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G-321 ✓ Verified by PartsTable
— · COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The COMPRESSOR UNIT,RECIPROCATING is a the manufacturer industrial component. Key specifications include sight_height: 4.312 INCHES NOMINAL IN, silencer_type: INLET, furnished_data: LIQUID LEVEL, overall_height: 6.063 INCHES NOMINAL IN, mounting_method: BASE, basic_ingredient: POLYMETHYLTHENYL SILICONE FLUID-LITHIUM SOAP. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6680-00-526-9354, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
G-321
NSN: 6680-00-526-9354
FSC: 6680
CAGE: 24346 — LDI INDUSTRIES, INC. DBA LDI INDUSTRIES INC (USA)
SPECIFICATIONS
sight_height4.312 INCHES NOMINAL IN
silencer_typeINLET
furnished_dataLIQUID LEVEL
overall_height6.063 INCHES NOMINAL IN
stage_quantity2
mounting_methodBASE
basic_ingredientPOLYMETHYLTHENYL SILICONE FLUID-LITHIUM SOAP
overall_diameter2.500 INCHES NOMINAL IN
prime_mover_typeGASOLINE ENGINE
special_featuresRUNNING BOARD HOLDER FOR NOZZLES AND FITTINGS, POSITIVE GRIP, TRIPLE-LOCK LUGS
style_designatorVERTICAL SHIELDED, SINGLE PORT
unable_to_decodeUNABLE TO DECODE
NSN6680-00-526-9354
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available COMPRESSOR UNIT,RECIPROCATING TITLE COMPONENT PN G-321 MFR COMPRESSOR UNIT,RECIPR
KEY FEATURES
•
UNABLE TO DECODE: UNABLE TO DECODE
•
DATA FURNISHING METHOD: CLEAR WINDOW
•
STYLE DESIGNATOR: VERTICAL SHIELDED, SINGLE PORT
•
SIGHT HEIGHT: 4.312 INCHES NOMINAL IN
•
MEDIA FOR WHICH DESIGNED: OIL
TECHNICAL CHARACTERISTICS (FLIS)
UNABLE TO DECODEUNABLE TO DECODE
DATA FURNISHING METHODCLEAR WINDOW
STYLE DESIGNATORVERTICAL SHIELDED, SINGLE PORT
SIGHT HEIGHT4.312 INCHES NOMINAL IN
UNABLE TO DECODEUNABLE TO DECODE
UNABLE TO DECODEUNABLE TO DECODE
UNABLE TO DECODEUNABLE TO DECODE
MEDIA FOR WHICH DESIGNEDOIL
FURNISHED DATALIQUID LEVEL
UNABLE TO DECODEUNABLE TO DECODE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 23
12250NInterchangeable
interchangeable cross-reference
interchangeable
12261NInterchangeable
interchangeable cross-reference
interchangeable
15118-15260Interchangeable
interchangeable cross-reference
interchangeable
131-309-3Interchangeable
interchangeable cross-reference
interchangeable
ST293Interchangeable
interchangeable cross-reference
interchangeable
423-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is G-321?
G-321 is a COMPRESSOR UNIT,RECIPROCATING.
What parts can replace G-321?
There are 23 known substitutes for G-321: 12250N, 12261N, 15118-15260 and 20 more. Substitute compatibility should be verified for your specific system.
What is the NSN for G-321?
G-321 is cataloged in the Federal Logistics Information System (FLIS) under NSN 6680-00-526-9354. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026