PartsTable
Technical Data Sheet
034-19578 ✓ 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 KEY,MACHINE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, overall_width: 0.1875 INCHES MINIMUM AND 0.1885 INCHES MAXIMUM IN, overall_height: 0.1875 INCHES MINIMUM AND 0.1885 INCHES MAXIMUM IN, overall_length: 1.240 INCHES MINIMUM AND 1.260 INCHES MAXIMUM IN, style_designator: PLAIN, starting_edge_shape: STRAIGHT. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-264-3099, 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
034-19578
NSN: 5315-00-264-3099
FSC: 5315
CAGE: 9F512 — PARKER-HANNIFIN CORPORATION DBA PNEUTRONICS DIV HYDRAULIC PUMP DIVISION (USA)
SPECIFICATIONS
materialSTEEL OVERALL
overall_width0.1875 INCHES MINIMUM AND 0.1885 INCHES MAXIMUM IN
overall_height0.1875 INCHES MINIMUM AND 0.1885 INCHES MAXIMUM IN
overall_length1.240 INCHES MINIMUM AND 1.260 INCHES MAXIMUM IN
style_designatorPLAIN
starting_edge_shapeSTRAIGHT
nondefinitive_spec/std_data2 TYPE AND 1 STYLE AND C GRADE
material_document_and_classification66 COMP 1018 TO 1035 FED STD SINGLE MATERIAL RESPONSE OVERALL
NSN5315-00-264-3099
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 034-19578 · 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
STARTING EDGE SHAPE: STRAIGHT
NONDEFINITIVE SPEC/STD DATA: 2 TYPE AND 1 STYLE AND C GRADE
STYLE DESIGNATOR: PLAIN
MATERIAL: STEEL OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION: 66 COMP 1018 TO 1035 FED STD SINGLE MATERIAL RESPONSE OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
STARTING EDGE SHAPESTRAIGHT
NONDEFINITIVE SPEC/STD DATA2 TYPE AND 1 STYLE AND C GRADE
STYLE DESIGNATORPLAIN
OVERALL LENGTH1.240 INCHES MINIMUM AND 1.260 INCHES MAXIMUM IN
MATERIALSTEEL OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION66 COMP 1018 TO 1035 FED STD SINGLE MATERIAL RESPONSE OVERALL
OVERALL HEIGHT0.1875 INCHES MINIMUM AND 0.1885 INCHES MAXIMUM IN
OVERALL WIDTH0.1875 INCHES MINIMUM AND 0.1885 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
995-5Interchangeable
interchangeable cross-reference
interchangeable
91304138Interchangeable
interchangeable cross-reference
interchangeable
772183007207Interchangeable
interchangeable cross-reference
interchangeable
K1011-4Interchangeable
interchangeable cross-reference
interchangeable
712731-4Interchangeable
interchangeable cross-reference
interchangeable
YC66Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 034-19578?
034-19578 is a KEY,MACHINE.
What parts can replace 034-19578?
There are 20 known substitutes for 034-19578: 995-5, 91304138, 772183007207 and 17 more. Substitute compatibility should be verified for your specific system.
Is 034-19578 still available?
034-19578 is currently cancelled.
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