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PartsTable / COMPONENT / 19-0139
19-0139 ✓ Verified by PartsTable
— · NUT WASHER
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

The VALVE,SOLENOID is a the manufacturer industrial component. Key specifications include special_features: VALVE 2-WAY, 1/2 INCH FNPT IN, end_item_identification: RC7000 PLUS REVERSE OSMOSIS UNIT. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-088-0553, 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
19-0139
NSN: 5310-00-088-0553
FSC: 5310
CAGE: 73342 — ALLISON TRANSMISSION INC DBA ALLISON TRANSMISSION, INC (USA)
SPECIFICATIONS
special_featuresVALVE 2-WAY, 1/2 INCH FNPT IN
end_item_identificationRC7000 PLUS REVERSE OSMOSIS UNIT
NSN5310-00-088-0553
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 19-0139 · OEM ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
NUT STYLE: HEXAGON
•
BEARING SURFACE TYPE: CHAMFERED OR WASHER FACED
•
THREAD SERIES: UNIFIED NATIONAL JOINT FINE (UNJF)
•
NOMINAL THREAD SIZE: 0.312 INCHES IN
•
WIDTH ACROSS FLATS: 0.492 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN
•
SURFACE TREATMENT: CADMIUM AND CHROMATE NUT
•
BEARING SURFACE FINISH: 125.0 MICROINCHES
•
LUBRICATION: SOLUBLE LUBRICANT
TECHNICAL CHARACTERISTICS (FLIS)
NUT STYLEHEXAGON
BEARING SURFACE TYPECHAMFERED OR WASHER FACED
THREAD SERIESUNIFIED NATIONAL JOINT FINE (UNJF)
NOMINAL THREAD SIZE0.312 INCHES IN
WIDTH ACROSS FLATS0.492 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN
SURFACE TREATMENTCADMIUM AND CHROMATE NUT
BEARING SURFACE FINISH125.0 MICROINCHES
LUBRICATIONSOLUBLE LUBRICANT
THREAD QUANTITY PER INCH24
TEMP RATING250.0 FAHRENHEIT NOMINAL DEGF
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
870126-1Interchangeable
interchangeable cross-reference
interchangeable
870126Interchangeable
interchangeable cross-reference
interchangeable
55242Interchangeable
interchangeable cross-reference
interchangeable
U6A909351XInterchangeable
interchangeable cross-reference
interchangeable
SW705-1PInterchangeable
interchangeable cross-reference
interchangeable
1666195Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 19-0139?
19-0139 is a VALVE,SOLENOID.
What parts can replace 19-0139?
There are 16 known substitutes for 19-0139: 870126-1, 870126, 55242 and 13 more. Substitute compatibility should be verified for your specific system.
Is 19-0139 still available?
19-0139 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026