PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

140380Valve,protecting,multicircuit Ai

Sealco Air Controls Inc · NSN 2530-01-654-0057 · FSC 2530 · No Item Name Available
Verified by PartsTable
NSN 2530-01-654-0057 — this item is cataloged by the U.S. Government under National Stock Number 2530-01-654-0057. Primary manufacturer part number: 140380.
Features
  • Valve,protecting,multicircuit Ai — FSC 2530
  • Supplementary Features: PORT SIZE(NPT)INLET AND OUTLET 0.250 INCH; NOMINAL CLOSING PRESSURE: 70 PSI IN
  • 2 verified cross-references
  • Primary manufacturer: Sealco Air Controls Inc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,protecting,multicircuit Ai, cataloged under National Stock Number 2530-01-654-0057, is classified within Federal Supply Class 2530 (No Item Name Available) of the Vehicular Equipment Components group. The primary manufacturer of record is Sealco Air Controls Inc. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2530-01-654-0057
Primary Part Number140380
Item NameValve,protecting,multicircuit Ai
FSC / FSG2530 / 25 — No Item Name Available
ManufacturerSealco Air Controls Inc
StatusACTIVE
Supplementary FeaturesPORT SIZE(NPT)INLET AND OUTLET 0.250 INCH; NOMINAL CLOSING PRESSURE: 70 PSI IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5310-00-034-2824 INTERCHANGEABLE
Nut
5330-00-418-67951218-60 INTERCHANGEABLE
Seal,oil
Koehring Cranes, Inc Dba Terex Cranes Div Waverly Operations
5905-00-439-5768337325 INTERCHANGEABLE
Resistor,variable,wire Wound,pre
Lockheed Martin Corporation Div Rms - Mitchel Field
2825-01-227-0031 INTERCHANGEABLE
Gland
2520-01-312-2191121860 INTERCHANGEABLE
Differential Gear Unit
Clark Material Handling Company
Cross-Reference Index
Part NumberManufacturer
121860 Haulmark Trailers (australia) Pty Ltd (AUS)
140380 PRIMARY Sealco Air Controls Inc (USA)
Related Parts
5310-00-034-2824INTERCHANGEABLE
NUT
5330-00-418-6795INTERCHANGEABLE
SEAL,OIL
1218-60
5905-00-439-5768INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,PRE
337325
2825-01-227-0031INTERCHANGEABLE
GLAND
2520-01-312-2191INTERCHANGEABLE
DIFFERENTIAL GEAR UNIT
121860

Frequently Asked Questions

What is NSN 2530-01-654-0057?

NSN 2530-01-654-0057 is a Valve,protecting,multicircuit Ai, manufactured by Sealco Air Controls Inc, classified under FSC 2530 (No Item Name Available). Status: active.

What are the part numbers for NSN 2530-01-654-0057?

NSN 2530-01-654-0057 has 2 cross-referenced part numbers: 121860 (Haulmark Trailers (australia) Pty Ltd), 140380 (Sealco Air Controls Inc).

What NSN replaces 2530-01-654-0057?

There are 5 known substitutes for 2530-01-654-0057: 5310-00-034-2824, 5330-00-418-6795, 5905-00-439-5768 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 140380?

Key specifications for 140380: Special Features: COMMONLY USED TO PROTECT AIR BRAKE RESERVOIRS FROM BEING DEPLETED BY THE FAILURE OF OTHER AIR ACCESSORY ITEMS.; Supplementary Features: PORT SIZE(NPT)INLET AND OUTLET 0.250 INCH; NOMINAL CLOSING PRESSURE: 70 PSI IN; Part Name Assigned by Controlling Agency: PRESSURE PROTECTION VALVE. 3 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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