parts
6685-00-166-7131INTERCHANGEABLE
PLATE,TOP BEARING
371-31
3110-00-227-4911INTERCHANGEABLE
BEARING,ROLLER,RADIAL AND THRUST
334799PC108
5915-01-199-1202INTERCHANGEABLE
FILTER,RADIO FREQUENCY INTERFERE
3713-1

Frequently Asked Questions

What is NSN 1630-01-034-8603?

NSN 1630-01-034-8603 is a Tail,deboost Brake Valve Piston, manufactured by Parker-Hannifin Corporation Dba Control Systems Division, classified under FSC 1630 (No Item Name Available). Status: active.

What are the part numbers for NSN 1630-01-034-8603?

NSN 1630-01-034-8603 has 1 cross-referenced part number: 37131 (Parker-Hannifin Corporation Dba Control Systems Division).

What NSN replaces 1630-01-034-8603?

There are 3 known substitutes for 1630-01-034-8603: 6685-00-166-7131, 3110-00-227-4911, 5915-01-199-1202. Verify interchangeability with system specifications before substitution.

What are the specifications of 37131?

Key specifications for 37131: End Item Identification: FORE-3A A; Criticality Code Justification: FEAT; General Characteristics Item Description: 431 CRES BAR,MIL-S-18732; Special Features: ITEM IS LANDING GEAR SPECIFIC AND HAS DIMENSIONAL AND DESIGN CHARACTERIS. 4 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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