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426678 — PUMP,ROTARY

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

426678: PUMP,ROTARY.

The PUMP,ROTARY is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1060 OR STEEL COMP 1070 OR STEEL COMP 1078 OR STEEL COMP 1080 OVERALL, hole_diameter: 0.168 INCHES MINIMUM AND 0.178 INCHES MAXIMUM IN, operation_method: POWERED, outside_diameter: 0.296 INCHES MAXIMUM IN, style_designator: SPLIT HELICAL-RIGHT HAND, surface_treatment: TIN OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-042-6678, 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
426678
NSN: 5310-00-042-6678
NIINs: 000426678, 000898711
FSC: 5310 — Nuts and Washers
CAGE: 24617 — GENERAL MOTORS CORP (USA)
SPECIFICATIONS
materialSTEEL COMP 1060 OR STEEL COMP 1070 OR STEEL COMP 1078 OR STEEL COMP 1080 OVERALL
hole_diameter0.168 INCHES MINIMUM AND 0.178 INCHES MAXIMUM IN
operation_methodPOWERED
outside_diameter0.296 INCHES MAXIMUM IN
style_designatorSPLIT HELICAL-RIGHT HAND
surface_treatmentTIN OVERALL
material_thickness0.040 INCHES NOMINAL IN
media_for_which_designedHYDROCARBON FUELS AND OILS
nondefinitive_spec/std_dataA CLASS AND 2 STYLE
material_document_and_classificationASTM A576 ASSN STD ALL MATERIAL RESPONSES OVERALL
NSN5310-00-042-6678
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 426678 · 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
•
STYLE DESIGNATOR: SPLIT HELICAL-RIGHT HAND
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A576 ASSN STD ALL MATERIAL RESPONSES OVERALL
•
OUTSIDE DIAMETER: 0.296 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.040 INCHES NOMINAL IN
•
NONDEFINITIVE SPEC/STD DATA: A CLASS AND 2 STYLE
•
SURFACE TREATMENT: TIN OVERALL
•
MATERIAL: STEEL COMP 1060 OR STEEL COMP 1070 OR STEEL COMP 1078 OR STEEL COMP 1080 OVERALL
•
HOLE DIAMETER: 0.168 INCHES MINIMUM AND 0.178 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORSPLIT HELICAL-RIGHT HAND
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A576 ASSN STD ALL MATERIAL RESPONSES OVERALL
OUTSIDE DIAMETER0.296 INCHES MAXIMUM IN
MATERIAL THICKNESS0.040 INCHES NOMINAL IN
NONDEFINITIVE SPEC/STD DATAA CLASS AND 2 STYLE
SURFACE TREATMENTTIN OVERALL
MATERIALSTEEL COMP 1060 OR STEEL COMP 1070 OR STEEL COMP 1078 OR STEEL COMP 1080 OVERALL
HOLE DIAMETER0.168 INCHES MINIMUM AND 0.178 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 3
12X195Reference document
Same NSN cross-reference
Reference document — Secondary reference
FFW84CLASSASTYLE2Reference document
Same NSN cross-reference
Reference document — Identification reference
5310000426678Reference document
Same NSN cross-reference
Reference document — Informative reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 426678?
426678 is a PUMP,ROTARY.
What parts can replace 426678?
There are 3 known substitutes for 426678: 12X195, FFW84CLASSASTYLE2, 5310000426678. Substitute compatibility should be verified for your specific system.
What is the NSN for 426678?
426678 is cataloged in the U.S. Government catalog under NSN 5310-00-042-6678. 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.