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578311 — PARTS KIT,ROTARY PUMP

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

578311: PARTS KIT,ROTARY PUMP.

The PARTS KIT,ROTARY PUMP is a the manufacturer industrial component. Key specifications include end_item_name: ROTARY PUMP, end_item_source: 62983, component_quantity: 36, end_item_identification: 35V25A-20. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-891-9402, 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
578311
NSN: 5310-00-891-9402
NIINs: 008919402, 011826851
FSC: 5310 — Nuts and Washers
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
end_item_nameROTARY PUMP
end_item_source62983
component_quantity36
end_item_identification35V25A-20
NSN5310-00-891-9402
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 578311 · 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
•
PLATE THICKNESS: 0.037 INCHES MAXIMUM IN
•
NUT LENGTH: 0.526 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: AMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
•
THREAD SERIES: UNF
•
MOUNTING HOLE ARRANGEMENT STYLE: 2 HOLES
•
HARDNESS RATING: 40.0 ROCKWELL C MINIMUM AND 46.0 ROCKWELL C MAXIMUM
•
MATERIAL DOCUMENT AND CLASSIFICATION: C-1042,FSCM 77445 MFR REF SINGLE MATERIAL RESPONSE OVERALL
•
MOUNTING HOLE DIAMETER: 0.098 INCHES MINIMUM AND 0.103 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
PLATE THICKNESS0.037 INCHES MAXIMUM IN
NUT LENGTH0.526 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONAMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
THREAD SERIESUNF
MOUNTING HOLE ARRANGEMENT STYLE2 HOLES
HARDNESS RATING40.0 ROCKWELL C MINIMUM AND 46.0 ROCKWELL C MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONC-1042,FSCM 77445 MFR REF SINGLE MATERIAL RESPONSE OVERALL
MOUNTING HOLE DIAMETER0.098 INCHES MINIMUM AND 0.103 INCHES MAXIMUM IN
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.190 INCHES IN
SUBSTITUTES & CROSS-REFERENCES 5
578321Reference document
Same NSN cross-reference
Reference document — Secondary reference
578320Reference document
Same NSN cross-reference
Reference document — Secondary reference
578322Reference document
Same NSN cross-reference
Reference document — Secondary reference
M12620-02Reference document
Same NSN cross-reference
Reference document — Secondary reference
MK3000-3Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 578311?
578311 is a PARTS KIT,ROTARY PUMP.
What parts can replace 578311?
There are 5 known substitutes for 578311: 578321, 578320, 578322 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 578311?
578311 is cataloged in the U.S. Government catalog under NSN 5310-00-891-9402. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.