PartsTable
Technical Data Sheet
H56-4 ✓ 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 TAPPET,ENGINE POPPET VALVE is a the manufacturer industrial component. Key specifications include material: STEEL WRENCHING SURFACE, nut_style: HEXAGON, nut_height: 0.240 INCHES MINIMUM AND 0.328 INCHES MAXIMUM IN, body_length: 0.925 INCHES NOMINAL IN, temp_rating: 800.0 FAHRENHEIT NOMINAL DEGF, blade_length: 0.500 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-059-9265, 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
H56-4
NSN: 5310-00-059-9265
FSC: 5310
CAGE: R1120 — SATAIR A/S (DNK)
SPECIFICATIONS
materialSTEEL WRENCHING SURFACE
nut_styleHEXAGON
nut_height0.240 INCHES MINIMUM AND 0.328 INCHES MAXIMUM IN
body_length0.925 INCHES NOMINAL IN
temp_rating800.0 FAHRENHEIT NOMINAL DEGF
blade_length0.500 INCHES NOMINAL IN
flats_length0.219 INCHES NOMINAL IN
thread_class3B
adjustabilityADJUSTABLE
rating_methodELECTRICAL SINGLE COMPONENT SINGLE WINDING
thread_seriesUNF
cam_end_height0.115 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN
NSN5310-00-059-9265
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: H56-4 · 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
PRECIOUS MATERIAL AND LOCATION: OVERALL SILVER
NOMINAL THREAD SIZE: 0.250 INCHES IN
COUNTERSINK ANGLE: 88.0 DEGREES NOMINAL NUT
PRECIOUS MATERIAL: SILVER
NUT STYLE: HEXAGON
WIDTH ACROSS FLATS: 0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN
SURFACE TREATMENT: SILVER OVERALL
BEARING SURFACE TYPE: CHAMFERED OR WASHER FACED
TECHNICAL CHARACTERISTICS (FLIS)
PRECIOUS MATERIAL AND LOCATIONOVERALL SILVER
NOMINAL THREAD SIZE0.250 INCHES IN
COUNTERSINK ANGLE88.0 DEGREES NOMINAL NUT
PRECIOUS MATERIALSILVER
NUT STYLEHEXAGON
WIDTH ACROSS FLATS0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN
SURFACE TREATMENTSILVER OVERALL
BEARING SURFACE TYPECHAMFERED OR WASHER FACED
NUT HEIGHT0.240 INCHES MINIMUM AND 0.328 INCHES MAXIMUM IN
LOCKING FEATUREPREVAILING TORQUE ALL METAL DESIGN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
220415BSInterchangeable
interchangeable cross-reference
interchangeable
45812Interchangeable
interchangeable cross-reference
interchangeable
AN363C428Interchangeable
interchangeable cross-reference
interchangeable
272 458 919Interchangeable
interchangeable cross-reference
interchangeable
E25766-01Interchangeable
interchangeable cross-reference
interchangeable
GGG-K-00275Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
Ready to buy H56-4?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is H56-4?
H56-4 is a TAPPET,ENGINE POPPET VALVE.
What parts can replace H56-4?
There are 19 known substitutes for H56-4: 220415BS, 45812, AN363C428 and 16 more. Substitute compatibility should be verified for your specific system.
Is H56-4 still available?
H56-4 is currently cancelled.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — H56-4