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5009278 — VALVE FLAPPER,PUMP

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

5009278: VALVE FLAPPER,PUMP.

The VALVE FLAPPER,PUMP is a the manufacturer industrial component. Key specifications include special_features: PACER SPECIAL. This part is cataloged in the U.S.

Government catalog under NSN 5315-00-500-9278, 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
5009278
NSN: 5315-00-500-9278
NIINs: 005009278, 013650137
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 19204 — ARMY, UNITED STATES DEPARTMENT OF THE DBA ROCK ISLAND ARSENAL JMTC (USA)
SPECIFICATIONS
special_featuresPACER SPECIAL
NSN5315-00-500-9278
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 5009278 · 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
•
SHANK DIAMETER: 0.089 INCHES MINIMUM AND 0.094 INCHES MAXIMUM IN
•
SECOND SHANK DIAMETER: 0.089 INCHES MINIMUM AND 0.094 INCHES MAXIMUM IN
•
SURFACE FINISH: 125.000 MICROINCHES OVERALL
•
FIRST END LOCATION: SHOULDER END
•
FIRST END STYLE: OVAL
•
HARDNESS RATING: 55.0 ROCKWELL D MINIMUM AND 61.0 ROCKWELL D MAXIMUM OVERALL
•
SHANK LENGTH: 0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: SHOULDER
TECHNICAL CHARACTERISTICS
SHANK DIAMETER0.089 INCHES MINIMUM AND 0.094 INCHES MAXIMUM IN
SECOND SHANK DIAMETER0.089 INCHES MINIMUM AND 0.094 INCHES MAXIMUM IN
SURFACE FINISH125.000 MICROINCHES OVERALL
FIRST END LOCATIONSHOULDER END
FIRST END STYLEOVAL
HARDNESS RATING55.0 ROCKWELL D MINIMUM AND 61.0 ROCKWELL D MAXIMUM OVERALL
SHANK LENGTH0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN
STYLE DESIGNATORSHOULDER
OVERALL LENGTH0.780 INCHES MINIMUM AND 0.800 INCHES MAXIMUM IN
SECOND END RELATIONSHIP WITH FIRST ENDNOT IDENTICAL
SUBSTITUTES & CROSS-REFERENCES 1
5315-500-9278Reference document
Same NSN cross-reference
Reference document — Informative reference only
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 5009278?
5009278 is a VALVE FLAPPER,PUMP.
What parts can replace 5009278?
There is 1 known substitute for 5009278: 5315-500-9278. Substitute compatibility should be verified for your specific system.
What is the NSN for 5009278?
5009278 is cataloged in the U.S. Government catalog under NSN 5315-00-500-9278. 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.