PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

M1LSTD431Compressor Unit,reciprocating

Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M · NSN 4310-00-075-5251 · FSC 4310 · No Item Name Available
Verified by PartsTable
NSN 4310-00-075-5251 — this item is cataloged by the U.S. Government under National Stock Number 4310-00-075-5251. Primary manufacturer part number: M1LSTD431.
Features
  • Compressor Unit,reciprocating — FSC 4310
  • Control Device Type: AUTOMOTIVE SPEED REGULATOR
  • Silencer Type: INLET
  • Discharge Connection Type: OVAL FLANGE
  • Cylinder Quantity: 2
  • Cooling System Design: SINGLE
  • Intake Connection Type: OVAL FLANGE
  • Stage Quantity: 2
Applications
  • Hydraulic and pneumatic systems
  • Industrial process pumping
  • Military vehicle hydraulics
General Description

The Compressor Unit,reciprocating, cataloged under National Stock Number 4310-00-075-5251, is classified within Federal Supply Class 4310 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 16 verified specifications, 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4310-00-075-5251
Primary Part NumberM1LSTD431
Item NameCompressor Unit,reciprocating
FSC / FSG4310 / 43 — No Item Name Available
ManufacturerMilitary Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Control Device TypeAUTOMOTIVE SPEED REGULATOR
Silencer TypeINLET
Discharge Connection TypeOVAL FLANGE
Cylinder Quantity2
Cooling System DesignSINGLE
Intake Connection TypeOVAL FLANGE
Stage Quantity2
Safety Device TypeRELIEF VALVE
Compressor Quantity1
Reciprocating Compressor DesignSINGLE ACTING
Specification/standard Data81349-MIL-C-13874G GOVERNMENT SPECIFICATION G
Cylinder Arrangement StyleVERTICAL DESIGN
Discharge Connection Quantity1
Prime Mover TypeGASOLINE ENGINE
Intake Connection Quantity1
Duty Cycle in Percent100
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
4310-00-203-0569 INTERCHANGEABLE
Compressor Unit,rotary
4310-00-508-3361376HG INTERCHANGEABLE
Compressor Unit,reciprocating
Dresser Industries Inc Leroi Div
4310-00-608-1146G321 INTERCHANGEABLE
Compressor Unit,reciprocating
Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Pump Division
4310-00-861-9823 INTERCHANGEABLE
Compressor Unit,reciprocating
Cross-Reference Index
Part NumberManufacturer
M1LSTD431 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MILC13874 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
4310-00-203-0569INTERCHANGEABLE
COMPRESSOR UNIT,ROTARY
4310-00-508-3361INTERCHANGEABLE
COMPRESSOR UNIT,RECIPROCATING
376HG
4310-00-608-1146INTERCHANGEABLE
COMPRESSOR UNIT,RECIPROCATING
G321
4310-00-861-9823INTERCHANGEABLE
COMPRESSOR UNIT,RECIPROCATING

Frequently Asked Questions

What is NSN 4310-00-075-5251?

NSN 4310-00-075-5251 is a Compressor Unit,reciprocating, manufactured by Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 4310 (No Item Name Available). Status: active.

What are the part numbers for NSN 4310-00-075-5251?

NSN 4310-00-075-5251 has 2 cross-referenced part numbers: M1LSTD431 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), MILC13874 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 4310-00-075-5251?

There are 4 known substitutes for 4310-00-075-5251: 4310-00-203-0569, 4310-00-508-3361, 4310-00-608-1146 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of M1LSTD431?

Key specifications for M1LSTD431: Control Device Type: AUTOMOTIVE SPEED REGULATOR; Silencer Type: INLET; Discharge Connection Type: OVAL FLANGE; Cylinder Quantity: 2. 16 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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